As a result, the melting points are much lower for unsaturated fatty acids. 69.3 °C in 156.7 °F; 342.4 K. The boiling point of Stearic acid. For stearin, these melt at 54 (α-form), 65, and 72.5 °C (β-form). Ecol., 33, 2005, 1071-1076. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 35 C; End T: 320 C; End time: 10 min; CAS no: 57114; Active phase: Ultra-1; Carrier gas: He; Phase thickness: 0.52 um; Data type: Linear RI; Authors: Richmond, R.; Pombo-Villar, E., Short communication. It is soluble in alcohol, ether, and chloroform,and is insolublein water. As a result, the melting points are much lower for unsaturated fatty acids.". ; Roberts, D.W., Application of Lee retention indices to the confirmation of tentatively identified compounds from GC/MS analysis of environmental samples, Technical paper, Analytical Services Division, Environmental Science&Engineering, Inc, PO Box 1703, Gainesville, FL 32602, 2002, 11. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 40 C; End T: 285 C; End time: 29.5 min; Start time: 3 min; CAS no: 57114; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Donnelly, J.R.; Abdel-Hamid, M.S. This implies that depending on the batch, the stearic acid/palmitic acid ratio may vary, leading to nonreproducible temperature and melting heat data. Stearic acid is a saturated fatty acid that is made up of 18 carbons. CopyCopied, CSID:5091, http://www.chemspider.com/Chemical-Structure.5091.html (accessed 12:16, Feb 23, 2021)
Cited in 1 publications Changes in state cause bonds to be broken or made. ), Revista CENIC Ciencias Quimicas, 33(3), 2002, 115-119. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 30 C; End T: 260 C; End time: 28 min; Start time: 2 min; CAS no: 57114; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Leffingwell, J.C.; Alford, E.D., Volatile constituents of Perique tobacco, Electron. Sci., 19, 1981, 219-226. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 250 C; End time: 30 min; Start time: 8 min; CAS no: 57114; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Benkaci-Ali, F.; Baaliouamer, A.; Meklati, B.Y. Technol., 39(11), 1992, 976-983. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 240 C; Start time: 10 min; CAS no: 57114; Active phase: DB-Wax; Carrier gas: He; Data type: Normal alkane RI; Authors: Hatsuko, S.; Kazuko, H.; Masayoshi, K.; Yoshiaki, I., Improvement of quality of likorine extract by heat treatment, J. dT mp = Kf x m x i. dT mp = change in melting point = mp of pure acid - mp mixture. Commercial “stearic acid” is a mixture of approximately equal amounts of stearic and palmitic acids and small amounts of oleic acid. Octadecanoic acid is a saturated fatty acid with melting point 69 °C. Oil Res., 16, 2004, 318-320. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 2 min; CAS no: 57114; Active phase: SPB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Pino, J.A. Is stearic acid saturated or unsaturated. Stearic acid is considered a healthy saturated fat and does not appear to raise your risk of heart disease. J., 21, 2006, 290-293. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 280 C; Start time: 5 min; CAS no: 57114; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Skaltsa, H.D. Food Chem., 51, 2003, 3836-3839. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 100 C; End T: 280 C; Start time: 1 min; CAS no: 57114; Active phase: PE-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Pandey-Rai S.; Mallavarapu G.R. ; Morelli, I., Differences in the fragrances of pollen and different floral parts of male and female flowers of Laurus nobilis, J. Agric. Stearic acid: NLT 90.0%. ; Conforti, F.; Cesca, G.; Menichini, F., Comparative chemical variability of the non-polar extracts from Senecio cineraria group (Asteraceae), Biochem. The m.p. Schltr. The IUPAC name is octadecanoic acid. var. J., 14, 1999, 233-236. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; CAS no: 57114; Active phase: Ultra-1; Carrier gas: He; Phase thickness: 0.52 um; Data type: Normal alkane RI; Authors: Richmond, R.; Pombo-Villar, E., Short communication. The aim of this study was to investigate the effect of stearic acid on markers of hepatocyte transplantation in rats with acetaminophen ()-induced liver damage.Wistar rats were randomly assigned to 10-day treatment. Similar Structures. Stearic acid Accession Number DB03193 Description. Melting and freezing stearic acid Class practical In this class practical students take the temperature of stearic acid at regular intervals as they heat and cool it. It can thicken a product, but that's all it can do. ; Janackovic P.; Milosavljevic S., Comparative examination of the essential oils of Anthemis ruthenica and A-arvensis wild-growing in Serbia, Flavour Fragr. ; Urso, A.; Geleta, L., Broad spectrum analysis of municipal and industrial effluents discharged into the Peace, Athabasca and Slave river basins: characterization of effluent samples, 1994 - Volume 1 of 2, Northern River Basins Study Project Report No. Compare palmitic and palmitoleic acids. J., 17, 2002, 187-190. