Mercury
- Quicksilver
- Liquid silver
- Hydragyrum
Mercury | |
| |
| Formula | Hg |
| Structure | |
| Description | Silver-white, heavy, mobile, odorless liquid. |
| Uses | Substance is used in barometers, thermometers, hydrometers, pyrometers. |
| Registry Numbers and Inventories. | |
| CAS | 7439-97-6 |
| EC (EINECS/ELINCS) | 231-106-7 |
| EC Index Number | 080-001-00-0 |
| EC Class | Toxic; Danger of cumulative effects; Dangerous for the Environment |
| EC Risk Phrase | R 23 33 50/53 |
| EC Safety Phrase | S 7 45 60 61 |
| RTECS | OV4550000 |
| RTECS class | Agricultural Chemical and Pesticide; Tumorigen; Drug; Mutagen; Reproductive Effector; Human Data |
| UN (DOT) | 2809 |
| Merck | 13,5925 |
| Beilstein/Gmelin | 1623 (G) |
| RCRA | U151 |
| EPA OPP | 52301 |
| Swiss Giftliste 1 | G-2040 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | Hg |
| Formula mass | 200.59 |
| Melting point, °C | -39 |
| Boiling point, °C | 356.5 |
| Vapor pressure, mmHg | 0.002 |
| Vapor density (air=1) | 7 |
| Saturation Concentration | 1.71 ppm (14 mg/m3) (0.00017%) at 20 C; 2.63 ppm (21.5 mg/m3) (0.00026%) at 25 C (calculated) |
| Evaporization number | 4 (butyl acetate=1) |
| Critical temperature | 1462 |
| Critical pressure | 1587 |
| Density | 13.54 g/cm3 |
| Solubility in water | Slightly soluble |
| Viscosity | 1.55 cpec (15.5 millip) at 20C |
| Surface tension | 470 g/s2 @ 20 C |
| Heat of fusion | 2.3 kJ/mol |
| Heat of vaporization | 61.2 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Store protected from azides. |
| WHMIS | D1A D2A D2B E |
| Handling | Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale. Use only in a chemical fume hood. Discard contaminated shoes. Do not breathe vapors. |
| 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 prevent skin exposure. |
| Respirators | A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. |
| Small spills/leaks | Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation. |
| Stability | Stable under normal temperatures and pressures. |
| Incompatibilities | Metals, aluminum, ammonia, chlorates, copper, copper alloys, ethylene oxide, halogens, iron, nitrates, sulfur, sulfuric acid, oxygen, acetylene, lithium, rubidium, sodium carbide, lead, nitromethane, peroxyformic acid, calcium, chlorine dioxide, metal oxides, azides, 3-bromopropyne, alkynes + silver perchlorate, methylsilane + oxygen, tetracarbonylnickel + oxygen, boron diiodophosphide. |
| Decomposition | Mercury/mercury oxides. |
| Fire. | ||||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Substance is nonflammable; use agent most appropriate to extinguish surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam. | |||
| Fire potential | Non-combustible. | |||
| Hazards | Not flammable | |||
| Combustion products | Dangerous when heated, it emits highly toxic fumes. | |||
| NFPA | Health | 3 | ||
| Flammability | 0 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | OSHA PEL: C 0.1 mg/m3 NIOSH REL: Hg Vapor: TWA 0.05 mg/m3 skin Other: C 0.1 mg/m3 skin NIOSH IDLH: 10 mg/m3 (as Hg) |
| Poison_Class | 2 |
| Exposure effects | May cause liver and kidney damage. May cause reproductive and fetal effects. Effects may be delayed. Chronic exposure to mercury may cause permanent central nervous system damage, fatigue, weight loss, tremors, personality changes. Chronic ingestion may cause accumulation of mercury in body tissues. Prolonged or repeated exposure may cause inflammation of the mouth and gums, excessive salivation, and loosening of the teeth. |
| Ingestion | May cause severe and permanent damage to the digestive tract. May cause perforation of the digestive tract. May cause effects similar to those for inhalation exposure. May cause systemic effects. |
| Inhalation | Causes chemical burns 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. May cause central nervous system effects including vertigo, anxiety, depression, muscle incoordination, and emotional instability. Aspiration may lead to pulmonary edema. May cause systemic effects. May cause respiratory sensitization. |
| Skin | May be absorbed through the skin in harmful amounts. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. Causes skin irritation and possible burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color. |
| Eyes | Exposure to mercury or mercury compounds can cause discoloration on the front surface of the lens, which does not interfere with vision. Causes eye irritation and possible burns. Contact with mercury or mercury compounds can cause ulceration of the conjunctiva and cornea. |
First aid |
|
| 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. Wash mouth out with water. |
| Inhalation | Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask. |
| Skin | Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes. |
| Eyes | Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes). |
| Transport. | ||
| UN number | 2809 | |
| Response guide | 172 | |
| Hazard class | 8 | |
| Packing Group | III | |
| USCG CHRIS Code | MCR | |
| HS Code | 2805 40 90 | |
| Std. Transport # | 4936336 | |