There are the contents as 92%,95%,98%,ect.
1.As raw material use for manufacture of sodium hydrosulfite, oxalic acid and formic acid.
2.Use for leather industry.
3.As environmental friendly snowmelt salt/agent/deicing chemical in Winter;
as Antifreeze use for building industry
4.As environmental friendly drilling fluid additive of petroleum & natural gas industries,
5.As reductive agent use in textile dyeing and printing industry;
6.Use for catalyst and stable synthetic agent;
The material is very tight,especially 95% and 98%.
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