| ≥1 piece |
Product Name: ascorbic acid (food grade)
We, Goldwing, as one of the largest manufacturers and exporters in China, have been dealing with these products for many years and exported large quantity abroad.
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Item
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Analysis Standard
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Results
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Characteristics
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White Crystalline Powder
|
Pass
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Identification
|
Positive Reaction
|
Pass
|
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Melting Point
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≈ 190
|
191
|
|
Heavy Metal
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≤ 10ppm
|
3ppm
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|
PH
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2.1-2.6
|
2.4
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Clarity of Solution
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Pass
|
Pass
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|
Color of Solution
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≤ BY7
|
BY7
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|
Oxalic Acid
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≤ 0.2%
|
0.2%
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|
copper
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≤ 5ppm
|
5ppm
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Iron
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≤ 2ppm
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2ppm
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Specific Rotation
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+20. 5 ° +21. 5 °
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+21. 2 °
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Assay
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99 100.5%
|
99.7%
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|
Sulfated Ash
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≤ 0.1%
|
0.03%
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|
organic Volatile Impurities
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Meets Requirements
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pass
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