USD $10.00-10.00 / Gram
USD $25.10-28.30 / Gram
USD $10.00-10.00 / Gram
USD $25.10-28.30 / Gram
USD $25.10-28.30 / Gram
USD $10.00-10.00 / Gram
USD $25.10-28.30 / Gram
USD $2.00-10.00 / Kilogram
USD $10.00-10.00 / Gram
specification example:
item |
specification |
analytical result |
assay, % |
≥98 |
99 |
character |
white powder |
conforms |
ph |
2.3-2.4 |
2.33 |
melting point, ℃ |
158-163(±0.5) |
158.6-160.9 |
loss on drying, % |
≤ 1.0 |
0.10 |
sulphated ash, % |
≤0.2 |
0.11 |
free glucose, % |
≤0.1 |
0 |
free ascorbic acid, % |
≤0.1 |
0 |
heavy metals, ppm |
≤10 |
conforms |
arsenic, ppm |
<1 |
conforms |
conclusion |
this sample meets the specifications |