AMMONIUM MOLYBDATE Page 1 of 7
AMMONIUM MOLYBDATE
MSDS Number: A5988 --- Effective Date: 12/08/96
1. Product Identification
Synonyms: Molybdic acid hexammonium salt tetrahydrate; ammonium molybdate tetrahydrate;ammonium
heptamolybdate, tetrahydrate
CAS No.: 12027-67-7
Molecular Weight: 1235.86
Chemical Formula: (NH4)6Mo7O24.4H2O
Product Codes: J.T. Baker: 0716, 0722 Mallinckrodt: 3420
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------- ---------
Hexaammonium Molybdate 12027-67-7 100% Yes
3. Hazards Identification
Emergency Overview
--------------------------
WARNING! MAY BE HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO
SKIN, EYES AND RESPIRATORY TRACT. AFFECTS KIDNEYS AND BLOOD.
J.T. Baker SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 2 - Moderate
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 2 - Moderate
Lab Protective Equip: GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
Storage Color Code: Orange (General Storage)
-----------------------------------------------------------------------------------------------------------
Potential Health Effects
----------------------------------
Inhalation:
Irritant for the upper respiratory system. Pungent taste in mouth and throat, coughing, labored breathing. Can be
a route of absorption by the body with symptoms like ingestion.
Ingestion:
Irritant to the digestive system. Symptoms of sore throat, abdominal pain, nausea may occur. May cause
anemia,gout, headaches, weight loss, joint pain, and liver or kidney damage.
Skin Contact:
Causes irritation to skin. Symptoms include redness, itching, and pain.
Eye Contact:
Causes irritation, redness, and pain.
Chronic Exposure:
Prolonged or repeated exposure to this product may cause symptoms similar to ingestion.
Aggravation of Pre-existing Conditions:
Persons with pre-existing skin disorders, blood disorders or eye problems, or impaired liver, kidney or
respiratory function may be more susceptible to the effects of the substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical
attention.
Ingestion:
Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious
person. Get medical attention.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes.
Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
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Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally.
Get medical attention immediately.
5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard.
Explosion:
Not considered to be an explosion hazard.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire.
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 pressure mode. Water spray may be used to
keep fire exposed containers cool.
6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills:
Pick up and place in a suitable container for reclamation or disposal, using a method that does not generate dust.
7. Handling and Storage
Keep in a tightly closed container. Protect from physical damage. Store in a cool, dry, ventilated area away from
sources of heat, moisture and incompatibilities. Containers of this material may be hazardous when empty since
they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
-OSHA Permissible Exposure Limit (PEL): 5 mg/m3 for soluble molybdenum compounds as Mo 15 mg/m3 for
insoluble molybdenum compounds as Mo -ACGIH Threshold Limit Value (TLV): 5 mg/m3 (TWA) for soluble
molybdenum compounds as Mo 10 mg/m3 for insoluble molybdenum compounds as Mo
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne
Exposure Limits. Local exhaust ventilation is generally preferred because it can control the emissions of the
contaminant at its source, preventing dispersion of it into the general work area. Please refer to the ACGIH
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AMMONIUM MOLYBDATE Page 4 of 7
document, Industrial Ventilation, A Manual of Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved):
If the exposure limit is exceeded, a half-face dust/mist respirator may be worn for up to ten times the exposure
limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier,
whichever is lowest. A full-face piece dust/mist respirator may be worn up to 50 times the exposure limit, or the
maximum use concentration specified by the appropriate regulatory agency, or respirator supplier, whichever is
lowest. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-
pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-
deficient atmospheres.
Skin Protection:
Wear impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to
prevent skin contact.
Eye Protection:
Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. Maintain
eye wash fountain and quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance:
White to yellow-green crystals
Odor:
Odorless.
Solubility:
43 g / 100 cc cold water.
Density:
2.498
pH:
5.0 - 5.5
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
190C (374F) Decomposes.
Melting Point:
90C (194F) Loses 1 water @ this temperature.
Vapor Density (Air=1):
No information found.
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Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
Burning may produce ammonia, nitrogen oxides and metal fumes.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Alkali metals
Conditions to Avoid:
Incompatibles.
11. Toxicological Information
Investigated as a mutagen.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Hexaammonium Molybdate (12027-67-7) No No None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste
disposal facility. Processing, use or contamination of this product may change the waste management options.
State and local disposal regulations may differ from federal disposal regulations. Dispose of container and
unused contents in accordance with federal, state and local requirements.
14. Transport Information
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Hexaammonium Molybdate (12027-67-7) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Hexaammonium Molybdate (12027-67-7) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Hexaammonium Molybdate (12027-67-7) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Hexaammonium Molybdate (12027-67-7) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes Fire: No Pressure: No
Reactivity: No (Mixture / Solid)
Australian Hazchem Code: No information found.
Poison Schedule: No information found.
WHMIS:
This MSDS has been prepared according to the hazard criteria of the Controlled Products Regulations (CPR)
and the MSDS contains all of the information required by the CPR.
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16. Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning:
WARNING! MAY BE HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN,
EYES AND RESPIRATORY TRACT. AFFECTS KIDNEYS AND BLOOD.
Label Precautions:
Avoid contact with eyes, skin and clothing. Avoid breathing dust. Keep container closed. Use only with
adequate ventilation. Wash thoroughly after handling.
Label First Aid:
If swallowed, induce vomiting immediately as directed by medical personnel. Never give anything by mouth to
an unconscious person. In case of contact, immediately flush eyes or skin with plenty of water for at least 15
minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. If inhaled, remove to fresh air.
If not breathing, give artificial respiration. If breathing is difficult, give oxygen. In all cases, get medical
attention.
Product Use:
Laboratory Reagent.
Revision Information:
Mixture. New 16 section MSDS format, all sections have been revised.
Disclaimer:
************************************************************************************************
Mallinckrodt Baker, Inc. provides the information contained herein in good faith but makes no
representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the
appropriate precautionary handling of the material by a properly trained person using this product.
Individuals receiving the information must exercise their independent judgment in determining its
appropriateness for a particular purpose. MALLINCKRODT BAKER, INC. MAKES NO
REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING
WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR
THE PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, MALLINCKRODT
BAKER, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR
RELIANCE UPON THIS INFORMATION.
************************************************************************************************
Prepared by: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)
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