| Product Identification | Back to Contents | 【Product Name】
Sodium selenite | 【Synonyms】
Disodium selenite | 【CAS】
10102-18-8 | 【Formula】
H10Na2O8Se | 【Molecular Weight】
172.93 | 【EINECS】
233-267-9 | 【RTECS】
VS7350000 | 【RTECS Class】
Tumorigen; Mutagen; Reproductive Effector; Human Data | 【Merck】
12,8822 | 【Beilstein/Gmelin】
198696 (G) | 【EC Index Number】
015-185-00-3 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
A white colored crystalline solid. | 【Solubility in water】
Very soluble | 【Melting Point】
710 | 【Density】
3.1 g/cm3 (20 C) | 【Usage】
Removing green color from glass during its mfr, alkaloidal reagent. | 【Vapor Density】
5.96 |
| First Aid Measures | Back to Contents | 【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 to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Keep container closed when not in use. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
Causes respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema. | 【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, | 【Eyes】
Causes severe eye irritation. | 【Ingestion】
May be fatal if swallowed. Poison by ingestion. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. | 【Hazards】
May burn but will not ignite readily. When heated to decomposition, may emit toxic fumes of selenium and sodium oxide. Stable in air. | 【UN (DOT)】
2630 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | 【Exposure Effects】
May cause reproductive and fetal effects. Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath, | 【Exposure limit(s)】
TLV (as Se): ppm; 0.2 mg/m3 (ACGIH 1991-1992). | 【Poison Class】
1 |
| Fire Fighting Measures | Back to Contents | 【Fire Fighting】
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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. | 【Fire Potential】
Nonflammable. |
| Stability and Reactivity | Back to Contents | 【Incompatibilities】
Incompatible with strong acids. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Toxic fumes of sodium oxide, selenium/selenium oxides. | 【Combustion Products】
Toxic gases and vapors may be released in a fire involving. |
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