NILE
CHEMICALS
CAS No.: 7631-95-0 (Anhydrous); 10102-40-6 (Dihydrate) 
Molecular Weight: 241.95 
Chemical Formula: Na2MoO4 . 2H2O 
Product Codes:  191163 
Ingredient CAS No Percent Hazardous
------------------ ------------ ------------ ---------
Sodium Molybdate 7631-95-0 99 - 100% No
Inhalation: Causes irritation to the respiratory tract. Symptoms may 
include coughing, shortness of breath. Can be route for absorption of soluble 
salts of molybdenum. 
Ingestion: Moderately toxic because of solubility. Large doses cause 
severe distress; cramping, vomiting, and hypertension. 
Skin Contact: Can be irritating to wet skin causing a rash which is 
difficult to heal. 
Eye Contact: Irritant to soft tissues. Acts as a sensitizer. 
Chronic Exposure: No specific information found. Molybdenum is rapidly 
excreted from the body. Persons exposed for long periods suffer from anemia. 
Aggravation of Pre-existing Conditions: Persons with pre-existing skin 
disorders or eye problems or impaired respiratory function may be more 
susceptible to the effects of the substance. 
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. 
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. 
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8.
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.
Airborne Exposure Limits: -OSHA Permissible Exposure 
Limit (PEL):5 mg/m3 for soluble molybdenum compounds as Mo15 mg/m3 total dust, 
for insoluble molybdenum compounds as Mo-ACGIH Threshold Limit Value (TLV):Molybdenum, 
metal and insoluble compounds, inhalable fraction, as Mo: 10 mg/m3 Molybdenum, 
metal and insoluble compounds, respirable fraction, as Mo: 3 mg/m3 
Molybdenum, soluble compounds, respirable fraction, as Mo: 0.5 mg/m3, A3 - 
Confirmed animal carcinogen with unknown relevance to humans 
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 
and engineering controls are not feasible, a full facepiece particulate 
respirator (NIOSH type N100 filters) may be worn for up to 50 times the exposure 
limit or the maximum use concentration specified by the appropriate regulatory 
agency or respirator supplier, whichever is lowest. If oil particles (e.g. 
lubricants, cutting fluids. glycerine, etc.) are present, use a NIOSH type R or 
P filter. 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. 
Appearance: Small white scales or flakes. 
Odor: Odorless. 
Solubility: 84 g/100 g water @ 100C (212F) 
Specific Gravity: 3.28 @ 18C (64.4F) 
pH: No information found. 
% Volatiles by volume @ 21C (70F): 0 
Boiling Point: Not applicable. 
Melting Point: 687C (1269F) 
Vapor Density (Air=1): No information found. 
Vapor Pressure (mm Hg): No information found. 
Evaporation Rate (BuAc=1): No information found. 
Stability: Stable under ordinary conditions of use 
and storage. 
Hazardous Decomposition Products: Toxic metal fumes may form when heated 
to decomposition. 
Hazardous Polymerization: Will not occur. 
Incompatibilities: Incompatible with alkali metals, most common metals 
and oxidizing agents. Explodes on contact with molten magnesium. Violent 
reaction with interhalogens (e.g., bromine pentafluoride; chlorine trifluoride). 
Incandescent reaction with hot sodium, potassium or lithium. 
Conditions to Avoid: Moisture, heat, flames, ignition sources and 
incompatibles. 
   Hydrate: Investigated as a reproductive effector. 
Anhydrous: Oral rat LD50: 4 gm/kg;
   Inhalation rat LC50: > 2080 mg/m3/4H. Investigated as a mutagen, reproductive 
effector. 
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sodium Molybdate (7631-95-0) No No None
Environmental Fate: No information found. 
Environmental Toxicity: No information found. 
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.
Not regulated.
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Sodium Molybdate (7631-95-0) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Sodium Molybdate (7631-95-0) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sodium Molybdate (7631-95-0) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Sodium Molybdate (7631-95-0) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: No Fire: No Pressure: No
Reactivity: No (Pure / Solid)
Nile Chemicals. 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. Nile 
Chemicals. 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, NILE CHEMICALS WILL NOT BE 
RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.
 
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