Material Safety Data Sheet
Sodium Selenite, Anhydrous, 44-46% se

ACC# 01868
Section 1 - Chemical Product and Company Identification
MSDS Name: Sodium Selenite, Anhydrous, 44-46% se
Catalog Numbers: AC200730000, AC200730250, AC200731000
Disodium Selenite; Selenious Acid
Company Identification:

              Acros Organics N.V.
              One Reagent Lane
              Fair Lawn, NJ 07410
For information in North America, call: 800-ACROS-01
For emergencies in the US, call CHEMTREC: 800-424-9300

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
10102-18-8 Sodium Selenite 100% 233-267-9

Section 3 - Hazards Identification


Appearance: white to light beige crystals.
Danger! May be fatal if swallowed. Poison! Causes eye and skin irritation. May be harmful if absorbed through the skin. Causes digestive and respiratory tract irritation. May cause reproductive and fetal effects.
Target Organs: Kidneys, liver.

Potential Health Effects
Eye: Causes severe eye irritation.
Skin: Causes skin irritation. May be absorbed through the skin in harmful amounts. Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath,
Ingestion: May be fatal if swallowed. Poison by ingestion. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. May cause cardiac abnormalities.
Inhalation: Causes respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema. Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count.
Chronic: May cause reproductive and fetal effects. Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath, Laboratory experiments have resulted in mutagenic effects. Chronic selenium poisoning resembles arsenic poisoning. Nausea, vomiting leukocytosis, white streaks in the nails, loss of hair, skin rashes, irritability, fatigue, hyperflexia, and EKG changes.

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 imme diately.
Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: 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 immediately.
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. 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: Treat symptomatically and supportively.

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.
Extinguishing Media: In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Flash Point: Not available.
Autoignition Temperature: Not available.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 3; Flammability: 0; Instability: 0

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. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Storage: Store in a cool, dry place. Keep container closed when not in use.

Section 8 - Exposure Controls, Personal Protection

Engineering Controls: Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Sodium Selenite 0.2 mg/m3 TWA (as Se) (listed under Selenium compounds). 0.2 mg/m3 TWA (as Se, except Selenium hexafluoride) (listed under Selenium compounds). 0.2 mg/m3 TWA (as Se) (listed under Selenium compounds).

OSHA Vacated PELs: Sodium Selenite: No OSHA Vacated PELs are listed for this chemical.
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 gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - Physical and Chemical Properties

Physical State: Crystals
Appearance: white to light beige
Odor: Odorless
pH: Not available.
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point:710 deg C
Decomposition Temperature:> 300 deg C
Solubility: 950 G/L WATER (20C)
Specific Gravity/Density:3.1 water = 1
Molecular Formula:Na2O3Se
Molecular Weight:172.94

Section 10 - Stability and Reactivity

Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: None reported.
Incompatibilities with Other Materials: None reported.
Hazardous Decomposition Products: Toxic fumes of sodium oxide, selenium/selenium oxides.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information

CAS# 10102-18-8: VS7350000
CAS# 10102-18-8:
     Oral, mouse: LD50 = 7080 ug/kg;
     Oral, rabbit: LD50 = 2250 ug/kg;
     Oral, rat: LD50 = 7 mg/kg;
Tox study: Vinson, J.A. , 1981; Oral, rat: LD50 12.7mg/kg.
CAS# 10102-18-8: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: No data available.
Teratogenicity: Growth statistics, live birth index, viability index, and weaning or lactation index were affected by oral exposure in animals. Fetal effects included the extra-embryonic structures and fetotoxicity were also noted.
Reproductive Effects: Male rat studies showed effects on spermatogenesis and testes/sperm duct/epididymis in inhalation studies.
Mutagenicity: Sodium selenite induced DNA inhibition in human fibroblasts and HeLa cells. Unscheduled DNA synthesis was detected in human fibroblasts, rat liver cells and mouse mammary gland cells.
Neurotoxicity: No data available.
Other Studies:

Section 12 - Ecological Information

No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

Hazard Class: 6.1 6.1
UN Number: UN2630 UN2630
Packing Group: I I

Section 15 - Regulatory Information


     CAS# 10102-18-8 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     CAS# 10102-18-8: 100 lb final RQ; 45.4 kg final RQ
SARA Section 302 Extremely Hazardous Substances
     CAS# 10102-18-8: 100 lb lower threshold TPQ; 10000 lb upper threshold      TPQ
SARA Codes
     CAS # 10102-18-8: immediate, delayed.
Section 313
     This material contains Sodium Selenite (listed as Selenium compounds), 100%, (CAS# 10102-18-8) which is subject to the reporting requirements of Section 313 of SARA Title III and 40 CFR Part 373.
Clean Air Act:
     CAS# 10102-18-8 (listed as Selenium compounds) is listed as a hazardou      s air pollutant (HAP).
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
CAS# 10102-18-8 is listed as a Hazardous Substance under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA. CAS# 10102-18-8 is listed as a Toxic Pollutant under the Clean Water Act.
     None of the chemicals in this product are considered highly hazardous by OSHA.
     CAS# 10102-18-8 can be found on the following state right to know lists: California, New Jersey, Pennsylvania, Massachusetts.

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations

European Labeling in Accordance with EC Directives
Hazard Symbols:
     T N
Risk Phrases:

     R 23/25 Toxic by inhalation and if swallowed.
     R 33 Danger of cumulative effects.
     R 50/53 Very toxic to aquatic organisms, may cause long-term
     adverse effects in the aquatic environment.

Safety Phrases:

     S 20/21 When using do not eat, drink or smoke.
     S 28 After contact with skin, wash immediately with...
     S 45 In case of accident or if you feel unwell, seek medical advice
     immediately (show the label where possible).
     S 60 This material and its container must be disposed of as hazardou
     s waste.
     S 61 Avoid release to the environment. Refer to special instructions
     /safety data sheets.

WGK (Water Danger/Protection)

     CAS# 10102-18-8: 2
Canada - DSL/NDSL
     CAS# 10102-18-8 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of D1A, D2B.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
     CAS# 10102-18-8 (listed as Selenium compounds) is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 9/02/1997
Revision #7 Date: 9/21/2006

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.