| Physical and Chemical Properties | Back to Contents | 【Appearance】
Colorless odorless inert cryogenic liquid. | 【Solubility in water】
3.4 g/100 ml | 【Melting Point】
-189.2 | 【Boiling Point】
-185.86 | 【Vapor Pressure】
10322 (-150 C) | 【Density】
0.001633 g/cm3 (20 C) | 【Heat Of Vaporization】
6.6 kJ/mol | 【Usage】
Gas as shield in gas metal-arc welding, in metal processing. | 【Vapor Density】
1.378 |
| First Aid Measures | Back to Contents | 【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. |
| Handling and Storage | Back to Contents | 【Storage】
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage. | 【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. |
| Hazards Identification | Back to Contents | 【Inhalation】
Vapors may cause dizziness or asphyxiation without warning. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. | 【Skin】
Contact with liquid may cause frostbite. | 【Eyes】
Pain. Blurred vision. Severe deep burns. | 【Ingestion】
Not likely to be a routed of exposure. | 【Hazards】
Containers may explode when heated. Ruptured cylinders may rocket. | 【UN (DOT)】
1951 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids. | 【Respirators】
Wear positive pressure self-contained breathing apparatus (SCBA). | 【Exposure Effects】
The toxological properties of this substance have not been fully investigated. | 【Poison Class】
- |
| Fire Fighting Measures | Back to Contents | 【Fire Fighting】
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Do not use water on material itself. Apply water from as far a distance as possible. | 【Fire Potential】
Non-flammable gas. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Make no contact with the spilled material. Stop leak if you can do it without risk. Do not direct water at spill or source of leak. If possible, turn leaking containers so that gas escapes rather than liquid. Allow substance to evaporate. Ventilate the area. |
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| Company Name: |
Sigma-Aldrich |
| Tel: |
021-61415566 800-8193336 |
| Fax: |
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| WebSite: |
https://www.sigmaaldrich.cn |
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