Product ID:O-PHOSPHOROUS ACID, A246500
MSDS Date:10/29/1991
FSC:6810
NIIN:00N027911
MSDS Number: BNBGF

FISHER SCIENTIFIC

1 REAGENT LANE
FAIR LAWN, NJ 07410
US

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

Info Phone: 201-796-7100

Cage: 1B464

FISHER SCIENTIFIC CO. CHEMICAL MFG DIV

FAIRLAWN, NJ 07410-2802 US

Telephone: 201-796-7100

Cage: 1B464

MOVE CNTNR FROM SPILL AREA. FOR LGE SPILLS, DIKE

RTECS: 9999999ZZ

PEOPLE AWAY. ISOLATE HAZARD AREA AND DENY ENTRY.

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SECURELY, BUT NOT TOO TIGHTLY. GET MD IMMEDIATELY.

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OF PYLORUS THAN STRICTURE OF ESOPHAGUS.

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CHOKING, HDCH, DIZZ, WEAKNESS, HYPOTENSION, & DELAYED

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ARE POSS FOR SEV WEEKS AFTER EXPOS. CONVALESCENCE MAY

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CONT MAY CAUSE SEVERE PAIN & STAINS. BURNS MAY BE

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PRLNGD VAP CONT MAY PRODUCE CONJUNCTIVITIS.

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RPTD/PRLNGD EXPOS TO ACIDIC FUMES MAY CAUSE

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W/COUGH & FREQUENT ATTACKS OF BRONCH PNEUMONIA MAY

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TO OCCUR IN HUMANS.

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EVIDENCE OF CHEM REMAINS (15-20

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NORMAL (30-60 MIN). COVER W/STERILE BANDAGES & GET

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ARTF RESP. MAINTAIN AIRWAY & BLOOD PRESS & GIVE O*2.

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REMOVE CONTAM CLTHG &

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EVIDENCE OF CHEM REMAINS (15-20 MINS). IN CASE OF

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CORROSIVE TO MOST METALS IN THE PRESENCE OF

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PHOSPHONIC ACID; (O-PHOSPHOROUS ACID). (MFR CAS#

CAS: 13598-36-2

RTECS: SZ6475500

Fraction By Weight: 100%

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:EYES:LIQ MAY CAUSE CONJUNCTIVAL
FLUID BUILD-UP (EDEMA) & CORNEAL DISTRUCTION. SYMPTOMS ARE PAIN,
TEARS, BLURRED VISION & PHOTOSENSITIZATION. INGEST:MAY CAUSE SEV,
BURNING IN MOUTH, PHARYNX, ABDO MEN, VOMIT, DIARR OF DARK
PRECIPITATED BLOOD. HYPOTENSION MAY DEVELOP RAPIDLY. DISCOLORATION
MAY BE (EFTS OF OVEREXPOS)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:FOUND AROUND MOUTH & THROAT, ASPHY MAY
OCCUR FROM EDEMA OF GLOTTIS. AFTER INITIAL RECOVERY, ONSET OF FEVER
INDICATES MEDIASTINITIS/PERITONITIS FROM PERFORATION OF
ESOPHAGUS/STOMACH. PATIENT M AY HAVE RIGID ABDOMEN W/OUT
PERFORATION. IF PATIENT RECOVERS, SCAR FORMATION IS MORE APT TO
PRODUCE STRICTURE (ING 3)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INGEST:DO NOT USE GASTRIC LAVAGE/EMESIS. DILUTE ACID IMMED BY
DRINKING LGE AMTS OF WATER/MILK. IF VOMIT PERSISTS ADMIN FLUIDS
RPTDLY, INGESTED ACID MUST BE DILUTED APPROX 100 FOLD TO RENDER IT
HARMLES S TO TISS. MAINATIN AIRWAY & TREAT SHOCK. GET MD ATTN
IMMED. IF VOMIT OCCURS, KEEP HEAD BELOW HIPS TO HELP PVNT ASPIR.
EYES:WASH IMMED W/LGE AMTS OF WATER, OCCASIONALLY LIFTING LIDS,
UNTIL NO (ING 11)

