one、 Overview:
Stannous sulfateWhite or light yellow crystalline powder，CAS NO 7four88-55-three, molecular formula SNSOfour . molecular weighttwoonefour.75. Melting point three60 ℃, densityfour.one5 g/cmthree。 Stannous sulfateyesThe main raw materials for industrial tin plating and aluminum alloy surface treatment，Contact air is easy to be oxidized and needs to be sealed for storage。
Stannous sulfatedissolvesolutionYu ShuiTimemeeting發(fā)生水solution產(chǎn)生沉淀物，使用Timeusuallydissolvesolution在Dilute sulfuric acidin。
Stannous sulfate不屬于化學(xué)危險(xiǎn)品。
two、 Quality standard：productMeet national standardsGB/T twothree8three0-two009
term order | National standard indicators |
Outsideview | White crystal or powder |
SnSOfourContent, % ≥ | ninety-nine |
Chloride (in)CL meter), % ≤ | 0.005 |
酸不dissolve物， % ≤ | 0.005 |
Sulfate and alkaline earth metals,% ≤ | zero point one |
Lead（Pb）， % ≤ | zero point zero two |
Antimony（Sb）， % ≤ | zero point zero one |
arsenic (As)， % ≤ | zero point zero zero one |
iron （Fe）， % ≤ | zero point zero zero five |
3、 Packaging and storage:
one、one00克玻璃瓶裝分析純?cè)噭㏒tannous sulfate，每箱two0瓶；
two、two5kgCarton or plastic bucketIndustrial grade packaging (vacuum packaging inside)5kg復(fù)合袋5包）。
This product should be stored in a dry and cool place, avoid rain and high temperature.
本品密封保存Time有效期onetwoMonths. It should be used up at one time after opening to avoid being affected by oxidation.
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