Disodium methylarsonate Property

Melting point:

>355 °C

Boiling point:

165°C

Density 

1.1500

solubility 

Water (Sparingly)

form 

Solid

color 

White to Off-White

Stability:

Hygroscopic

EPA Substance Registry System

Disodium methanearsonate (144-21-8)

Safety

Hazard Codes 

Xn,N,T

Risk Statements 

22-50/53-23/25

Safety Statements 

26-61-60-45-28-20/21

RIDADR 

2759

RTECS 

PA2275000

HazardClass 

6.1(b)

PackingGroup 

III

Hazardous Substances Data

144-21-8(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H331Toxic if inhaled

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P273Avoid release to the environment.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P311Call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P391Collect spillage. Hazardous to the aquatic environment

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

Disodium methylarsonate Chemical Properties,Usage,Production

Chemical Properties

White Solid

Uses

Methylarsonic acid is used as herbicide.

Agricultural Uses

Herbicide, Disodium methylarsonate: Used as a herbicide to control post-emergent grass weeds, including crab grass, in common grass lawns and established turf; for general non-crop weed control in cotton. Not actively registered for use in the U.S. or EU countries. There are 15 global suppliers[97

Trade name

ANSAR® 184; ANSAR 8100®; ANSAR DSMA® Liquid; CHIPCO CRAB KLEEN®; CRAB3-RAD 100®; CRALO-E-RAD®; DAL-E-RAD 100®; DISOMEAR®; DI-TAC®; DMA 100®; JON-TROL®; METHAR®; METHAR 30®; SODAR; SOMAR®; STENOSINE®; TONARSAN®; TONARSIN®; VERSAR DSMA LQ®; WEED BROOM®