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2163-80-6

Name Sodium methylarsonate
CAS 2163-80-6
EINECS(EC#) 218-495-9
Molecular Formula CH4AsO3.Na
MDL Number MFCD00072437
Molecular Weight 161.95
MOL File 2163-80-6.mol

Chemical Properties

Definition The monosodiumsalt of methylarsonic acid.
Appearance Colorless solid or colorless to red or green solution. Odorless. Specific Gravity: (DSMA) 1.0 @ 20C; (MSMA solutions) 1.4°1.6 @ 20°C (liquid);
Melting point  113-116°C
density  1.50
form  solid
Water Solubility  >=10 g/100 mL at 22 ºC
Uses
Postemergence herbicide for grassy weeds.
EPA Substance Registry System Arsonic acid, methyl-, monosodium salt(2163-80-6)

Safety Data

Hazard Codes  Xn,N,T
Risk Statements 
Safety Statements 
RIDADR  UN 1557
RTECS  PA2625000
HazardClass  6.1(b)
PackingGroup  III
Safety Profile
Poison by unspecified route. Moderately toxic by ingestion. A skin and eye irritant. When heated to decomposition it emits toxic fumes of As and Na2O.
Hazardous Substances Data 2163-80-6(Hazardous Substances Data)

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