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557-04-0

Name Magnesium stearate
CAS 557-04-0
EINECS(EC#) 209-150-3
Molecular Formula C36H70MgO4
MDL Number MFCD00036391
Molecular Weight 591.24
MOL File 557-04-0.mol

Chemical Properties

Definition Mg(C18H35O2)2 or with one H2O. Technical grade contains small amounts of the oleate and 7% magnesium oxide, MgO.
Appearance white powder
Melting point  200 °C (lit.)
density  1.028g/cm3
storage temp.  Store at RT.
solubility  alcohol: insoluble
form  Fine Powder
color  White
Odor wh. soft oily powd., tasteless, odorless
PH 7 (H2O) (slurry)
Stability: Stable. Incompatible with strong oxidizing agents.
Water Solubility  Insoluble
Merck  14,5690
BRN  3919702
Exposure limits ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
InChIKey DRJIJXNWSSRTTE-UHFFFAOYSA-M
LogP 8.216 (est)
Uses
Magnesium Stearate is the magnesium salt of stearic acid which functions as a lubricant, binder, emulsifier, and anticaking agent. it is a white powder that is insoluble in water. it is used as a lubricant or die release in tableting pressed candies and is also used in sugar- less gum and mints.
CAS DataBase Reference 557-04-0(CAS DataBase Reference)
EPA Substance Registry System 557-04-0(EPA Substance)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  -
RTECS  WI4390000
TSCA  Yes
HS Code  29157030
Safety Profile
Slightly toxic by ingestion. Spontaneously combustible. When heated to decomposition it emits acrid smoke and toxic fumes.
Hazardous Substances Data 557-04-0(Hazardous Substances Data)

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