NILE
CHEMICALS
Synonyms: Cobalt nitrate hexahydrate 
CAS No.: 10141-05-6 Anhydrous; (10026-22-9 Hexahydrate) 
Molecular Weight: 291.03 
Chemical Formula: Co(NO3)2 6H2O 
Product Codes: 31178
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Nitric Acid, Cobalt(2+) Salt 10141-05-6 90 - 100% Yes
Inhalation: Causes irritation to the respiratory tract, symptoms may 
include coughing, shortness of breath, and nausea. Respiratory hypersensitivity, 
asthma may appear. Inhalation of cobalt dust and fumes is associated with an 
increased incidence of lung disease. 
Ingestion: Toxic. Causes abdominal pain, nausea, vomiting, flushing of 
the face and ears, mild hypotension, rash, and ringing in the ears. May have 
cumulative toxic action where elimination cannot keep pace with absorption. 
Large amounts depress erythrocyte production. 
Skin Contact: Causes irritation to skin. Symptoms include redness, 
itching, and pain. May cause dermatitis. 
Eye Contact: Causes irritation, redness, and pain. 
Chronic Exposure: Repeated oral administration may produce goiter and 
reduced thyroid activity. Prolonged or repeated skin exposure may cause 
dermatitis. Chronic exposure associated with kidney, heart and lung damage. 
Aggravation of Pre-existing Conditions: Persons with pre-existing skin 
disorders or eye problems, or impaired liver, kidney or respiratory function may 
be more susceptible to the effects of the substance. Persons with allergies or 
sensitivity to cobalt may also 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: Wipe off excess material from skin then 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 combustible, but substance is a strong 
oxidizer and its heat of reaction with reducing agents or combustibles may cause 
ignition. 
Explosion: Contact with oxidizable substances may cause extremely violent 
combustion. 
Fire Extinguishing Media: If involved in a fire, use water spray. 
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. Spills:
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage and moisture. Isolate from any source of heat or ignition. Avoid storage on wood floors. Separate from incompatibles, combustibles, organic or other readily oxidizable materials. Wash hands before eating and do not eat, drink, or smoke in workplace. 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: For Cobalt Compound:-OSHA 
Permissible Exposure Limit (PEL):0.1 mg/m3 (TWA) Cobalt metal dust and fume as 
Co
-ACGIH Threshold Limit Value (TLV): inorganic cobalt compounds: 0.02 mg/m3 (TWA) 
as Co, A3: Animal carcinogen. 
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 half-face high efficiency 
particulate respirator (NIOSH type N100 filter) 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 
high efficiency particulate respirator (NIOSH type N100 filter) 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. 
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 protective gloves and clean body-covering clothing.
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: Red crystals. 
Odor: Odorless. 
Solubility: 134g/100ml water. 
Density: 1.87 @ 25C/4c 
pH: No information found. 
% Volatiles by volume @ 21C (70F): 0 
Boiling Point: 75C (167F) 
Melting Point: 55C (131F) 
Vapor Density (Air=1): No information found. 
Vapor Pressure (mm Hg): Negligible. 
Evaporation Rate (BuAc=1): No information found. 
Stability: Stable under ordinary conditions of use 
and storage. 
Hazardous Decomposition Products: Emits nitrous oxides when heated to 
decomposition. 
Hazardous Polymerization: This substance does not polymerize. 
Incompatibilities: Tert-butyl hydroperoxide, ammonium hexacyanoferrate, 
organic substances, and any other readily oxidizable substance (paper, wood, 
sulfur, aluminum, plastics). 
Conditions to Avoid: Incompatibles. 
Toxicological Data: For Cobalt ( Nitrate):
Oral rat LD50: 434 mg/kg. Investigated as a tumorigen and a reproductive 
effector. 
Carcinogenicity: Cobalt and its compounds have been shown to cause cancer 
in laboratory animals. 
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Nitric Acid, Cobalt(2+) Salt No No 2B
(10141-05-6)
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.
Domestic (Land, D.O.T.)
Proper Shipping Name: NITRATES, INORGANIC, N.O.S. (COBALT NITRATE 6 
HYDRATE) 
Hazard Class: 5.1 
UN/NA: UN1477 
Packing Group: II 
Information reported for product/size: 4X25LB 
International (Water, I.M.O.) 
Proper Shipping Name: NITRATES, INORGANIC, N.O.S. (COBALT NITRATE 6 
HYDRATE) 
Hazard Class: 5.1 
UN/NA: UN1477 
Packing Group: II 
Information reported for product/size: 4X25LB 
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Nitric Acid, Cobalt(2+) Salt (10141-05-6) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Nitric Acid, Cobalt(2+) Salt (10141-05-6) Yes Yes No No
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Nitric Acid, Cobalt(2+) Salt (10141-05-6) No No No Cobalt compo
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Nitric Acid, Cobalt(2+) Salt 1 No No
(10141-05-6)
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes Fire: No Pressure: No
Reactivity: Yes (Pure / Solid)
Australian Hazchem Code: 1[T] 
Poison Schedule: None allocated. 
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. 
Disclaimer: 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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