MOLYBDIC ACID 85%
MSDS Number: M7856 --- Effective Date: 12/08/96
1. Product Identification
Synonyms: Although called molybdic acid, this material consists
primarily of ammonium molybdate (CAS # 12027-67-7, also
called ammonium heptamolybdate)
CAS No.: 7782-91-4
Molecular Weight: 1163.9
Chemical Formula: (NH4)6Mo7O24
Product Codes: J.T. Baker:
0206
Mallinckrodt:
2688
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------- ---------
Molybdic Acid 85% 7782-91-4 90 - 100% Yes
3. Hazards Identification
Emergency Overview
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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: 0 - None
Contact Rating: 2 - Moderate
Lab Protective Equip: GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
Storage Color Code: Orange (General Storage)
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Potential Health Effects
----------------------------------
Hazard information taken from ammonium molybdate (CAS# 12027-67-7) and
molybdenum trioxide (CAS# 1313-27-5). Contains approximately 85% MoO3.
Inhalation:
Inhalation of dust irritates respiratory tract. May cause pulmonary
disorders. Can be a route of absorption by the body with symptoms similar
to 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.
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.
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
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 a full face shield where splashing is
possible. Maintain eye wash fountain and quick-drench facilities in work
area.
9. Physical and Chemical Properties
Appearance:
Fine, white to pale yellow powder.
Odor:
Odorless.
Solubility:
Slightly soluble in water.
Density:
No information found.
pH:
No information found.
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
Not applicable.
Melting Point:
115C (239F)
Vapor Density (Air=1):
No information found.
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
Molybdenum trioxide: Oral rat LD50: 2689 mg/kg; Inhalation rat LC50: >
5840 mg/m3/4-hr; Skin rat LD50: >2000 mg/kg. Investigated as a
tumorigen. Ammonium molybdate: Investigated as a mutagen.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Molybdic Acid 85% (7782-91-4) No No None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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
----------------------------------------------- ---- --- ----- ---------
Molybdic Acid 85% (7782-91-4) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Molybdic Acid 85% (7782-91-4) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Molybdic Acid 85% (7782-91-4) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Molybdic Acid 85% (7782-91-4) 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 (Pure / 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.
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.
Wash thoroughly after handling.
Avoid breathing dust.
Keep container closed.
Use only with adequate ventilation.
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:
Pure. New 16 section MSDS format, all sections have been revised.
Disclaimer:
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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.
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Prepared by: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)