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 80 C; End T: 250 C; CAS no: 57114; Active phase: TC-WAX FFS; Carrier gas: He; Data type: Normal alkane RI; Authors: Miyazawa, M.; Kurose, K.; Itoh, A.; Hiraoka, N.; Kameoka, H., Components of the essential oil from Glehnia littoralis, Flavour Fragr. Odor Threshold : 20 ppm Water/Oil Dist. ; Ayop, N.; Ahmad, A.S., Constituents of the essential oils of Cinnamomum sintoc Blume from a mountain forest of Peninsular Malaysia, Flavour Fragr. Oil Res., 16, 2004, 302-304. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 250 C; End time: 5 min; Start time: 2 min; CAS no: 57114; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Wu, S.; Zorn, H.; Krings, U.; Berger, R.G., Characteristic Volatiles from Young and Aged Fruiting Bodies of Wild Polyporus sulfureus (Bull.:Fr.) Lipid melting point (slip point) plotted as a function of stearic acid (18:0) in lipids from eight subcutaneous adipose tissue depots. C 18 H 36 O 2. Comments updated 09-16-00 : C 18:0 Stearic acid (Octadecanoic) CAS number: 57-11-4: molecular formula : C 18 H 36 O 2: molecular weight: 284.48 : Melting point °C: 69.6, 67-69: Boiling point °C (mm … ; Zoghbi, M.G.B., Volatile constituents of the leaves, fruits and flowers of cashew ( Anacardium occidentaleL. FEMA Number 3035 . Stearin increases the melting point of paraffin wax to 80°C (176°F). Use of persistent trace gas chromatography artifacts for the calculation of pseudo-Sadtler retention indices, J. Chromatogr. Synonym: 1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearic acid, Stearophanic acid Linear Formula: CH 3 (CH 2 ) 16 COOH Molecular Weight: 284.48 ; Rezende, C.M., Zizyphus mauritiana Lam. since both stearic acid and glucose are solids at room temperature, you're going to have to melt the stearic acid first, then add the glucose. Molecular weight increases with number of carbons and hence chain length of the fatty acid. A, 1114, 2006, 164-169. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 240 C; CAS no: 57114; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Rezazadeh, S.; Hamedani, M.P. Anal., 13, 2000, 227-232. class: Standard non-polar; Column diameter: 0.25 mm; Column length: 25 m; Column type: Capillary; Description: 60C => 5C/min => 220C (5min) => 3C/min => 245 C (5min); CAS no: 57114; Active phase: BP-1; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Khan, M.; Srivastava, S.K. The melting point of magnesium stearate is 85.5 °C, but the calcium stearate produced from the reaction of calcium oxide and stearic acid melts at 155 °C. Molecular weight increases with number of carbons and hence chain length of the fatty acid… and Centaurea liberica Trev. sphaerocephala, two Asteraceae growing wild in Sicily, Flavour Fragr. J., 21, 2006, 423-426. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C =>2C/min => 60C =>4C/min =>260C; CAS no: 57114; Active phase: DB-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Maia, J.G.S. A C18 straight-chain saturated fatty acid component of many animal and vegetable lipids. Adding a substance with a high melting point - like stearic acid - to paraffin has a tendency to raise the average melting point of the mixture, on the contrary, to lower the melting point of a high melting point paraffin, to give the colors a pastel shade, to "harden" the candle. What is the importance of Constellation to our lives? Combustible. Shop a large selection of products and learn more about Stearic acid, 97%, ACROS Organics. It is soluble in alcohol, ether, and chloroform,and is insolublein water. water. 121, Norther River Basins Study, Edmonton, Alberta, 1997, 27. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 35 C; End T: 320 C; End time: 10 min; CAS no: 57114; Active phase: Ultra-1; Phase thickness: 0.52 um; Data type: Linear RI; Authors: Richmond, R.; Pombo-Villar, E., Short communication. As well as in the diet, it is used in hardening soaps, softening plastics and in making co; smetics, candles an