Flash Point:NON-COMBUSTIBLE
Extinguishing Media:DRY CHEM, CO2, WATER SPRAY/REGULAR FOAM. FOR LGE
FIRES, USE WATER SPRAY, FOG OR REGULAR FOAM.
Fire Fighting Procedures:NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP .
MOVE CONTR FROM FIRE AREA IF YOU CAN DO IT W/OUT RISK. APPLY
COOLING WATER TO SIDES OF CONTR THAT ARE (SUPDAT)
Unusual Fire/Explosion Hazard:NEGLIGIBLE FIRE HAZARD WHEN EXPOSED TO
HEAT OR FLAME. MAY BURN BUT DOES NOT IGNITE READILY. MAY IGNITE
COMBUSTIBLES.

Spill Release Procedures:OCCUP SPILL:DO NOT TOUCH SPILLED MATL. STOP
LEAK IF CAN BE DONE W/OUT RISK. FOR SMALL SPILLS, TAKE UP
W/SAND/OTHER ABSORB MATL & PLACE INTO CNTNR FOR LATER DISP. FOR
SMALL DRY SPILLS, W/ CLEAN SHOVEL, PLACE MATL INTO CLEAN, DRY
CONTR & COVER. (ING 17
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:MAY BURN BUT DOES NOT IGNITE READILY.
FLAMMABLE, POISONOUS GASES MAY ACCUMULATE IN TANKS AND HOPPER CARS.
Other Precautions:MAY IGNITE COMBUSTIBLES (WOOD, PAPER, OIL, ETC).

Respiratory Protection:ALL RESP MUST BE NIOSH/MSHA APPROVED. HIGH
LEVELS: APPROVED HIGH EFFECIENCY PARTICULATE RESPIRATOR WITH
FACEPIECE. SUPPLIED AIR RESPIRATOR WITH FULL FACEPIECE, HELMET AND
HOOD. SCBA WITH FULL FACEPIEC E.
Ventilation:PROVIDE LOCAL EXHAUST OR GENERAL DILUTION VENTILATION
SYSTEM.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:CHEM WORK GOGG/FULL LENGTH FCSHLD.
Other Protective Equipment:EMERGENCY EYE WASH AND QUICK DRENCH SHOWER.
APPROPRIATE IMPERVIOUS CLOTHING TO PREVENT SKIN CONTACT.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
PH:ACIDIC IN SOLUTION. FIRE FIGHT PROC: EXPOSED TO FLAMES UNTIL WELL
AFTER FIRE IS OUT. STAY AWAY FROM ENDS OF TANK. DO NOT USE WATER
DIRECTLY ON MATERIAL. IF LARGE AMOUNTS OF COMBUSTIBLE MATERIALS AR
E INVOLVED, USE WATER SPRAY/FOG IN FLOODING AMTS . AVOID BRTHG
CORROSIVE DUSTS & FUMES FROM BURNING MATL. KEEP UPWIND.

HCC:C2
Boiling Pt:B.P. Text:392F,200C
Melt/Freeze Pt:M.P/F.P Text:165F,74C
Spec Gravity:1.7
pH:SUPDAT
Solubility in Water:30%
Appearance and Odor:WHITE OR YELLOWISH HYGROSCOPIC CRYSTALLINE MASS.

Stability Indicator/Materials to Avoid:YES
VIOLENT RXN W/BASES &/OR OXIDIZERS. REACTS EXOTHERMICALLY W/WATER. CONT
W/ACETIC ACID RELS FLAMM PHOSPHINE. (ING 2)
Stability Condition to Avoid:FLAMMABLE, POISONOUS GASES MAY ACCUMULATE
IN TANKS AND HOPPER CARS.
Hazardous Decomposition Products:THERMAL DECOMP PROD INCLUDE HIGHLY
TOXIC OXIDES OF PHOSHOROUS, FLAMM HYDROGEN AND PHOSPHINE GASES.

Waste Disposal Methods:DISPOSAL MUST BE IN ACCORDANCE WITH LOCAL, STATE
AND FEDERAL REGULATIONS .

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.