Product ID:SODIUM HYPOPHOSPHITE MONOHYDRATE,S 321-500
MSDS Date:11/11/1998
FSC:6810
NIIN:00-961-9053
MSDS Number: CHVWT

Emergency Phone: 201-796-7100/800-424-9300(CHEMTREC)

Info Phone: 201-796-7100 OR 201-796-7523

Cage: 1B464

Telephone: 201-796-7100

Cage: 1B464

SODIUM HYPOPHOSPHITE MONOHYDRATE

CAS: 10039-56-2

LD50 LC50 Mixture:LD50 (ORAL, RAT) 7640 MG/KG
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGAN:EYE, SKIN, RESPIRATORY &
GASTROINTESTINAL TRACTS. ACUTE- EYES/SKIN:MAY CAUSE IRRITATION.
INHALE:CAUSES RESPIRATORY TRACT IRRITATION. ORAL:MAY CAUSE
GASTROINTESTINAL IRRITATION. THE TOXICO LOGICAL PROPERTIES OF THIS
SUBSTANCE HAVE NOT BEEN FULLY INVESTIGATED. CHRONIC- UNKNOWN.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, TEARING, COUGHING
Medical Cond Aggravated by Exposure:PERSONS WITH PRE-EXISTING SKIN
DISORDERS, EYE PROBLEMS OR IMPAIRED RESPIRATORY FUNCTION MAY BE
MORE SUSCEPTIBLE TO THE EFFECTS OF THIS PRODUCT.

First Aid:GET MEDICAL HELP IF SYMPTOMS PERSIST. INHALED:MOVE TO FRESH
AIR. PROVIDE CPR/OXYGEN IF NEEDED. EYES:IMMEDIATELY FLUSH WITH
WATER FOR 15 MINUTES, HOLDING EYELIDS OPEN. SKIN:WASH WITH SOAP &
PLENTY OF W ATER. ORAL:IF CONSCIOUS, DRINK 2-4 CUPFULS OF
MILK/WATER. SEEK MEDICAL AID. NOTE TO PHYSICIAN: TREAT
SYMPTOMATICALLY AND SUPPORTIVELY.

Flash Point:NONE
Lower Limits:NOT RELEVANT
Upper Limits:NOT RELEVANT
Extinguishing Media:FOR SMALL FIRE USE CARBON DIOXIDE, WATER SPRAY,
CHEMICAL FOAM.
Fire Fighting Procedures:AS WITH ANY FIRE, WEAR PROTECTIVE CLOTHING AND
NIOSH-APPROVED SELF-CONTAINED BREATHING APPARATUS TO AVOID
INHALATION OF HAZARDOUS DECOMPOSTION PRODUCTS OR SMOKE
Unusual Fire/Explosion Hazard:POWDERED MATERIAL MAY FORM EXPLOSIVE
DUST-AIR MIXTURES. FIRE OR HIGH TEMPERATURES CAN CAUSE
DECOMPOSITION FORMING FLAMMABLE AND TOXIC PHOSPHINE GAS.

Spill Release Procedures:VACUUM OR SWEEP UP SPILL. AVOID CREATING DUST.
PLACE IN APPROPRIATE CONTAINER FOR DISPOSAL. VENTILATE AREA.
Neutralizing Agent:NOT RELEVANT

Handling and Storage Precautions:STORE IN COOL, DRY PLACE AWAY FROM
STRONG OXIDIZING AGENTS. KEEP CONTAINER TIGHTLY CLOSED. USE IN
VENTILATED AREA.
Other Precautions:DO NOT RAISE DUST. AVOID CONTACT WITH EYES, SKIN OR
CLOTHING. AVOID INHALATION OF DUST. WASH THOROUGHLY AFTER HANDLING
MATERIAL. KEEP OUT OF REACH OF SMALL CHILDREN. DO NOT INGEST.

Respiratory Protection:NONE NORMALLY REQUIRED. IF AIRBORNE
CONCENTRATION IS HIGH, WEAR A NIOSH-APPROVED DUST RESPIRATOR OR
DUST MASK.
Ventilation:GOOD GENERAL VENTILATION IS SUFFICIENT FOR MOST CONDITIONS
(10 ROOM VOLUMES PER HOUR).
Protective Gloves:RUBBER
Eye Protection:SAFETY GLASSES WITH SIDE SHIELD/GOGGLES
Other Protective Equipment:EYE WASH STATION, SAFETY SHOWER, PROTECTIVE
CLOTHING AND/OR UNIFORM
Work Hygienic Practices:OBSERVE GOOD INDUSTRIAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES. WASH BEFORE EATING OR DRINKING.
Supplemental Safety and Health

HCC:N1
NRC/State Lic Num:NOT RELEVANT
Melt/Freeze Pt:=90.C, 194.F
Decomp Temp:>90.C, 194.F
Vapor Pres:NEGLIGIBLE
Spec Gravity:0.8
Viscosity:NOT RELEVANT
Evaporation Rate & Reference:NOT RELEVANT
Solubility in Water:SOLUBLE
Appearance and Odor:WHITE SOLID - ODORLESS

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS
Stability Condition to Avoid:EXCESSIVE HEAT, MOISTURE
Hazardous Decomposition Products:PHOSPHINE, SODIUM OXIDE, HYDROGEN GAS

Waste Disposal Methods:THE POWDER MAY BE BURIED IN A SANITARY LANDFILL
IF PERMITTEDD. ENSURE COMPLIANCE WITH LOCAL, STATE AND FEDERAL
REGULATIONS.

Ecological:NO INFORMATION AVAILABLE.

SARA Title III Information:SECTION 302 (RQ): NONE OF THE CHEMICALS IN
THIS MATERIAL HAVE AN RQ. SECTION 313: NO CHEMICALS ARE REPORTABLE
UNDER SECTION 313.
Federal Regulatory Information:TSCA: CAG# 10039-56-2 IS NOT LISTED ON
THE TSCA INVENTORY.
State Regulatory Information:SODIUM HYPOPHOSPHITE MONOHYDRATE IS NOT
PRESENT ON STATE FROM CA, PA, MN, MA, FL, OR NJ.

Disclaimer (provided with this information by the compiling agencies):
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.