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| Dichloromethane |
| Cas No |
75-09-2 |
| Molecular formula |
CH2Cl2 |
| Molecular weight |
84.93 |
| Structural formula |
 |
| Physical and chemical properties |
Appearance and properties |
Colorless transparent liquid with aromatic odor |
Melting point(℃) |
-96.7 |
Boiling point(℃) |
39.8 |
Relative density (water=1) |
1.33 |
Relative vapor density (air=1) |
2.93 |
Saturated vapor pressure(kPa) |
30.55(10℃) |
Heat of combustion(kJ/mol) |
604.9 |
Critical temperature(℃) |
237 |
Critical pressure(MPa) |
6.08 |
Logarithm of octanol/water partition coefficient |
1.25 |
Ignition temperature(℃) |
615 |
Upper explosive limit%(V/V) |
19 |
Lower explosive limit%(V/V) |
12 |
Solubility |
Slightly soluble in water, soluble in ethanol and ether |
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| Quality indicators |
Index name |
Q/JHS111-1996(2000) |
Superior grade product |
First grade product |
Chroma (Pt-Co) No.≤ |
10 |
10 |
Acidity (by HCL),%≤ |
0.0004 |
0.0008 |
Moisture %≤ |
0.20 |
0.50 |
Non-volatile matter,%≤ |
0.0005 |
0.001 |
Fluoride (by CL),%≤ |
0.0005 |
- |
Purity,%≥ |
99.9 |
99.0 |
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| Use |
Used as the solvent of resin and plastic industry. Widely used in pharmaceutical, plastic, film and other industries. |
| Packing |
250kg metal pail |
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