Synonyms: Selenious Acid, Disodium Salt, n-hydrate; Sodium Selenite, n-hydrate
CAS No.: 10102-18-8 (Anhydrous)
Molecular Weight: 332.01
Chemical Formula: Na2SeO3 . nH2O
Product Codes: V036
Ingredient CAS No Percent Hazardous --------------------------------------- ------------ ------------ --------- Sodium Selenite 10102-18-8 97 - 100% Yes
Emergency Overview
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POISON! DANGER! MAY BE FATAL IF SWALLOWED. HARMFUL IF INHALED. CAUSES SEVERE IRRITATION TO SKIN AND EYES. CAUSES IRRITATION TO RESPIRATORY TRACT. AFFECTS LIVER, KIDNEYS, BLOOD, SPLEEN.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 3 - Severe (Poison)
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: Blue (Health)
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Potential Health Effects
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Acute toxicity of soluble selenium compounds is high. A general tissue poison like arsenic, presumably attacking sulfhydryl enzymes.
Inhalation:
Irritant to the respiratory system. Soreness, coughing, labored breathing are symptoms which may subside and return. Lung edema may occur in acute cases. Cases with flu-like symptoms resembling metal fume fever within 24 hours of exposure have been reported.
Ingestion:
Toxic. May be fatal if swallowed. May cause severe stomach problems.
Skin Contact:
Causes severe irritation. Symptoms include redness, itching and pain.
Eye Contact:
May cause severe irritation, redness, pain.
Chronic Exposure:
Chronic selenium intoxication may cause depression, nervousness, dermatitis, gastrointestinal disturbances, giddiness, garlic odor of the breath and sweat, moderate emotional instability, excess tooth cavities, loss of fingernails and hair, metallic taste in the mouth, respiratory tract irritation, fatigue, allergic eye reactions, and severe skin lesions. Selenium intoxication has caused blood, liver, kidney and spleen effects in laboratory animals.
Aggravation of Pre-existing Conditions:
Pepole with a history of asthma, allergies, known sensitization to selenium, a history of other chronic respiratory disease, gastrointestinal disturbances, disorders of the liver, blood or kidneys, or recurrent dermatitis would be expected to be at increased risk from exposure. Special consideration should be given to women of childbearing age since the possibility that selenium may be teratogenic might place these women in a high risk group.
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 immediately.
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. Keep unnecessary and unprotected people away from area of 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. US Regulations (CERCLA) require reporting spills and releases to soil, water and air in excess of reportable quantities. The toll free number for the US Coast Guard National Response Center is (800) 424-8802.
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from incompatible substances. Wear special protective equipment (Sec. 8) for maintenance break-in or where exposures may exceed established exposure levels. Wash hands, face, forearms and neck when exiting restricted areas. Shower, dispose of outer clothing, change to clean garments at the end of the day. Avoid cross-contamination of street clothes. 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:
-OSHA Permissible Exposure Limit (PEL):
0.2 mg/m3, Selenium Compounds, as Se
-ACGIH Threshold Limit Value (TLV):
0.2 mg/m3, Selenium & Compounds, as Se
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 facepiece particulate respirator (NIOSH type N95 or better filters) 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 particulate respirator (NIOSH type N100 filters) 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 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:
White crystalline solid.
Odor:
Odorless.
Solubility:
Appreciable (> 10%)
Specific Gravity:
No information found.
pH:
No information found.
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
No information found.
Melting Point:
No information found.
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 oxides of selenium form when heated to decomposition.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Strong oxidizers.
Conditions to Avoid:
Incompatibles.
Toxicological Data:
Anhydrous: Oral rat LD50: 7 mg/kg. Investigated as a tumorigen, mutagen, reproductive effector.
Reproductive Toxicity:
In laboratory animals, this compound has caused both birth defects and damage to the reproductive system.
Carcinogenicity:
EPA / IRIS classification: Group D1 - Not classifiable as a human carcinogen.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sodium Selenite (10102-18-8) No No 3
Environmental Fate:
No information found.
Environmental Toxicity:
For selenium salts: The LC50/96-hour values for fish are less than 10 mg/l. This material is expected to be toxic to very toxic to aquatic life.
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste facility. Although not a listed RCRA hazardous waste, this material may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements. 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.)
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Proper Shipping Name: SELENITES (SODIUM SELENITE, n-HYDRATE)
Hazard Class: 6.1
UN/NA: UN2630
Packing Group: I
Information reported for product/size: 100G
International (Water, I.M.O.)
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Proper Shipping Name: SELENITES (SODIUM SELENITE, n-HYDRATE)
Hazard Class: 6.1
UN/NA: UN2630
Packing Group: I
Information reported for product/size: 100G
International (Air, I.C.A.O.)
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Proper Shipping Name: SELENITES (SODIUM SELENITE, n-HYDRATE)
Hazard Class: 6.1
UN/NA: UN2630
Packing Group: I
Information reported for product/size: 100G
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Sodium Selenite (10102-18-8) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Sodium Selenite (10102-18-8) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sodium Selenite (10102-18-8) 100 100* No Selenium cmp
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
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Sodium Selenite (10102-18-8) 100 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: 2X
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.
NFPA Ratings: Health: 3 Flammability: 0 Reactivity: 0
Label Hazard Warning:
POISON! DANGER! MAY BE FATAL IF SWALLOWED. HARMFUL IF INHALED. CAUSES SEVERE IRRITATION TO SKIN AND EYES. CAUSES IRRITATION TO RESPIRATORY TRACT. AFFECTS LIVER, KIDNEYS, BLOOD, SPLEEN.
Label Precautions:
Do not get in eyes, on skin, or on 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. If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 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. In all cases get medical attention immediately.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 1, 3, 11.
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Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)