Stearic acid CAS#57-11-4

CAS Number: 57-11-4
Chemical Formula: C18H36O2
Synonyms:

ACIDUM STEARICUM 50
CETYLACETIC ACID
FEMA 3035

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Stearic acid CAS#57-11-4

Stearic acid is one of several major long-chain fatty acids comprising oils and fats. It is presented in animal fats, oil and some kinds of vegetable oils as wellin the form of glycerides. These oils, after hydrolysis, produce the stearic acid.
Stearic acid is a fatty acid widely existing in nature and has the general chemical properties of carboxylic acids. Almost all kinds of fat and oil contain certain amount of stearic acid with the content in the animal fats being relative high. For example, the content in the butter can reach up to 24% while the content in vegetable oil is relative low with the value in tea oil being 0.8% and the oil in palm being 6%. However, the content in cocoa can reach as high as 34%.

Stearic acid Chemical Properties

Melting point	67-72 °C (lit.)
Boiling point	361 °C (lit.)
density	0.845 g/cm3
bulk density	400-500kg/m3
vapor pressure	1 mm Hg ( 173.7 °C)
refractive index	1.4299
FEMA	3035 \| STEARIC ACID
Fp	>230 °F
storage temp.	Store below +30°C.
solubility	Practically insoluble in water, soluble in ethanol (96 per cent) and in light petroleum (bp: 50-70 °C).
form	powder
pka	pKa 5.75±0.00(H2O t = 35) (Uncertain)
Specific Gravity	0.84 (80℃)
color	White
Odor	odorless mild fatty
Odor Type	odorless
biological source	palm oil
Water Solubility	0.1-1 g/100 mL at 23 ºC
Merck	14,8804
JECFA Number	116
BRN	608585
Dielectric constant	2.3（22℃）
Exposure limits	ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
Cosmetics Ingredients Functions	EMULSION STABILISING SURFACTANT - CLEANSING REFATTING CLEANSING SURFACTANT - EMULSIFYING FRAGRANCE
InChIKey	QIQXTHQIDYTFRH-UHFFFAOYSA-N
LogP	8.22
CAS DataBase Reference	57-11-4(CAS DataBase Reference)
NIST Chemistry Reference	Octadecanoic acid(57-11-4)
EPA Substance Registry System	Stearic acid (57-11-4)

Safety Information

Hazard Codes	Xi,F
Risk Statements	38-36/37/38-11
Safety Statements	37/39-26-16
WGK Germany	3
RTECS	WI2800000
Autoignition Temperature	395 °C
TSCA	TSCA listed
HS Code	38231100
Hazardous Substances Data	57-11-4(Hazardous Substances Data)
Toxicity	LD50 i.v. in mice, rats: 23±0.7, 21.5±1.8 mg/kg, L. Or, A. Wretlind, Acta Pharmacol. Toxicol. 18, 141 (1961)

Product Application of Stearic acid CAS#57-11-4

Stearic acid is widely used in cosmetics, plastics plasticizers, mold release agents, stabilizers, surfactants, rubber vulcanization accelerator, waterproof agent, polishing agent, metal soap, metal mineral flotation agents, softeners and pharmaceuticals as well as other organic chemicals. Stearic acid can also be used as the solvents of oil-soluble paint, crayons lubrication agent, stencil lighting agent and the emulsifier of stearic acid glyceride.
Stearic acid can also be widely used in the manufacturing of PVC pipe, sheet material, profiles and film and is the PVC heat stabilizers with good lubricity and excellent stability against light and heat. In the application of polyvinyl chloride pipe, stearic acid helps prevent the "coke" during the processing and is effective heat stabilizer during PVC film processing while also preventing the discoloration of the finished film discoloration caused by exposure.

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