USD $1.00-1.00 / Metric Ton
USD $1.00-1.00 / Metric Ton
98%min
appearance |
white or pale yellow crystalline powder |
melting point |
262~267℃ |
loss on drying |
≤0.5% |
sulphate ash |
≤0.1% |
identification ir |
conforms |
tlc |
≤0.5% |
ph |
4.0~5.5 |
assay |
98.0%-101.0% |