Ascorbic Acid (Vitamin C) USP/EP/FCC/E300

Product name

Ascorbic Acid (Vitamin C)

Batch No.

3240113196

Quantity

5,000kg

Manufacture date

Mar. 2024

Expiry date

Feb. 2028

 TEST ITEMS

SPECIFICATIONS

TEST RESULTS

Appearance

White or almost white crystalline powder

White crystalline powder

Identification

Positive

Positive

Specific rotation

+20.5 ~ +21.5^o

+20.95^o

Melting point

About 190^oC

191.2^oC

pH(2%, W/V)

2.4 ~ 2.8

2.57

pH(5% W/V)

2.1 ~ 2.6

2.36

Clarity and Color of solution

Clear, ≤BY₇

Clear, ₇

Copper

≤5mg/kg

<5mg/kg

Iron

≤2mg/kg

<2mg/kg

Mercury

≤1mg/kg

<0.1mg/kg

Heavy metals

≤10mg/kg

<10mg/kg

Lead

≤2mg/kg

<2mg/kg

Arsenic

≤3mg/kg

<3mg/kg

Loss on drying

≤0.4%

<0.4%

Residue on ignition

≤0.1%

<0.1%

Residual solvents

Passes

Passes

Assay (on dried basis)

99.0% ~ 100.5%

99.70%

Conclusion: This batch conforms to BP2018/ USP41/ FCC11 / EP9.8 /E300 and in-house specifications

Storage: Preserve in tight, light-resistant containers