Specification
Index | Needle | Powder |
Appearance | White or light yellow needle | White or light yellow powder |
Odor | without abnormal smell | without abnormal smell |
Active content by wt % | 92 min | 92 min |
Free oil by wt % | 3 max | 3 max |
Inorganic sulphate by wt % | 5 max | 5 max |
Total solid content by wt % | – | – |
Color (water solution with 5% active content, kllet) | – | – |
pH value (1% sol.): | 7-10 | 8-10 |
Whiteness | 80 min | 80 min |
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