Certificate of Analysis and technical specification for Ascorbic Acid (Vitamin C) — CAS 50-81-7. Applies to all consignments of this product and grade.
| Product Name | Ascorbic Acid (Vitamin C) |
|---|---|
| C.A.S. Number | 50-81-7 |
| Product Category | Acids & Alkalis |
| Product Group | Organic Acids |
| Grade / Standard | Food/Pharma Grade |
| Physical Form | White crystalline powder |
| Country of Origin | India |
| Packing | Standard export packing — bags, drums, carboys, IBC or ISO tank as applicable |
| Storage | Cool, dry, well-ventilated place in tightly closed original packing |
| S. No. | Test Parameter | Specification | Typical Result | Method |
|---|---|---|---|---|
| 1 | Description | White crystalline powder | Complies | Visual |
| 2 | Identification | Conforms to the structure of the substance | Complies | FTIR / Chemical test |
| 3 | Solubility | As per specification | Complies | Visual / Monograph |
| 4 | Matter Insoluble in Water | Not more than 0.05 % w/w | 0.020 | Gravimetry |
| 5 | pH (5 % w/v aqueous solution) | As per specification | 4.8 | Potentiometry |
| 6 | Chloride (as Cl) | Not more than 0.01 % w/w | 0.0021 | Turbidimetry / IC |
| 7 | Sulphate (as SO4) | Not more than 0.02 % w/w | 0.0055 | Turbidimetry / IC |
| 8 | Iron (as Fe) | Not more than 20 ppm | 3.2 ppm | ICP-OES / AAS |
| 9 | Heavy Metals (as Pb) | Not more than 10 ppm | Less than 5 ppm | ICP-OES |
| 10 | Moisture | Not more than 1.0 % w/w | 0.12 | Karl Fischer / Gravimetry |
| 11 | Total Aerobic Microbial Count | Not more than 1000 cfu/g | 137 cfu/g | IP / USP <61> |
| 12 | Total Yeast & Mould Count | Not more than 100 cfu/g | 7 cfu/g | IP / USP <61> |
| 13 | Escherichia coli | Absent in 1 g | Absent | IP / USP <62> |
| 14 | Salmonella species | Absent in 10 g | Absent | IP / USP <62> |
This document sets out the standard specification for Ascorbic Acid (Vitamin C) and applies to all consignments of this grade. It is not a lot-specific release document; a lot-specific certificate carrying the analysis of the material actually shipped is issued with each consignment. Scapex Exports supplies against customer-specified assay limits and pharmacopoeial standards — send your specification sheet and we will confirm compliance before order.
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