Trichloromethane
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CAS No.: 67-66-3
Molecular formula: CHCl3
Molecular weight: 119.3779
RTECS No.: FS9100000
HS No.: 2903130000
UN No.: 1888
Hazard cargo No.: 61553
IMDG Page: 6103
I.Physicochemical properties:
1. Appearance and property: Colorless transparent heavy liquid, easy to volatile, with special odor.
2. Melting point: 635°C
3. Boiling point: 61°C
4. Liquid weight (D20°): 1.492
5. Solubility: 8 G/L (20°C)
6. Flash point: 60.5-61.5°C
7. Viscosity (20°C): 0.43mPa·s
8. Refractive rate nD (20°C): 1.445
9. Vapor density: 4.1 (vs air)
10. Vapor pressure: 160mmHg (20°C)
II. Usage
Raw material for organic synthesis, mainly used in the production of Freon (F-21, F-22. F-23).
Used in organic synthesis and anesthetic: as solvent of fat, rubber, resin, oils, wax, phosphorus, iodine; extractant of penicillin, essential oil, etc; inorganic phosphorus in measuring blood serum; detergent, etc.
III. Quality standard
Quality standardQ/YT003-2008
| Item | Index |
||
Superior |
First class |
Qualified |
|
Mass fraction of trichloromethanea/% ≥ |
99.95 |
99.90 |
99.80 |
Mass fraction of carbon tetrachloride/% ≤ |
0.04 |
0.08 |
0.20 |
Mass fraction of water /% ≤ |
0.010 |
0.010 |
0.020 |
Mass fraction of acid (Calculated by HCl) /% ≤ |
0.0004 |
0.0006 |
0.0010 |
Color/Hazen unit (Pt-Co color No.) ≤ |
10 |
15 |
25 |
a the added stabilizer amount in not included in the mass fraction of trichloromethane |
|||
IV. Precautions:
Explosion limit of dichloromethane in the air: 8.1-17.2%, is combustible chemical product. With high concentration, long-term contact will cause dizziness, sleepiness, nausea, tinnitus or numb limb, will recover after moving to fresh air, can not cause lasting damage. Contact with eyes can cause pain and irritation, will cause dermatitis in case of long-term contact.
V. Packing, storage and transportation
Hazard rank: 6.1 type toxic liquid
Hazard cargo packing mark: 15
Packing type: III
Packing materials: Galvanized drum or close tank car
Precautions: Should be stored in dry, cool and ventilated warehouse, avoid contacting with moisture. The transportation shall comply with the PRC road and railway transportation provision on hazard chemicals.| Industry Category | |
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