Product ID:AMMONIUM PARA-MOLYBDATE TETRAHYDRATE, A674500
MSDS Date:03/27/1992
FSC:6810
NIIN:00-247-0603
MSDS Number: CBQGZ

FISHER SCIENTIFIC CHEMICAL

1 REAGENT LN
FAIR LAWN, NJ 07410
US

Emergency Phone: 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

MOLYBDIC ACID AMMONIUM CRYSTALLINE; (AMMONIUM

CAS: 12054-85-2

OSHA PEL N/K

ACGIH TLV: N/K

IN BREAST MILK. THE BODY LEVELS OF COPPER, SULFUR &

RTECS: 9999999ZZ

OCCAS LIFTING UPPER & LOWER LIDS UNTIL NO

RTECS: 9999999ZZ

TREAT SYMP & SUPPORTIVELY. GET

RTECS: 9999999ZZ

NO SPECIFIC

RTECS: 9999999ZZ

CONTAM LEVELS FOUND IN WORK PLACE, MUST NOT

RTECS: 9999999ZZ

ANY DUST & MIST RESP. 50 MG(MO)/M3

RTECS: 9999999ZZ

RESPS. ANY SUPPLIED-AIR RESP. ANY SCBA. 125

RTECS: 9999999ZZ

FILTER. ANY SUPPLIED-AIR RESP OPERATED IN CONTINUOUS

RTECS: 9999999ZZ

FACEPIECE RESP W/HIGH-EFFICIENCY PARTICULATE FILTER.

RTECS: 9999999ZZ

FACEPIECE & HIGH-EFFICIENCY PARTICULATE FILTER. ANY

RTECS: 9999999ZZ

& IS OPERATED IN CONTINUOUS FLOW MODE. ANY SCBA

RTECS: 9999999ZZ

ANY SUPPLIED-AIR RESP THAT HAS FULL

RTECS: 9999999ZZ

ANY AIR-PURIFYING,

RTECS: 9999999ZZ

APPROP ESCAPE-TYPE SCBA.

RTECS: 9999999ZZ

LD50 LC50 Mixture:LD50: (ORAL, RAT) 333 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: INHAL: MAY CAUSE IRRIT OF RESP
TRACT. SKIN/EYES: MAY CAUSE IRRIT. INGEST: NO DATA AVAIL. CHRONIC:
INHAL: RPTD EXPOS OF MICE TO SEVERAL MOLYBDENUM CMPDS PRDCED
INJURIOUS EFTS. SKIN: AMONG CHEMIS TS HNDLG SOLNS OF MOLYBDENUM &
TUNGSTEN, THERE WAS HIGH INCIDENCE OF GOUT. EYES: NO DATA AVAIL.
INGEST:(EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ: IN ANIMALS, LG DOSES HAVE CAUSED
DYSPNEA, ANOREXIA, COLIC, TREMBLING & INCOORDINATION. LISTLESSNESS,
ANEMIA & DEFORMITIES OF FORELEGS WERE REPORTED. THERE IS A
CORRELATION BETWEEN MOLYBDENUM CONC IN FOOD & INCIDENCES OF
ELEVATED XANTHINE OXIDASE ACTIVITY, GOUT & URICEMIA. IN ANIMALS,
MOLYBDENUM MAY (SUPDAT)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INHAL: REMOVE FROM EXPOS AREA TO FRESH AIR IMMED. IF BRTHG
HAS STOPPED, PERFORM ARTF RESP. KEEP PERSON WARM & AT REST. TREAT
SYMP & SUPPORTIVELY. GET MED ATTN IMMED. SKIN: REMOVE CONTAMD CLTHG
& SHOES IMMED. WASH AFFECTED AREA W/SOAP OR MILD DETERGENT & LG
AMTS OF WATER UNTIL NO EVID OF CHEM REMAINS (APPROX 15-20 MIN). GET
MED ATTN IMMED. EYES: WASH IMMED W/LG AMTS OF WATER/NORM SALINE,
(ING 3)