Chromatogr., 642, 1993, 409-415. class: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 50 0C (5 min) ^ 3 0C/min -> 120 0C ^ 5 0C/min -> 250 0C (3 min) ^ 15 0C/min -> 300 0C (20 min); CAS no: 57114; Active phase: DB-1; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Delort, E.; Jaquier, A., Novel terpenyl esters from Australian finger lime (Citrus australasica) peel extract, Flav. J., 20, 2005, 601-604. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 2 min; CAS no: 57114; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Pino, J.A. ; Mesa, J.; Munoz, Y.; Marti, M.P. As its ester, stearic acid is one of the most common saturated fatty acids found in nature following palmitic acid. ; Srivastava S.; Singh D.; Mishra R.; Kumar S., Volatile components of leaves and flowers of periwinkle Catharanthus roseus (L.) G. Don from New Delhi, Flavour Fragr. Less drips and smoking. 12-hydroxy stearic acid is entirely vegetable-based, and not tested on animals at any part of the manufacturing process. ; Peel, H.W., The use of retention indices and temperature-programmed gas chromatography in analytical toxicology, J. Chromatogr. Commercial “stearic acid” is a mixture of approximately equal amounts of stearic and palmitic acids and small amounts of oleic acid… These molecules do not "stack" very well. Stearine candles burn longer, with steady, unwavering flames. Display Name: Stearic acid EC Number: 200-313-4 EC Name: Stearic acid CAS Number: 57-11-4 Molecular formula: C18H36O2 IUPAC Name: octadecanoic acid Likewise, why does stearic acid have a higher melting point than linoleic acid? /EXPL THER/ Stearic acid is known as a potent anti-inflammatory lipid. from Cuba, J. Essent. ; Gurka, D.F., Application of gas chromatographic retention properties to the identification of environmental contaminants, J. ; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. How do you hang a picture on a sawtooth bracket? Both are saturated fatty acids but stearic acid (C 18) has more molecular weight than palmitic acid (C 16) hence more melting point. ; Guilhon, G.M.S.P., Analysis by GC-MS of the hexane extract of the aerial parts of Aristolochia acutifolia Duchtr., Flavour Fragr. © AskingLot.com LTD 2021 All Rights Reserved. >230 °F. Stearic acid is a tablet lubricant with melting point of 57.23 C (Wang et al., 2010). Rubber Industry : Stearic Acid rubber grade is used in vulcanization of surfactants, making plasticizers, softeners, water proofing agents, PVC additives etc. Reproduced with permission from Turk, S. N. and Smith, S. B. ; Marbot, R.; Rosado, A.; Vazquez, C., Volatile constituents of Malay rose apple [Syzygium malaccense (L.) Merr. What does stearic acid dissolve in? (Rhamnaceae) and the chemical composition of its floral fecal odor, J. Braz. Both are saturated fatty acids but stearic acid (C18) has more molecular weight than palmitic acid (C16) hence more melting point. Products.
MF: C18H36O2, MW: 284.5. Stearic acid is a fatty acid composed of 17 carbons in a linear chain plus a carboxylic acid group. Food Chem., 42(8), 1994, 1743-1746. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 230 C; End time: 60 min; CAS no: 57114; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shiratsuchi, H.; Shimoda, M.; Imayoshi, K.; Noda, K.; Osajima, Y., Volatile flavor compounds in spray-dried skim milk powder, J. Agric. : The product is more soluble in oil; log(oil/water) = 8.2 Ionicity (in Water) : Not available. Melting point °C. Use of persistent trace gas chromatography artifacts for the calculation of pseudo-Sadtler retention indices, J. Chromatogr. Sum of the contents Stop the agitation, and allow to stand for 15 min. The melting point of Stearic acid. J., 20, 2005, 583-586. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 2 min; CAS no: 57114; Active phase: SPB-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Pino, J.A. J., 16, 2001, 215-218. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 80 C; End T: 250 C; End time: 47 min; CAS no: 57114; Active phase: TC-Wax; Carrier gas: He; Data type: Normal alkane RI; Authors: Miyazawa, M.; Kurose, K.; Itoh, A.; Hiraoka, N., Comparison of the essential oils of Glehnia littoralis from Northern and Southern Japan, J. Agric. Stearic acid Structure (Source – PubChem) What is Stearic Acid? Std. Type Small Molecule Groups Approved, Experimental Structure. Median response time is 34 minutes and may be longer for new subjects. Res., 19(8), 2005, 749-754. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 260 C; End time: 20 min; Start time: 5 min; CAS no: 57114; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Senatore, F.; Landolfi, S.; Celik, S.; Bruno, M., Volatile components of Centaurea calcitrapa L. and Centaurea sphaerocephala L. ssp. 1kg; Plastic bottle. Food Sci. ; Chemat, F., Chemical composition of seed essential oils from Algerian Nigella sativa extracted by microwave and hydrodistillation, Flavour Fragr. