| Product Identification | Back to Contents | 【Product Name】
Sodium carbonate | 【Synonyms】
Disodium carbonate
Soda Ash
Trona | 【CAS】
497-19-8 | 【Formula】
CNa2O3 | 【Molecular Weight】
105.99 | 【EINECS】
207-838-8 | 【RTECS】
VZ4050000 | 【RTECS Class】
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector; Human Data; Primary Irritant | 【Merck】
12,8739 | 【Beilstein/Gmelin】
23964 (G) | 【EC Index Number】
011-005-00-2 | 【EC Class】
Irritant |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
White to greyish crystals, powders or lumps, hygroscopic. | 【Solubility in water】
365 g/L (20 C) | 【Melting Point】
854 | 【Boiling Point】
1600 | 【Density】
2.45 4 g/cm3 (18 C) | 【pKa/pKb】
(1) 6.37, (2) 10.25 (carbonic (at 25℃) (pKa) | 【Usage】
Baking powder, ph adjustment, fungicide, microbiocide, herbicide. | 【Refractive Index】
1.495 |
| First Aid Measures | Back to Contents | 【Ingestion】
Do NOT induce vomiting. 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】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. | 【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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
Harmful if inhaled. May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. | 【Skin】
Contact with skin causes irritation and possible burns, especially if the skin is wet or moist. | 【Eyes】
May result in corneal injury. Contact with eyes may cause severe irritation, and possible eye burns. | 【Ingestion】
May cause irritation of the digestive tract. | 【EC Risk Phrase】
R 36 | 【EC Safety Phrase】
S 22 26 |
| 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 protective gloves and clothing 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】
Prolonged or repeated inhalation may cause nosebleeds, nasal congestion, erosion of the teeth, perforation of the nasal septum, chest pain and bronchitis. | 【Poison Class】
5 |
| 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. Material will not burn. Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. In case of fire use water fog, dry chemical, carbon dioxide or alcohol type foam. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation. Cover with material such as dry soda ash or calcium carbonate and place into a closed container for disposal. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
14 | 【Incompatibilities】
Reacts explosively with red-hot alumium metal. Incompatible with ammonia + silver nitrate, 2,4-dinitrotoluene, 2,4,6-trinitrotoluene, sulfuric acid, sodium sulfide + water, lithium, phosphorus pentoxide, fluorine, and hydrogen peroxide. Hot concentrated solutions of sodium carbonate are mildly corrosive to steel. | 【Stability】
Stable at room temperature in closed containers under normal storage and handling conditions. | 【Decomposition】
Carbon dioxide, toxic fumes of sodium oxide. |
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