Product ID:METHAR 30
MSDS Date:02/25/1993
FSC:6850
NIIN:00N042260
MSDS Number: BSTDN

Emergency Phone: 201-247-8000

Info Phone: 201-247-8000

Cage: IO460

Telephone: 201-247-8000

Cage: IO460

METHANEARSONIC ACID, DISODIUM SALT; (DISODIUM

CAS: 144-21-8

RTECS: PA2275000

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:NO Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:SKIN IRRITATION.
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INGEST:CALL MD IMMEDIATELY . INHAL: REMOVE TO FRESH AIR.
SUPPORT BREATHING (GIVE O2/ARTF RESP) . EYES: IMMEDIATELY FLUSH
W/POTABLE WATER FOR A MINIMUM OF 15 MINUTES, SEEK ASSISTANCE FROM M
D . SKIN:FLUSH EXPOSED AREA W/COPIOUS AMOUNTS OF WATER.

Flash Point:DOES NOT BURN
Extinguishing Media:MEDIA SUITABLE FOR SURROUNDING FIRE .
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA & FULL
PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE

Spill Release Procedures:FLUSH WITH WATER.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:KEEP FROM FREEZING.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

Respiratory Protection:USE NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE
FOR EXPOSURE OF CONCERN . NONE REQUIRED.
Ventilation:NONE REQUIRED.
Protective Gloves:RUBBER OR NEOPRENE GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:APRON OR GOWN.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
HMIS(LEVIEN) NOTES THAT THE ORAL LD50 (RAT) DISODIUM METHANEARSONATE IS
821MG/KG. SPEC GRAV:1.10-1.12 (H2O=1). VAP DENS:SAME AS WATER.

HCC:T6
Boiling Pt:B.P. Text:218F,103C
Vapor Pres:23 @ 77F
Vapor Density:SUPP DATA
Spec Gravity:SUPP DATA
Evaporation Rate & Reference:1 (WATER=1)
Appearance and Odor:TRANSPARENT LIQUID; ODORLESS.
Percent Volatiles by Volume:90

Stability Indicator/Materials to Avoid:YES
ALCOHOLS - PRECIPITATION OF DSMA.
Hazardous Decomposition Products:NONE

Waste Disposal Methods:DISPOSE OF I/A/W FEDERAL, STATE &/OR LOCAL LAWS.

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This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.