| [Fire Fighting] Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. | |
| [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] Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | |
| [Skin] Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. | |
| [Eyes] Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. | |
| [Storage] Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. | |
| [Handling] Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation. | |
| [Inhalation] Dust is irritating to the respiratory tract. | |
| [Skin] Causes skin irritation. | |
| [Eyes] Causes eye irritation. May cause conjunctivitis. | |
| [Ingestion] Ingestion of large amounts may cause gastrointestinal irritation. May cause mechanical obstruction of the digestive | |
| [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 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 inhalation may cause respiratory tract inflammation and lung damage. | |
| [Appearance] white powder | |
| [Density] 2.73 g/cm3 | |
| [Usage] Plaster of paris. | |
| [Product Name] Calcium sulfate hemihydrate | |
| [Synonyms] Plaster of Paris Sulfuric acid, calcium salt, hydrate (2:2:1) | |
| [CAS] "CASEN_10034-76-1.htm">10034-76-1 | |
| [Formula] 2CaO4S.H2O | |
| [Molecular Weight] 290.3 | |
| [RTECS] EW4150000 | |
| [Beilstein/Gmelin] 77181 (G) | |
| [Small spills/leaks] Vacuum or sweep up material and place into a suitable disposal container. | |
| [Incompatibilities] Calcium sulfate is incompatible with aluminum and diazonethane. At high temperatures, mixtures of calcium sulfate and phosphorus ignites. | |
| [Stability] Stable under normal temperatures and pressures. | |
| [Decomposition] Oxides of sulfur. |
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