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 7.87 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 375.05 (Adapted Stein & Brown method) Melting Pt (deg C): 125.24 (Mean or Weighted MP) VP(mm Hg,25 deg C): 3.34E-006 (Modified Grain … Stearic acid (IUPAC systematic name: octadecanoic acid) is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. Chromatogr., 220, 1981, 195-252. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; CAS no: 57114; Active phase: RTX-5 MS; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mebazaa, R.; Mahmoudi, A.; Fouchet, M.; Dos Santos, M.; Kamissoko, F.; Nafti, A.; Ben Cheikh, R.; Rega, B.; Camel, V., Characterization of volatile compounds in Tunisian fenugreek seeds, Food Chem., 115, 2009, 1326-1336. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50 0C (5 min) ^ 2 0C/min -> 100 0C (5 min) ^ 5 0C/min -> 300 0C; CAS no: 57114; Active phase: RTX-5 MS; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mebazaa, R.; Mahmoudi, A.; Fouchet, M.; Dos Santos, M.; Kamissoko, F.; Nafti, A.; Ben Cheikh, R.; Rega, B.; Camel, V., Characterization of volatile compounds in Tunisian fenugreek seeds, Food Chem., 115, 2009, 1326-1336. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 70 C; End T: 290 C; End time: 10 min; CAS no: 57114; Active phase: HP-5 MS; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Radulovic, N.S. Stearic acid is a typical long chain saturated fatty acid. Stearic acid, CH3(CH2)16COOH, is a white or colorless, waxlike solid with a melting point of 70°C (158 OF), and a boiling point of 232°C (450 OF) at 2 kPa. ; Harizanis, P.C. A, 811, 1998, 241-245. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 225 C; Start time: 3 min; CAS no: 57114; Active phase: Cross-Linked Methylsilicone; Carrier gas: He; Data type: Normal alkane RI; Authors: Bravo, A.; Hotchkiss, J.H., Identification of volatile compounds resulting from the thermal oxidation of polyethylene, J. Appl. The reagent grade is a better choice for melting point labs. Stearic Acid is a typical example of a fatty acid, which are essentially long hydrocarbon chains containing a carboxyl group at one end and a methyl group at the other. at Petrov, J. Serb. Its name comes from the Greek word στέαρ "stéar", which means tallow. ; Palic, R.M. A, 760, 1997, 303-308. class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 20C(0.5min) =>60C=>4C/min=>250C; CAS no: 57114; Active phase: HP-1; Carrier gas: He; Phase thickness: 1.05 um; Data type: Linear RI; Authors: Sing, A.S.C. ), making it a very effective hardening ingredient that raises the melting points of our products without adding any waxiness. Stearic acid, also known as octadecanoic acid is an important naturally occurring component of stratum corneum (SC) It is synthesized by humans and is also found in various animal and … ; Urso, A.; Geleta, L., Broad spectrum analysis of municipal and industrial effluents discharged into the Peace, Athabasca and Slave river basins: characterization of effluent samples, 1994 - Volume 1 of 2, Northern River Basins Study Project Report No. … 2) Referring to your graph, determine the point that stearic acid freezes. 6 Major food sources of stearic acid for adults are meat/ poultry/fish, grain products, and milk/milk products (Table 1). Stearic acid 70 90.0%. Soc., 74(1), 2009, 35-44. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40 0C (2 min) ^ 5 0C/min -> 80 0C ^ 7 oC/min -> 160 0C ^ 9 0C/min -> 200 0C ^ 20 0C/min -> 280 0C (10 min); CAS no: 57114; Active phase: HP-5; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G., EXtraction, preparation and identification of volatile compounds in Changyu XO brandy, Chinese J. Lam., two Asteraceae growing wild in Lebanon, Nat. Contact Us. Food Chem., 53, 2005, 2213-2223. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 2 min; CAS no: 57114; Active phase: SPB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Pino, J.; Marbot, R.; Rosado, A., Volatile constituents of star apple (Chrysophyllum cainito L.) from Cuba, Flavour Fragr. 77402-5G 77402-1G. & Perry], Flavour Fragr. Stearic acid was applied on the zinc oxide nanorods and the contact angle increased. (Lamiaceae) growing wild in Southern Italy, Flavour Fragr. J., 21, 2006, 427-430. