Carbon monoxide
- Monoxide
- Carbon oxide
- Carbonic oxide
- Carbon monoxide, compressed gas
Carbon monoxide | |
| |
| Formula | CO |
| Structure | |
| Description | A colorless odorless gas. |
| Uses | Reducing agent in metallurgical operations, fischer-tropsch processes for petroleum-type products, manufacture of metal carbonyls. |
| Registry Numbers and Inventories. | |
| CAS | 630-08-0 |
| EC (EINECS/ELINCS) | 211-128-3 |
| EC Index Number | 006-001-00-2 |
| EC Class | Extremely flammable; Toxic for reproduction Category 1; Toxic |
| RTECS | FG3500000 |
| RTECS class | Mutagen; Reproductive Effector; Human Data |
| UN (DOT) | 1016 |
| Merck | 12,1861 |
| Beilstein/Gmelin | 421 (G) |
| Swiss Giftliste 1 | G-1919 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | CO |
| Formula mass | 28.01 |
| Melting point, °C | -205 |
| Boiling point, °C | -191.5 |
| Vapor pressure, mmHg | 49.368 (-209 C) |
| Vapor density (air=1) | 0.968 |
| Critical temperature | -140 |
| Critical pressure | 35 |
| Density | 0.791 g/cm3 (20 C) |
| Solubility in water | 23 g/L |
| Surface tension | 9.8 g/s2 (liquid at 80 K) |
| Heat of fusion | 0.8 kJ/mol |
| Heat of vaporization | 6.0 kJ/mol |
| Heat of combustion | -283 kJ/mol |
| Hazards and Protection. | |
| Storage | Store in a cool, dry, well-ventilated location. Separate from alkali metals. Remove the sources of ignition. Electric installation should be explosion-proof construction. Protect container against sunlight, and store in well-ventilated, safe areas. |
| Handling | All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood. |
| Protection | Wear appropriate protective gloves, clothing and goggles -- as recommended by the manufacturer. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids. |
| Respirators | Wear positive pressure self-contained breathing apparatus (SCBA). |
| Small spills/leaks | Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. |
| Stability | Stable - severe hazard when exposed to heat or flame. |
| Incompatibilities | Reacts explosively with bromine trifluoride at high temperatures or concentrations Reacts with lithium to give lithium carbonyl, which detonates violently with water, igniting the gaseous products. |
| Fire. | ||||
| Flash Point,°C | -191 | |||
| Autoignition, °C | 609 | |||
| Upper exp. limit, % | 74 | |||
| Lower exp. limit, % | 12.5 | |||
| Fire fighting | Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. | |||
| Fire potential | Extremely - combustion imminent. Very flammable. | |||
| Hazards | EXTREMELY FLAMMABLE. May be ignited by heat, sparks or flames. Flame may be invisible. Containers may explode when heated. Vapor explosion and poison hazard indoors, outdoors or in sewers. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Runoff may create fire or explosion hazard. | |||
| Combustion products | Asphyxiation due to carbon dioxide production may result. | |||
| NFPA | Health | 4 | ||
| Flammability | 2 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | OSHA PEL: TWA 50 ppm (55 mg/m3) NIOSH REL: TWA 35 ppm (40 mg/m3) C 200 ppm (229 mg/m3) NIOSH IDLH: 1200 ppm |
| Poison_Class | 3 |
| Exposure effects | Acute effects include headache, syncope, seizures, dizziness, confusion and coma. Delayed effects may occur days to weeks after exposure; advanced age and neurologic anomalies during the acute event appear to be risk factors. 1. Severe effects may include mental deterioration, disorientation, hypokinesia, mutism, confusion, severe memory loss, coma, gait disturbances, incontinence, speech disturbance, tremor, visual loss, movement disorders, and parkinsonian syndrome. 2. Subtle effects may include headache, anorexia, nausea, apathy, lethargy, forgetfulness, personality changes, memory problems, irritability and dizziness. CO exposure during pregnancy is teratogenic, depending upon the stage of pregnancy. The fetus is more vulnerable to CO poisoning than the mother. |
| Ingestion | Nausea and vomiting are common; may mimic acute gastroenteritis or food poisoning. |
| Inhalation | Tachypnea is common. Respiratory failure, dyspnea, or pulmonary edema may occur. |
| Skin | Bullous lesions associated with carbon monoxide poisoning generally appear within 24 hours of exposure and are usually located on the palms and soles. |
| Eyes | Visual field deficits, retinopathy, or retrobulbar neuritis are late findings. |
First aid |
|
| Ingestion | Seek medical assistance. |
| Inhalation | Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. |
| Skin | Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water. |
| Eyes | Immediately flush with running water for at least 20 minutes. |
| Transport. | ||
| UN number | 1016 | |
| Response guide | 119 | |
| Hazard class | 2.3 | |
| PRTC | T | |
| USCG CHRIS Code | CMO | |
| Std. Transport # | 4920511 | |