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Stearic acid Structure

Stearic acid

Product NameStearic acid

CAS57-11-4

CBNumberCB4853859

MFC18H36O2

MW284.48

EINECS266-928-5

MDL NumberMFCD00002752

MOL File57-11-4.mol

MSDS FileSDS

Chemical Properties

Melting point 67-72 °C (lit.)
Boiling point 361 °C (lit.)
Density  0.845 g/cm3
vapor pressure  1 mm Hg ( 173.7 °C)
FEMA  3035 | STEARIC ACID
refractive index  1.4299
Flash point >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).
pka pKa 5.75±0.00(H2O t = 35) (Uncertain)
form  powder
color  White
Specific Gravity 0.84 (80℃)
Water Solubility  0.1-1 g/100 mL at 23 ºC
JECFA Number 116
Merck  14,8804
BRN  608585
Exposure limits ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
InChIKey QIQXTHQIDYTFRH-UHFFFAOYSA-N
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

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P280a-P304+P340-P305+P351+P338-P405-P501a
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  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)
NFPA 704:
1
1 0

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