Product Certification&
Enterprise Certification
Country: China (Mainland)
Business Type:Trading Company
Tel: 86--1829 2989 553
Mobile:
Tel: 86--1829 2989 553
Fax:
URL: http://www.db-biotech.com
Province/state: shaanxi
City: xi'an
Street: No.99 Road, Xi'an, China
MaxCard:
CAS NO.139637-85-7
99%(1-25)Kilogram98%(1-25)Kilogram
Specification
Properties | Items |
Appearance | White crystalline powder |
Odor | Odorless |
Identification | Conforms |
Content | 98.5-101.0% |
Melting Point(With decomposition) | 225°C Min |
Loss on Drying | 0.1% Max |
Residue on Ignition | 0.1% Max |
pH (0.5% in water,25°C) | 4.0-6.0 |
Acidity or Alkalinity | Conforms |
Optical Rotation | Conforms |
Reducing Substances | Conforms |
Related Substances | Conforms |
As | 0.0002% Max |
Pb | 0.001% Max |
Conforms to USP and Ph.Eur. |
Applications
The product is mainly used as intermediates of organic synthesis as well as astringent for medicine,foodstuff,cosmetics
Packing
25kg/drum
Storage
Store in a well-ventilated,cool,dry area,out of direct sunlight.Keep containers tightly closed when not in use.
Period of validity
36 months