MALLINCKRODT, INC., SCIENCE PRODUCTS DIVISION -- TUNGSTIC ACID -- - 
=====================  Product Identification  =====================

Product ID:TUNGSTIC ACID
MSDS Date:07/13/1987
FSC:NIIN:Submitter:N EN
Status Code:A
=== Responsible Party ===
Company Name:MALLINCKRODT, INC., SCIENCE PRODUCTS DIVISION
Box:M
City:PARIS
State:KY
ZIP:43061
Country:US
Info Phone Num:314- 982-5000
Emergency Phone Num:(314) 982-5000
Resp. Party Other MSDS Num.:STICA
CAGE:TO713
=== Contractor Identification ===
Company Name:MALLINCKRODT, INC., SCIENCE PRODUCTS DIVISION
Box:M
City:PARIS
State:KY
ZIP:43061
Country:US
Phone:314-982-5000
CAGE:TO713

=============  Composition/Information on Ingredients  =============

Ingred Name:TUNGSTIC ACID.  (SYNONYMS: ORTHOTUNGSTIC ACID, WOLFRAMIC
    ACID. CHEMICAL FORMULA: H2WO4. MOLECULAR WEIGHT: 249.86)
CAS:11105-11-6
RTECS #:YO7840000
ACGIH TLV:5MG(W)/M3
ACGIH STEL:10MG(W)/M3

=====================  Hazards Identification  =====================

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:WARNING: MAY BE HARMFUL IF SWALLOWED
    OR INHALED. CAUSES EYE IRRITATION. CHRONIC INHALATION HAZARD. 
    INHALATION: MAY CAUSE IRRITATION TO THE RESPIRATORY TRACT. HIGHER
    CONCENTRATIONS OR PROLONGED INHALA TION MAY CAUSE PULMONARY
    FIBROSIS.  INGESTION: MAY CAUSE GASTROINTESTINAL DISTURBANCES INCL
    DIARRHEA. DEATH MAY OCCUR FROM RESPIRATORY ARREST.	SKIN CONTACT:
    MAY CAUSE IRRITATION.  EYE CONTACT: MAY CA USE SEVERE IRRITATION,
    REDNESS, AND PAIN.	CHRONIC EXPOSURE: PROLONGED OR REPEATED
    INHALATION OF TUNGSTEN SALTS MAY CAUSE PULMONARY FIBROSIS.
    PROLONGED OR REPEATED SKIN EXPOSURE OF TUNGSTEN SALTS MAY  CAUSE
    DERMATITIS & OTHER SKIN DISORDERS.
Effects of Overexposure:SEE HEALTH HAZARDS .
Medical Cond Aggravated by Exposure:NO INFORMATION FOUND.

=======================  First Aid Measures  =======================

First Aid:INHALATION: REMOVE TO FRESH AIR. GET MEDICAL ATTENTION FOR
    ANY BREATHING DIFFICULTY.  INGESTION: IF SWALLOWED, GIVE WATER OR
    MILK TO DRINK. GET MEDICAL ATTENTION IMMEDIATELY. NEVER GIVE
    ANYTHING BY MO UTH TO AN UNCONSCIOUS PERSON.  SKIN EXPOSURE: REMOVE
    ANY CONTAMINATED CLOTHING. WASH SKIN WITH PLENTY OF WATER FOR AT
    LEAST 15 MINUTES. IF IRRITATION DEVELOPS, GET MEDICAL ATTENTION. 
    EYE EXPOSURE: WA SH EYES WITH PLENTY OF WATER FOR AT LEAST 15
    MINUTES, LIFTING LOWER AND UPPER EYELIDS OCCASIONALLY.  GET MEDICAL
    ATTENTION IMMEDIATELY.

=====================  Fire Fighting Measures  =====================

Extinguishing Media:USE ANY MEANS SUITABLE FOR EXTINGUISHING
    SURROUNDING FIRE.
Fire Fighting Procedures:SPECIAL INFORMATION: IN THE EVENT OF A FIRE,
    WEAR FULL PROTECTIVE CLOTHING AND NIOSH-APPROVED SELF-CONTAINED
    BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN THE PRESSURE
    DEMAND OR OTHER POSITIVE P RESSURE MODE.
Unusual Fire/Explosion Hazard:FIRE: NOT CONSIDERED TO BE A FIRE HAZARD.
     EXPLOSION: NOT CONSIDERED TO BE AN EXPLOSION HAZARD.

