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Basic Chromium Sulphate
�鳥怏特仲�?埰懿燼
Cr(OH)SO4
Basic Chrome Sulphate can be used in tanning and retanning of any kind of leather including hides or skins. Due to its properties, Our product meets all requirements of a good leather tanning of any kinds. Uniformity and evenness of color and tanning effect is one of the plus points of this product which is suitable for dyeing to any shade. Leather made with this product is fine in grain and has a good compactness. It is compatible with other standard products used together with this product.
The production of Basic Chrome Sulphate is made from Sodium Dichromate, in which hexavalent chromium (ie. +6 oxidation state) in the form of Sodium Dichromate, is reduced to the trivalent state (+3) by sulfur dioxide. The chemical reaction involved is:
Na2Cr2O7 + 3SO2 + H2O → Cr2(SO4)2(OH)2 + Na2SO4
The product is totally reduced to the +3 oxidation state and has a basicity of 33%.
Some basic informations for this product as follows:
Molecular formular: Cr(OH)SO4
Form: green powder

Quality Standard: HG/T 2678－95
Items Specification
Cr2O3% 25±1
Basicity % 33±1
PH of Aqueous Solution 2.0±3.0
Water insouble matter%
0.5
제품관련분야 염료,안료
Premtec Enterprise
전화번호 86-371-69067080
팩스번호
홈페이지 -
이메일 export1@premtec.com.cn
주소 NO. 101, NANYANG ROAD, ZHENGZHOU , CHINA.
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