Item	Chinese standard		Company standard
	HG/T2826-2008
	Top-grade	First grade
Main content(Na2S2O5)	≥96.5	≥95.0	≥97.0
Fe %( Fe)	≤0.005	≤0.010	≤0.002
Water-Insoluble	≤0.05	≤0.05	≤0.02
Arsenic(As) content	≤0.0001	--	≤0.0001

Net weight: 25, 50, 1000kilograms per bag or following your demands.

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Weifang Shengkai Chemical Co., Ltd.

Mr. Li: +86-13964710056

Phone: +86-17863657832

E-mail: eva.chen@shengkaichem.cn

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