Extinguishing Media:EXTINGUISH USING AGENT SUITABLE FOR TYPE OF
SURROUNDING FIRE.
Fire Fighting Procedures:USE NIOSH APPRVD SCBA & FULL PROTECTIVE
EQUIPMENT . NO ACUTE HAZARD. MOVE CNTNR FROM FIRE AREA IF POSSIBLE.
AVOID BREATHING VAPS/DUSTS; KEEP UPWIND.
Unusual Fire/Explosion Hazard:NEGLIGIBLE FIRE HAZARD WHEN EXPOSED TO
HEAT OR FLAME.

Spill Release Procedures:SWEEP UP AND PLACE IN SUITABLE CLEAN, DRY
CONTAINERS FOR RECLAMATION OR LATER DISPOSAL. DO NOT FLUSH SPILLED
MATERIAL INTO SEWER. KEEP UNNECESSARY PEOPLE AWAY.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:STORE AWAY FROM INCOMPATIBLE
SUBSTANCES.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

Respiratory Protection:FOLLOWING RESPS & MAX USE CONCS ARE RECOMS BY US
DEPT OF HLTH & HUMAN SERVICES, NIOSH POCKET GUIDE TO CHEM HAZS;
NIOSH CRITERIA DOCUMENTS OR US DEPARTMENT OF LABOR, 29 CFR 1910
SUBPART Z. SPECIFIC RES P SELECTED MUST BE BASED ON (ING 6)
Ventilation:PROVIDE LOCAL EXHAUST VENTILATION SYSTEM TO MEET PUBLISHED
EXPOSURE LIMITS.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:ANSI APPRVD EYE WASH & DELUGE SHOWER APPROP
PROT (IMPERVIOUS) CLTHG & EQUIP TO PVNT RPTD/PRLNGD CNTCT
W/SUBSTANCE.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
BP: 374F,190C (DECOMPOSES). VP: NEGLIG @ 20C. MP: LOSES H*2O 194F,90C.
PH: 5-5.5 @ 5% SOLN. EFTS OF OVEREXP: INTERFERE W/COPPER
METABOLISM. TARGET EFTS:POISONING MAY AFFECT BLOOD, LIVER &
KIDNEYS. AT INCRD RISK FROM EXPOS:PERS W/PRE-EXISTING RESP, KIDNEY
OR BLOOD DISORDERS OR GOUT. ADDNL DATA: MAY BE EXCRETED (ING 2)

Boiling Pt:B.P. Text:SUPDAT
Melt/Freeze Pt:M.P/F.P Text:SUPDAT
Decomp Temp:Decomp Text:374F,190C
Vapor Pres:SUPDAT
Vapor Density:2.5
Spec Gravity:2.498
pH:SUPDAT
Solubility in Water:43% (COLD)
Appearance and Odor:ODORLESS, COLORLESS TO WHITE TO YELLOW-GREEN
MONOCLINIC CRYSTALS.
Percent Volatiles by Volume:0 @21C

Stability Indicator/Materials to Avoid:YES
ACIDS (STRONG): INCOMPATIBLE.
Stability Condition to Avoid:STABLE UNDER NORMAL TEMPERATURES AND
PRESSURES.
Hazardous Decomposition Products:THERMAL DECOMPOSITION PRODUCTS MAY
INCLUDE TOXIC AND CORROSIVE FUMES OF AMMONIA AND TOXIC OXIDES OF
NITROGEN.

Waste Disposal Methods:OBSERVE ALL FEDERAL, STATE AND LOCAL REGULATIONS
WHEN STORING OR DISPOSING OF THIS SUBSTANCE. FOR ASSISTANCE,
CONTACT THE DISTRICT DIRECTOR OF THE ENVIRONMENTAL PROTECTION
AGENCY.

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.