==================  Accidental Release Measures  ==================

Spill Release Procedures:VENTILATE AREA OF LEAK OR SPILL. CLEAN-UP
    PERSONNEL MAY REQUIRE RESPIRATORY PROTECTION FROM DUST.  SPILLS:
    SWEEP UP AND CONTAINERIZE FOR RECLAMATION OR DISPOSAL. VACUUMING OR
    WET SWEEPING MAY BE USED  TO AVOID DUST DISPERSAL.

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORAGE: KEEP IN A TIGHTLY SEALED
    CONTAINER, STORED IN A COOL,  DRY,	VENTILATED AREA. HANDLING:
    PROTECT AGAINST PHYSICAL DAMAGE.
Other Precautions:AVOID CONTACT WITH EYES.  WASH THOROUGHLY AFTER
    HANDLING.  AVOID BREATHING DUST.  KEEP CONTAINER CLOSED.  USE WITH
    ADEQUATE VENTILATION.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:IF THE TLV IS EXCEEDED, A (NIOSH APPROVED) DUST
    / MIST RESPIRATOR WITH CHEMICAL GOGGLES MAY BE WORN, IN GENERAL, UP
    TO TEN TIMES THE TLV. CONSULT RESPIRATOR SUPPLIER FOR LIMITATIONS.
    ALTERNATIVELY, A  SUPPLIED AIR FULL FACEPIECE RESPIRATOR OR
    AIRLINED HOOD MAY BE WORN.
Ventilation:A SYSTEM OF LOCAL AND/OR GENERAL EXHAUST IS RECOMMENDED TO
    KEEP EMPLOYEE EXPOSURES BELOW THE AIRBORNE EXPOSURE LIMITS. LOCAL
    EXHAUST VENTILATION (OTHER INFO)
Protective Gloves:WEAR PROTECTIVE GLOVES.
Eye Protection:USE CHEMICAL SAFETY GOGGLES. CONTACT LENSES SHOULD NOT
    (SUPP SAFETY & HEALTH)
Other Protective Equipment:WEAR CLEAN BODY-COVERING CLOTHING.  MAINTAIN
    EYE WASH FOUNTAIN AND QUICH-DRENCH FACILITIES IN WORK AREA.
Supplemental Safety and Health
EYE PROTECTION (CONT): BE WORN WHEN WORKING WITH THIS MATERIAL.

==================  Physical/Chemical Properties  ==================

Boiling Pt:=1473.C, 2683.4F
Melt/Freeze Pt:M.P/F.P Text:LOSES WATER @ 100C.
Vapor Pres:NO INFO FOUND.
Vapor Density:NO INFO.
Spec Gravity:5.5
Evaporation Rate & Reference:NO INFO FOUND.
Solubility in Water:INSOLUBLE
Appearance and Odor:YELLOW POWDER, SLIGHT SULFUR-LIKE ODOR.

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
NO INCOMPATIBILITY DATA FOUND.
Stability Condition to Avoid:STABLE UNDER NORMAL CONDITIONS OF USE AND
    STORAGE.
Hazardous Decomposition Products:TUNGSTEN OXIDE FUMES.

===================  Toxicological Information	===================

Toxicological Information:NO LD50/LC50 INFORMATION FOUND RELATING TO
    NORMAL ROUTES OF OCCUPATIONAL EXPOSURE.  IRRITATION DATA: EYE
    RABBIT 500MG/24H SEVERE.  AIRBORNE EXPOSURE LIMITS: ACGIH THRESHOLD
    LIMIT VALUE (TLV): 5 MG(W)/ M3 (TWA).  10 MG(W)/M3 (STEL) FOR
    INSOLUABLE COMPOUNDS.

====================  Disposal Considerations  ====================

Waste Disposal Methods:DISPOSAL: WHATEVER CANNOT BE SAVED FOR
    RECLAMATION MAY BE DELIVERED TO AN APPROVED WASTE DISPOSAL
    FACILITY.  ENSURE COMPLIANCE WITH LOCAL, STATE AND FEDERAL
    REGULATIONS.

===================  MSDS Transport Information  ===================

Transport Information:DOT HAZARD CLASS: NOT REGULATED.

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