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| CAS No.: | 57-11-4 |
|---|---|
| Name: | Stearic acid |
| Molecular Structure: | |
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| Formula: | C18H36O2 |
| Molecular Weight: | 284.483 |
| Synonyms: | Stearic acid;n-octadecanoic acid;naa173;groco58;groco59;groco55;groco54;C18;pd185;NAA180;steraic acid;kam1000; |
| EINECS: | 266-928-5 |
| Density: | 0.84 |
| Melting Point: | 67-72°C(lit.) |
| Boiling Point: | 361°C(lit.) |
| Flash Point: | >230°F |
| Solubility: | 0.1-1 g/100 mL at 23 ºC |
| Appearance: | White solid with a mild odor |
| Hazard Symbols: | R11:; R36/37/38:; |
| Risk Codes: | F:Flammable; F:Flammable; |
| PSA: | 37.30000 |
| LogP: | 6.33250 |
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| Conditions | Yield |
|---|---|
| With hydrogen; palladium In ethyl acetate at 25℃; under 760.051 Torr; for 12h; | 100% |
| With hydrogen; palladium in polystyrene In tetrahydrofuran at 25℃; under 760.051 Torr; for 12h; | 100% |
| With hydrogen; 5%-palladium/activated carbon In ethyl acetate under 2585.81 Torr; for 6h; | 100% |
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1-(tert-butyldimethylsilyloxy)octadecan
- 57-11-4
stearic acid
| Conditions | Yield |
|---|---|
| With potassium fluoride; jones reagent In acetone at 0℃; for 2h; | 100% |
- 57-11-4
stearic acid
| Conditions | Yield |
|---|---|
| With trifluoroacetic acid for 15h; Product distribution; | 100% |
| Conditions | Yield |
|---|---|
| With hydrogen In methanol at 20℃; for 5h; | 99.4% |
| Multi-step reaction with 2 steps 1: KOH; butyl alcohol / Zusatz von Wasser und weiteres kurzes Erwaermen des Reaktionsgemisches 2: PtO2; glacial acetic acid / 2206.5 Torr / Hydrogenation View Scheme |
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A
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tetraphenylantimony(V) chloride
B
- 57-11-4
stearic acid
| Conditions | Yield |
|---|---|
| With aq. HCl | A 99% B n/a |
| Conditions | Yield |
|---|---|
| Stage #1: 10-bromodecanoic acid With 1-methyl-pyrrolidin-2-one; tert-butylmagnesium chloride In tetrahydrofuran at -78℃; for 0.166667h; Inert atmosphere; Stage #2: n-octylmagnesium chloride With buta-1,3-diene; nickel dichloride In tetrahydrofuran under 760.051 Torr; for 1h; Inert atmosphere; Cooling with ice; | 97% |
| Conditions | Yield |
|---|---|
| With sodium hydroxide In N,N-dimethyl-formamide for 0.75h; Ambient temperature; | 96% |
| With water; indium (III) iodide; silica gel for 0.533333h; Hydrolysis; Irradiation; | 90% |
| With potassium hydroxide In methanol at 35℃; for 1h; | 73% |
| Conditions | Yield |
|---|---|
| With hydrogen; Rhodium chloride tri(triphenylphosphine-meta-trisulfonate) In water for 18h; Ambient temperature; | 95% |
| With selenium at 300℃; | |
| With platinum(IV) oxide; acetic acid under 2206.5 Torr; Hydrogenation; | |
| hoher Wasserstoffdruck.Hydrogenation; | |
| With palladium/alumina; hydrogen In methanol at 80℃; under 15001.5 Torr; Catalytic behavior; Kinetics; Reagent/catalyst; Autoclave; |
| Conditions | Yield |
|---|---|
| With sodium hydroxide In ethanol for 1h; Reflux; | 94% |
| With Mg-Al hydrotalcite; hydrogen at 325℃; under 21446.5 Torr; | |
| With aluminum oxide; dilauryl thiodipropionate; 2,6-di-tert-butyl-4-methyl-phenol; Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate; magnesium oxide In water at 100 - 130℃; under 5250.53 Torr; for 0.75h; Temperature; |
- 20198-92-9
N-methylstearylamide
- 57-11-4
stearic acid
| Conditions | Yield |
|---|---|
| With sodium hydroxide; Glyoxal; copper dichloride Heating; | 93% |
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Specification
Stearic Acid, with the cas number 57-11-4, also called Octadecanoic Acid, one of the most common long-chain fatty acids, found in combined form in natural animal and vegetable fats. Commercial “stearic acid” is a mixture of approximately equal amounts of stearic and palmitic acids and small amounts of oleic acid. It is employed in the manufacture of candles, cosmetics, shaving soaps, lubricants, and pharmaceuticals.Stearic acid is prepared by treating these fats and oils with water at a high pressure and temperature (above 200 °C), leading to the hydrolysis of triglycerides. The resulting mixture is then distilled. Commercial stearic acid is often a mixture of stearic and palmitic acids, although purified stearic acid is available.
Physical properties about Stearic Acid are:
(1)ACD/LogP: 7.83; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 7.03; (4)ACD/LogD (pH 7.4): 5.24; (5)ACD/BCF (pH 5.5): 84062.82; (6)ACD/BCF (pH 7.4): 1348.58; (7)ACD/KOC (pH 5.5): 69237.45; (8)ACD/KOC (pH 7.4): 1110.74; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 16; (12)Index of Refraction: 1.456; (13)Molar Refractivity: 87.005 cm3; (14)Molar Volume: 320.283 cm3; (15)Polarizability: 34.491 10-24cm3; (16)Surface Tension: 33.4189987182617 dyne/cm; (17)Density: 0.888 g/cm3; (18)Flash Point: 162.369 °C; (19)Enthalpy of Vaporization: 63.841 kJ/mol; (20)Boiling Point: 359.44 °C at 760 mmHg;
Uses of Stearic Acid:
Generally applications of stearic acid exploit its bifunctional character, with a polar head group that can be attached to metal cations and a nonpolar chain that confers solubility in organic solvents. The combination leads to uses as a surfactant and softening agent. Stearic acid undergoes the typical reactions of saturated carboxylic acids, notably reduction to stearyl alcohol, and esterification with a range of alcohols.
Safety information of Stearic Acid:
When you are using this chemical, please be cautious about it as the following: Wear suitable gloves and eye/face protection; In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; Keep away from sources of ignition - No smoking.
You can still convert the following datas into molecular structure:
(1)SMILES:O=C(O)CCCCCCCCCCCCCCCCC;
(2)Std. InChI:InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20); (3)Std. InChIKey:QIQXTHQIDYTFRH-UHFFFAOYSA-N
The toxicity data of Stearic Acid is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intravenous | 23mg/kg (23mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Acta Pharmacologica et Toxicologica. Vol. 18, Pg. 141, 1961. |
| rabbit | LD50 | skin | > 5gm/kg (5000mg/kg) | Food and Cosmetics Toxicology. Vol. 17, Pg. 383, 1979. | |
| rat | LD50 | intravenous | 21500ug/kg (21.5mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Acta Pharmacologica et Toxicologica. Vol. 18, Pg. 141, 1961. |
| rat | LDLo | oral | 4640mg/kg (4640mg/kg) | Journal of the American College of Toxicology. Vol. 6(3), Pg. 321, 1987. |