USD $2.00-10.00 / Kilogram
USD $11,000.00-12,000.00 / Metric Ton
USD $11,000.00-12,000.00 / Metric Ton
USD $11,000.00-12,000.00 / Metric Ton
USD $2.00-10.00 / Kilogram
USD $11,000.00-12,000.00 / Metric Ton
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
item | specification | test result |
identification | positive | corresponds |
description | white or pale yellowish | pale yellowish powder |
powder or granule | ||
ph | 70-8.5 | 7.8 |
state of solution | colourless to pale | pale yellowish |
clarity | clear | clear |
colour of solution | ≤by6 |
|
chloride | ≤0.035% | <0.035ppm |
heavy metals | ≤0.002 | <0.002 |
arsenic | ≤0.0002 | <0.0002 |
free ascorbic acid | ≤0.5% | <0.5% |
free phosphoric acid | ≤1% | 0.80% |
derivatives of ascorbic acid | ≤3.5% | 0.50% |
ketogulonic acid andit′s derivatives | ≤2.5% | <2.0% |
water | ≤29.0% | 26% |
assay (anhydrous) | ≥95% | 97% |
specific rotation | <21.5~24.5 | 22.9 |
conclusion | conform to standard |
item | specification | test result |
identification | positive | corresponds |
description | white or pale yellowish | pale yellowish powder |
powder or granule | ||
ph | 70-8.5 | 7.8 |
state of solution | colourless to pale | pale yellowish |
clarity | clear | clear |
colour of solution | ≤by6 | <by6 |
chloride | ≤0.035% | <0.035ppm |
heavy metals | ≤0.002 | <0.002 |
arsenic | ≤0.0002 | <0.0002 |
free ascorbic acid | ≤0.5% | <0.5% |
free phosphoric acid | ≤1% | 0.80% |
derivatives of ascorbic acid | ≤3.5% | 0.50% |
ketogulonic acid andit′s derivatives | ≤2.5% | <2.0% |
water | ≤29.0% | 26% |
assay (anhydrous) | ≥95% | 97% |
specific rotation | <21.5~24.5 | 22.9 |
conclusion | conform to standard |