specification,
item |
specification |
appearance |
off-white powder |
assay |
98%min |
melting point |
83~86℃ |
clarity of water solution |
transpency, colorless, none suspended matters |
arsenic |
≤2 ppm |
heavy metal |
≤10 ppm |
loss on drying |
≤0.5% |
ignition residue |
≤0.5% |
pathogen |
bacteria:≤300cfu/g fungus:≤100cfu/g |
packing: 1kg/aluminium bag, 25kg/drum
delivery: prompt