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Hexaammonium Molybdate
CAS No.: 12027-67-7
Synonyms:
Formula: H24Mo3N6O12
Exact Mass: 593.86100
Molecular Weight: 588.10400
PSA: 240.78000
LogP: 0.83160
Reference Price: $10,528/ton Inquiry Now
Hexaammonium Molybdate 12027-67-7 MSDS
Name: Ammonium molybdate tetrahydrate certified ACS crystalline Material Safety Data Sheet
Synonym: Ammonium heptamolybdate ((NH4)6Mo7O24) tetrahydrate; Ammonium paramolybdate tetrahydrate; Moybdic acid (H6Mo7O24), hexaammonium salt, tetrahydrate
CAS: 12027-67-7
Section 1 - Chemical Product   MSDS Name:Ammonium molybdate tetrahydrate certified ACS crystalline Material Safety Data Sheet
Synonym:Ammonium heptamolybdate ((NH4)6Mo7O24) tetrahydrate; Ammonium paramolybdate tetrahydrate; Moybdic acid (H6Mo7O24), hexaammonium salt, tetrahydrate

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
12027-67-7 Ammonium molybdate(VI) tetrahydrate 99 unlisted
Hazard Symbols: XN
Risk Phrases: 22

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Harmful if swallowed.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation.
Ingestion:
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
Causes upper respiratory tract irritation. Causes irritation of the mucous membrane.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
  Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Substance is noncombustible.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Wash hands before eating. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Use only with adequate ventilation. Avoid breathing dust.
Storage:
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Exposure Limits CAS# 12027-67-7: United Kingdom, WEL - TWA: (listed as molybdenum soluble compound 5 mg/m3 TWA (as Mo) United Kingdom, WEL - STEL: (listed as molybdenum soluble compoun 10 mg/m3 STEL (as Mo) United States OSHA: 5 mg/m3 TWA (as Mo) (listed under Molybdenum soluble compounds).
Belgium - TWA: (listed as molybdenum soluble compounds): 5 mg/m3 (as Mo) France - VME: (listed as molybdenum soluble compounds): 5 mg/m3 V (as Mo) France - VLE: (listed as molybdenum soluble compounds): 10 mg/m3 (as Mo) Germany: (listed as molybdenum soluble compounds): 5 mg/m3 VME (a Mo) Malaysia: (listed as molybdenum soluble compounds): 5 mg/m3 TWA ( Mo) Netherlands: (listed as molybdenum soluble compounds): 5 mg/m3 MA (as Mo) Russia: (listed as molybdenum soluble compounds): 2 mg/m3 TWA (as Spain: (listed as molybdenum soluble compounds): 5 mg/m3 VLA-ED ( Mo) CAS# 12054-85-2: United Kingdom, WEL - TWA: (listed as molybdenum soluble compound 5 mg/m3 TWA (as Mo) United Kingdom, WEL - STEL: (listed as molybdenum soluble compoun 10 mg/m3 STEL (as Mo) United States OSHA: 5 mg/m3 TWA (as Mo) (listed under Molybdenum soluble compounds).
Belgium - TWA: (listed as molybdenum soluble compounds): 5 mg/m3 (as Mo) France - VME: (listed as molybdenum soluble compounds): 5 mg/m3 V (as Mo) France - VLE: (listed as molybdenum soluble compounds): 10 mg/m3 (as Mo) Germany: (listed as molybdenum soluble compounds): 5 mg/m3 VME (a Mo) Malaysia: (listed as molybdenum soluble compounds): 5 mg/m3 TWA ( Mo) Netherlands: (listed as molybdenum soluble compounds): 5 mg/m3 MA (as Mo) Russia: (listed as molybdenum soluble compounds): 2 mg/m3 TWA (as Spain: (listed as molybdenum soluble compounds): 5 mg/m3 VLA-ED ( Mo) Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Powder
Color: white or yellow
Odor: none reported
pH: Not available.
Vapor Pressure: Not applicable.
Viscosity: Not applicable.
Boiling Point: decomposes
Freezing/Melting Point: 190 deg C
Autoignition Temperature: Not available.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: 2.49
Molecular Formula: (NH4)6Mo7O24.4H2O
Molecular Weight: 1235.86

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation, excess heat.
Incompatibilities with Other Materials:
Strong acids.
Hazardous Decomposition Products:
Nitrogen oxides, ammonia and/or derivatives, oxides of molybdenum.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 12027-67-7: QA5076000 CAS# 12054-85-2 unlisted.
LD50/LC50:
Not available.
Not available.
Oral median lethal dose for daily repeated doses was found to be 333 mg Mo/kg/day (up to 232 days) for ammonium molybdate. This is not an acute oral LD50 value, which is a dose administered once.
Carcinogenicity:
Ammonium molybdate(VI) anhydrous - Not listed by ACGIH, IARC, or NTP.
Ammonium molybdate(VI) tetrahydrate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 22 Harmful if swallowed.
Safety Phrases:
S 22 Do not breathe dust.
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 12027-67-7: 1
CAS# 12054-85-2: 1
Canada
CAS# 12027-67-7 is listed on Canada's DSL List.
CAS# 12027-67-7 is listed on Canada's Ingredient Disclosure List.
CAS# 12054-85-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 12027-67-7 is listed on the TSCA inventory.
CAS# 12054-85-2 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).


SECTION 16 - ADDITIONAL INFORMATION
N/A

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