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 260 C; End time: 20 min; Start time: 5 min; CAS no: 57114; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Senatore, F.; Apostolides Arnold, N.; Bruno, M., Volatile components of Centaurea eryngioides Lam. ... Stearic acid is not relatively soluble in water, only a fraction of a milligram of stearic acid can be liquefied in as much as a hundred grams of water. Coeff. Structure for Stearic acid … ; Peruzzi, L.; Statti, G.A. from Cuba, Flavour Fragr. Also, it seems to speed trace. While in chloroform, the solubility of stearic acid … Stearic Acid is mostly utilised in the production of cleansers, and cosmetics, for example, shampoos and shaving cream items. The intermolecular interactions are much weaker than saturated molecules. rhizome from central and southern India, Flavour Fragr. to use as much of the paper as possible. IVN-RAT LD50 22 mg kg-1, IVN-MUS LD50 23 mg kg-1, SKN-RBT LD50 > 5000 mg kg-1, Organic Compound; Food Toxin; Plant Toxin; Metabolite; Household Toxin; Animal Toxin; Natural Compound; Pharmaceutic Aid, P261-P305+P351+P338-P302+P352-P321-P405-P501a. The melting point of the stearic acid is above human body temperature, so they allow the cosmetics to adhere for an extended period. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, Predicted data is generated using the US Environmental Protection Agency’s EPISuite, Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the. It is a triglyceride derived from three units of stearic acid. of unsaturated fatty acids are much lower because the cis configuration produces a bend in the structure which decreases the number of possible van der Waals Melting Point. Food Chem., 49, 2001, 1345-1352. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 220 C; End time: 30 min; Start time: 4 min; CAS no: 57114; Active phase: DB-Wax; Carrier gas: He; Data type: Linear RI; Authors: Chung, T.Y. C 18 H 36 O 2. molecular weight. why does stearic acid melt at 69 celcus but linoleic acid melts a -9 celsus? Stearic Acid is a saturated long-chain fatty acid with an 18-carbon backbone that is a white waxy substance at room temperature. Stearic acid melts at 69.3°C (156.7°F) (that’s a higher melting point than beeswax! Subsequently, close intermolecular interactions result in generally low melting points. Melting Point : 69.4 (156.9°F) Critical Temperature : Not available. Environ., 39, 2005, 2839-2850. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 40 C; End T: 310 C; Start time: 1 min; CAS no: 57114; Active phase: DB-5MS; Phase thickness: 0.5 um; Data type: Lee RI; Authors: Chen, P.H. Now the theory goes like this. It is a waxy solid. What affects melting point of fatty acids? hermonis Boiss. Data. As well as in the diet, it is used in hardening soaps, softening plastics and in making co
Used as a thickening agent in lotions, Stearic Acid can also be used as a hardening agent in stick products and bar soaps, andin candles to increase the melting point. The freezing point of stearic acid is approximately 53, the melting point being approximately 77. According to research, the actual melting point of stearic acid is 69°C (Inchem). 121, Norther River Basins Study, Edmonton, Alberta, 1997, 27. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 60C(2min) =>15C/min =>180C =>5C/min =>280C (10min); CAS no: 57114; Active phase: LM-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Re-Poppi, N.; Santiago-Silva, M., Polycyclic aromatic hydrocarbons and other selected organic compounds in ambient air of Campo Grande City, Brazil, Atmos. Soc., 16(3B), 2005, 654-656. ass: Semi-standard non-polar; Column type: Capillary; CAS no: 57114; Active phase: DB-5; Data type: Linear RI; Authors: Ozel, M.Z. This experiment could also be done using datalogging equipment. SMILES. For example, stearic has a melting point of 69oC whereas palmitic acid has 63oC. Its GMO-free, and contains no peanuts, tree nuts, wheat, grains, dairy, eggs, fish or gluten. and A. purpurata (Viell.) ; Guirudutt, K.N., Chemical composition of the volatiles of Decalepis hamiltonii (Wight & Arn), Flavour Fragr. Stearin increases the melting point of paraffin wax to 80°C (176°F). Stearic Acid, CAS: 57-11-4, is An anti-inflammatory agent that induces ICAM-1 expression. 67-72 °C (lit.) ; Pinto, A.C.; da Costa, A.V.M. InChi. When you put your car in park in reverse? Name: Stearic acid; IUPAC name: Octadecanoic acid; Formula: C 18 H 36 O 2; Molecular weight: 284.4772 g/mol; Monoisotopic weight: 284.2715304 g/mol; Melting point: 68 °C (341 K) Boiling point: 361 °C (634 K) Synonym: Octadecanoic acid Also known as n-octadecanoic acid, stearic acid is … Stearic acid (IUPAC systematic name: octadecanoic acid) is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. J., 16, 2001, 27-29. ass: Standard non-polar; Column diameter: 0.2 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 50 C; End T: 300 C; End time: 5 min; Start time: 2 min; CAS no: 57114; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Johnson, C.I.
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