Antimony
- Stibium
Antimony | |
| |
| Formula | Sb |
| Structure | |
| Description | A silvery or gray solid in the form of dust. Odorless. |
| Uses | In manufacture of alloys, such as britannia or bobbitt metal, hard lead, white metal, type, bullets and bearing metal, in fireworks, for thermoelectric piles, coating metal, blackening iron. |
| Registry Numbers and Inventories. | |
| CAS | 7440-36-0 |
| EC (EINECS/ELINCS) | 231-146-5 |
| RTECS | CC4025000 |
| RTECS class | Tumorigen |
| UN (DOT) | 2871 |
| Merck | 12,733 |
| Beilstein/Gmelin | 16305 (G) |
| RCRA | K061 |
| Swiss Giftliste 1 | G-1204 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | Sb |
| Formula mass | 121.75 |
| Melting point, °C | 630 |
| Boiling point, °C | 1637 |
| Vapor pressure, mmHg | 0.002 (1000 C) |
| Vapor density (air=1) | 4.2 |
| Density | 6.684 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Heat of fusion | 18.7 kJ/mol |
| Heat of vaporization | 112.7 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep away from heat and flame. Do not store in direct sunlight. Store in a cool, dry, well-ventilated area away from incompatible substances. Tarnishes in moist air. |
| Handling | Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. |
| 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. |
| Small spills/leaks | Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Incompatibilities | Incompatible with ammonium nitrate, bromine, bromine trifluoride, bromoazide, chloric acid, chlorine, chlorine monoxide, chlorine trifluoride, fluorine, iodine, nitric acid, potassium nitrate, potassium permanganate, potassium peroxide, sodium nitrate, and sodium peroxide. |
| Decomposition | Stibine fumes. |
| Fire. | ||||
| Autoignition, °C | 330 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Material will burn in a fire. Dust can be an explosion hazard when exposed to heat or flame. Bulk metal is combustible in air at high temperatures. Extinguishing media: DO NOT USE WATER, carbon dioxide, OR FOAM DIRECTLY ON FIRE ITSELF. Use dry sand , graphite powder, dry sodium, chloride- based extinguishers. | |||
| Fire potential | Moderate in form of dust or vapor, when exposed to heat or flame. | |||
| Hazards | May react violently or explosively on contact with water. Some are transported in flammable liquids. May be ignited by friction, heat, sparks or flames. Some of these materials will burn with intense heat. Dusts or fumes may form explosive mixtures in air. Containers may explode when heated. May re-ignite after fire is extinguished. | |||
| Health. | |
| Exposure limit(s) | OSHA PEL: TWA 0.5 mg/m3 NIOSH REL: TWA 0.5 mg/m3 *Note: PEL and REL also apply to other Sb compounds (as Sb). NIOSH IDLH: 50 mg/m3 (as Sb) |
| Poison_Class | 2 |
| Exposure effects | Prolonged or repeated skin contact may cause dermatitis. Chronic exposure may cause dizziness, dry throat, sleepiness, anorexia, and nausea. Chronic inhalation may result in liver, kidney, and cardiac changes. |
| Ingestion | May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea. May cause slow pluse, low blood pressure, shallow breathing, and |
| Inhalation | Dust is irritating to the respiratory tract. 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. |
| Skin | Causes skin irritation. Chronic exposure may cause dizziness, dry throat, sleepiness, anorexia, and nausea. Chronic inhalation may result in liver, kidney, and cardiac changes. |
| Eyes | Causes eye irritation. May cause conjunctivitis. |
First aid |
|
| 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. |
| Inhalation | Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. |
| 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. |
| Transport. | ||
| UN number | 2871 | |
| Response guide | 170 | |
| Hazard class | 6.1 | |
| Packing Group | III | |
| USCG CHRIS Code | ATY | |
| Std. Transport # | 4925221 | |