Redwood is the manufacturer and supplier of Ascorbic Acid (Vitamin C). We have been engaged in the production and sales of Ascorbic Acid (Vitamin C) for 10 years. If you have any questions about Ascorbic Acid (Vitamin C), please Contact Redwood , we will contact you within 1 working day.
Over 10 years of experience since 2010
QC center for quality control before shipment 
Sales to 1000+ customers from 90 countries until 2022| SUPPLIER: | REDWOOD BIOTECH CO., LTD |
| PRODUCT: | Ascorbic Acid |
| Specification: | BP2014/USP38/E300/FCC7/EP8.0 |
| ITEM | Unin | STANDARD |
| CHARACTERISTICS | - | White or almost white crystalline powder |
| IDENTIFICATION | - | POSITIVE REACTION |
| MELTING POINT | ℃ | ABOUT 190 ℃ |
| PH VALUE | - | 2.1-2.6 |
| CLARITY OF SOLUTION | - | CLEAR |
| COLOUR OF SOLUTION | - | ≤BY7 |
| COPPER | PPM | ≤5 |
| HEAVY METALS (LEAD) | PPM | ≤10 |
| LEAD | PPM | ≤2 |
| IRON | PPM | ≤ 2 |
| ARSENIC | PPM | ≤3 |
| OXALIC ACID | % | ≤0.2% |
| SULPHATE ASH (RESIDUE ON IGNITION) | % | ≤0.1% |
| SPECIFIC OPTICAL ROTATION | - | +20.5 ~ +21.5 |
| ASSAY | % | 99.0% ~ 100.5% |
| ORGANIC VOLATILE IMPURITIES | - | PASS |
