Ascorbic Acid.Sodium Erythorbate
- Company Name:Qingdao Saminchemical.Co,.LTD.
- Membership:Free Member
- Member Since:2008. 08.06
- Country/Region:China
- City:Shandong
- Contact:Daniel Wang
- Related Keywords:Sodium Erythorbate, Sodium Ascorbate
Contact us
Qingdao Saminchemical.Co,.LTD.
[China]
Ascorbic Acid
BP/USP/EP/JP/CP
ITEM | SPECIFICATION | RESULT | ||||||
1. | Characteristics | White or almost white crystals or crystalline powder | White crystalline powder | |||||
2. | Identification | Positive reaction | Positive | |||||
3. | Melting point | About 190â | 191â | |||||
4. | PH | 2.1 to 2.6 | 2.42 | |||||
5. | Clarity of solution | Clear | Clear | |||||
6. | Color of solution | Not more than BY7 | Less than BY7 | |||||
7. | Copper | Not more than 5ppm | Less than 5ppm | |||||
8. | Heavy metals | Not more than 10ppm | Less than 5ppm | |||||
9. | Mercury | Less than 0.1mg/kg | Conform | |||||
10. | Lead | Less than 3mg/kg | Conform | |||||
11. | Arsenic | Not more than 3ppm | Less than 3ppm | |||||
12. | Cadmium(Cd) | Less than 1mg/kg | Conform | |||||
13. | Oxalic acid | Not more than 0.2% | Less than 0.2% | |||||
14. | Iron | Not more than 2ppm | Less than 2ppm | |||||
15. | Loss on drying | Not more than 0.4% | Less than 0.1% | |||||
16. | Residue on ignition | Not more than 0.1% | Less than 0.1% | |||||
17. | Mesh | 40-80mesh | Pass | |||||
18. | Specific rotation | +20.5°-+21.5° | +21.11° | |||||
19. | Organic volatile impurities | Pass | Pass | |||||
20. | Free of metal perticles | Containing or not containing | Not containing | |||||
21. | Assay | 99.0%--100.5% | 99.91% |
Other products from this supplier
Related products from premium suppliers on EC21
Browse: Manufacturer Directory Countries China India Korea Premium Suppliers Community Site Map
About EC21 Contact Us Terms & Conditions Report Item Online Trading Risks Product Listing Policy
中文 繁體 한국어 日本語 Español Русский Français Deutsch
Copyright (c)1997-2024 EC21 Inc. All Rights Reserved. EC21 in KoreanChinese
Business Registry Number: 120-86-03931