|Unit Price:||USD 600.0000 / Metric Ton |
|Payment Type:||L/C,T/T,Western Union|
|Min. Order:||20 Metric Ton|
|Delivery Time:||10 Days|
Model No.: 26%
Grade Standard: Industrial Grade
Product Name:: Basic Chromium Sulphate
CAS No.:: 12336-95-7
Other Names:: Chrome Sulphate Basic
Purity:: 21-23% 24-26%
Appearance:: Green Powder
Application:: Leather Tanning Agent
Type:: Chromium Products
Packaging: 25kg kraft bag, 20MT in 20`FCL
Place of Origin: China
Supply Ability: 100000ton
Certificate: ISO, SGS, BV
HS Code: 32029000
Basic chromium sulfate is produced from chromate salts by reduction with sulfur dioxide, although other methods exist. The reduction could formally be written:
Na2Cr2O7 + 3 SO2 + H2O → Cr2(SO4)3 + 2 NaOH
Since 33% of the anion charges are due to hydroxy ions the basicity is 33% (but in tanning jargon it is known as 33% reduced). Products with higher basicities, e.g. 42% or 50% may be obtained by the addition of Sodium carbonate , these are often used in combination with sodium formate. The sodium sulfate is often left in the technical product since it is inert with respect to the tanning process. It is important to fully reduce the hexavalent chromium to trivalent since the hexavalent is more likely to cause health problems for tanners and leather consumers.
Leather Industry Used Basic Chromium Sulphate 24%-26%
Product name: Basic chrome Sulphate; Chromic Sulfate, Chromium sulfate, basic, solid
Other name: Chromium sulfate, BASIC; Chromium hydroxide sulfate
Molecular formula: 2Cr（OH）SO4
Molecular Weight: 165.06
CAS NO.: 39380-78-4
Standard: HG/T 2678-95
Property: Basic chromium sulphate is available in bright green powder with high tanning properties. The product is dried with most sophisticated steam drum drier which does not allow material to be overheated. It is not toxic and has better solubility.
Use: The main application is making chrome tanned leather, insolubilizing proteins and other organic substances.
Packing: 25kgs plastic woven bags
We are Jinhe Enterprise Co., Limited, Pigment&Dye manufacturing enterprise since 1998, We often supply Titanium Dioxide, Iron oxide, Carbon Black to paint factory, brick factory, rubber factory as well as some distributors or importers, through many years development, we also focus on Leather and textile Manufacturing and Exporting, for example, Basic Chrome Sulphate, Formic Acid, Acetic Acid Glacial, Oxalic Acid, Sodium Formate etc, pls contact me freely.