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| Refined
naphthalene |
The
product complies with Coking Naphthalene Standard GB/T6699-1998
Quality Standards of refined naphthalene: |
| Quality
Standard: |
| Item |
Standard |
| Excellent |
Grade 1 |
Qualified |
| Appearance |
Melt products or powder
or flake crystal |
| Color |
White |
White, reddish or yellowish
is permitted |
| Crystallization Point,°C not less than |
79.8 |
79.6 |
79.3 |
| Non-volatile matter, % not more than |
- |
0.01 |
0.02 |
| Ash, % not more than |
- |
0.006 |
0.008 |
| Acid pickling color comparions Colorimetric
Solution not deeper than |
No.2 |
No.4 |
- |
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| Using:
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used for making dye intermediates like 1-Hydroxy naphthalene
and 2-Hydroxy naphthalene, plasticizer, synthetic resin, surfactants,
etc..
Packing: woven bag lined with plastic one 50kg.
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