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Executive standard: GB/T1278-1994 |
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Item |
Index |
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Analytical reagent |
Chemical pure |
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Ammonium bifluoride content (NH4HF4) ％ ≥ |
98.0 |
97.0 |
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Ignition residue (Sulfate), ％ ≤ |
0.01 |
0.05 |
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Chloride (C1), ％ ≤ |
0.001 |
0.005 |
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Sulfate (SO4) ％ ≤ |
0.005 |
0.01 |
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Fluosilicate (SiF6), ％ ≤ |
0.2 |
0.5 |
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Iron (Fe), ％ ≤ |
0.001 |
0.005 |
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Heavy metal (Pb), ％ ≤ |
0.002 |
0.005 |
Fujian Shaowu Yongfei Chemical Co., Ltd.
Add: No. 18, Xin' an Road, Shaowu City, Fujian Province, China
Foreign Trade Department Tel: +86-599-6655932/6654968 Fax: +86-599-6654591
Domestic Trade Department Tel: +86-599-6654866/6654968 Fax: +86-599-6655755
High Purity Chemical Product Department Tel: +86-599-6655536/6654968 Fax: +86-599-6655755