​​​​​​​​南星化工

S.S CHEM

Sodium Hyposulphate (Thiosulphate) 硫代硫酸钠(大苏打海波)

Sodium Hyposulphate (Thiosulphate) 硫代硫酸钠(大苏打海波)

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Sodium Hyposulphate (Thiosulphate)

1. Basic indicators                                                                            

Molecular formula:

Na2S2O3.5H2O

Cas No.:

10102-17-7

Appearance:

Colorless transparent monoclinic crystal

H.S Code:

2832300000

2. Technical specifications                                                                    

Item

The National Standard

Sodium Hyposulphate

99% min

Sulfide

0.001% max

Water Insoluble

0.01% max

Iron

0.002% max

PH

6.5--9.5

3. Application                                                                                                      

Used as a fixing agent in photographic industry. For electroplating, water purification and tanning leather, also used as a reducing agent of the chemical industry, cotton antichlor after bleaching, dyeing wool fabrics sulfur dye, indigo dye agent of anti-white, paper pulp antichlor, pharmaceutical industry used as a detergent, disinfectant and bleaching agent.

4. Packing and storage                                                                                        

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

Storage: Dry, ventilated, moisture proof.


硫代硫酸钠(大苏打海波)

分子式:NA2S2O35H2O

分子量:248.18

性状:硫代硫酸钠又名大苏打海波,为无色透明单斜晶系晶体,无臭、味咸。比重1:729。加熟到100摄氏度,失去5个结晶水,易溶于水,不溶于醇,在酸性溶液中分解,具有强烈的还原性。在33摄氏度以上的干燥空气中易风化,在潮湿的空气有中潮解性。

用途:用作照相行业定影剂、电镀、净化饮水、鞋制皮革化工行业还原剂等。

包装:用内祔聚氯乙烯塑料袋的麻袋、塑料编织袋包装。

储存:储存在干燥、阴凉处、库房中、运输中避免暴晒或雨淋。

规格:

指标名称

一级

二级

硫代硫酸钠NA2S2O35H2O

≥99%

≥98%

水不溶物

≤0.01%

≤0.03%

硫化物

≤0.001%

≤0.003%

≤0.001%

≤0.003%

水溶液反应

符合试验

符合试验