|
 |
 Perchlorethylene |
| Chemical Name: |
Perchlorethylene |
| CAS RN.: |
-- |
Molecular Formula:
|
C2Cl4 |
| Molecular Weight: |
165.82 |
| Commodity Code: |
|
Structural Formula: |
CCl2=CCl2 |
| Appearance: |
Colorless transparent fluid liquid with chloroform-like odor, miscible with ethanol, ether, chloroform and benzene. |
| Physical Properties: |
①b.p.: 121℃ ②relative density: 1.623 ③no flash point ④ignition point: 347.1℃ |
| Chemical Properties: |
Non-combustible at normal conditions; but will burn with long-time exposure to naked fire and high temperature. |
| Quality Spec.: |
Quality check list for industrial perchlorethylene
Item |
Details |
Measured value |
Type Ⅰ |
Type Ⅱ |
Color, Hazen ≤ |
15 |
50 |
15 |
| Density p20 g/cm3 |
1.615-1.625 |
1.615-1.630 |
1.625 |
Basicity ( NaOH )%,≤ |
0.03 |
0.03 |
0.002 |
Purity,% ≥ |
99.6 |
98.5 |
99.6 |
Residue on evaporation,% ≤ |
0.005 |
0.007 |
0.0004 |
Moisture,% |
0.0050 |
0.0070 |
0.0055 |
Stability test, copper corrosion,gm/cm3 ≤ |
0.50 |
1.0 |
0.06 |
Residual odor |
No foreign odor |
/ |
/ |
|
| Use: |
Widely used for the dry-cleaning of garments, fur and textiles. |
| Notes: |
It is irritating and anaesthetic. |
| Blasting risk: |
It is non-combustible, toxic and irritating. |
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