​​​​​​​​南星化工

S.S CHEM

Chromium Sulphate 碱式硫酸铬

Chromium Sulphate 碱式硫酸铬

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Chromium Sulphate

1. Basic indicators                                                                            

Molecular formula:

Cr(OH)SO4·nH2O

Cas No.:

12336-95-7

Appearance:

 Dark green powder

H.S Code:

3202900000

2. Technical specifications                                                                    

Item

Index

Chromium Oxide (Cr2O3)

26%Min

Basicity

33%

pH (10% solution)

3.0

Chromium (VI)  (ppm)

Nil

Moisture content

6%Max

Water Insoluble matter

0.1% Max.

Fe as Fe2O3

0.1% Max.

3. Application                                                                                                      

Basic Chromium Sulfate is mainly used in tanning of processing leather industry or synthesis of other chromium based re-tanning agents and production of chromic compound. It is also used in dyeing of khaki cloth and in manufacture of chrome-based dyestuffs.

4. Packing and storage                                                                                        

Packing: Double coated plastic woven bag, 25kg net; 500kg / 1000kg jumbo bags.

Storage: Dry, ventilated, moisture proof.

 

碱式硫酸铬

主要成分:盐基式硫酸铬(碱式硫酸铬)

技术指标:Cr2O3: 24±1%   

盐基度%:低(33±2)% 高(40±2)%;

水不容物%:≤0.8%;

PH值(1:10):2.8-4.0;

Cr6+≤3PPM;

Fe≤0.1%

产品特性:采用糖还原工艺,并含有一定的蒙囿剂,铬络合物的组成,电荷分布合理,组分较多,切具有适当的蒙囿性能,渗透力强,铬在革中分布均匀,吸收多,络合牢,革面细致、革身平整,手感丰满,弹性好。

参考用量:做主鞣用量视皮种类,用裸皮重的3-5%。

包装:本品采用防潮纸袋包装,每袋25±0.2千克定量包装。本品系非化学危险品,但应贮存于通风干燥、阴凉的库房。