产商/产地 | 恒生 | 用途级别 | 食品级 |
含量 | 98(%) | 粒度 | 30-100(目) |
CAS编号 | 7778-77-0 | 执行质量标准 | FCC |
品牌 | HENGSHENG |
name of index |
fcc |
main contents ≥% |
99.0 |
ph of 1% water solution |
4.4 - 4.8 |
loss on drying ≤% |
0.05 |
heavy metals ≤% |
0.001 |
arsenic, as as ≤% |
0.0001 |
fluoride, as f≤% |
0.005 |
water insoluble≤% |
0.10 |
pb ≤% |
0.0001 |