Stearic acidCAS#57-11-4

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

Exposure limits

ACGIH: TWA 10 mg/m3; TWA 3 mg/m3

Dielectric constant

2.3（22℃）

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

Risk Statements 

38-36/37/38-11

Safety Statements 

37/39-26-16

WGK Germany 

3

RTECS 

WI2800000

Autoignition Temperature

395 °C

TSCA 

Yes

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)