Stannous sulfate

2019-09-23 764

1、 Overview:

Stannous sulfate is a white or light yellow crystalline powder, CAS 7488-55-3, molecular formula SnSO4, molecular weight 214.75, melting point 360 ℃, density 4,15 g / cm3. Stannous sulfate is the main raw material for industrial tin plating and aluminum alloy surface treatment. It is easy to be oxidized in contact with air and needs to be sealed and preserved; When dissolved in pure water, it is hydrolyzed to produce sediment, which is usually dissolved in dilute sulfuric acid.

The stannous sulfate sold by the company is produced by Huaxi Group, the drafting unit of the national standard industrial stannous sulfate. The internal control quality index exceeds the national standard GB / T 23830-2009. It is one of the best quality stannous sulfate produced in Asia at present. It can be directly sub packed into analytical pure reagent, which is the best choice for electroplating of high-quality electronic products. Customers using other brands of stannous sulfate can directly convert Huaxi brand stannous sulfate without any change.

2、 Quality standard: the product meets the national standardGB/T 23830-2009

project



National standard indicators

Typical indicators of Huaxi

appearance



White crystal or powder

White powder

SnSO4 content,

%

ninety-nine

ninety-nine point two

Chloride (in CL),

%

zero point zero zero five

zero point zero zero five

Acid insoluble matter,

%

zero point zero zero five

zero point zero zero five

Sulfate and alkaline earth metals,

%

zero point one

zero point zero five

Lead (PB),

%

zero point zero two

zero point zero zero five

Antimony (sb),

%

zero point zero one

zero point zero one

Arsenic (as),

%

zero point zero zero one

zero point zero zero one

Iron (FE),

%

zero point zero zero five

zero point zero zero five


3、 Packaging and storage:

1. 100 g glass bottles of analytical pure reagent stannous sulfate, 20 bottles per box;

2. 25kg barrel industrial grade (with 5kg vacuum packaging and 5 bags of composite bags inside).

This product should be stored in a dry and cool place, avoid rain and high temperature.

The product is valid for 18 months when sealed. It should be used up at one time after opening to avoid being affected by oxidation.