Sodium Hydrosulfite - Hongding Chemicals Chemical Reagents Tue, 17 Jun 2025 08:59:43 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 246622208 Sodium Hydrosulfite https://www.hongdings.com/products/sodium-hydrosulfite/ Tue, 06 Aug 2024 02:44:02 +0000 http://www.hongdings.com/product/dnk-red-sports-shoes/ Sodium hydrosulfite is a white crystalline powder with sulfurous odor. It's a versatile bleaching agent that can be used in textile industry, food industry, paper & pulping industry, soap, animal (plant) oil, bamboo utensils...

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]]> Product Name: Sodium Hydrosulfite
CAS No: 7775-14-6
Einecs No: 231-890-0
HS Code: 2831101000
Formula: Na2S2O4
Grade Standard: Food Grade, Tech Grade
Appearance: White crystalline powder
UN No.: 1384
Packaging Details: 25KG/BAG, 50KG/BAG
Application:
A versatile bleaching agent that can be used in textile industry, food industry, paper & pulping industry, soap, animal (plant) oil, bamboo utensils…

Specification:

Item Range Unit Standard
Food grade Industrial grade
High-Class		 Industrial grade
First-Class
Sodium dithionite (Na₂S₂O₄) ≥ ω/% 88 90 88
Clarity – – Pass test – –
Heavy metals (as Pb) ≤ ω/% 0.001 – –
Lead (Pb) ≤ ω/% 0.0005 – –
Cadmium (Cd) ≤ ω/% 0.0002 – –
Arsenic (As) ≤ ω/% 0.0001 – –
EDTA – ω/% Qualified – –
Zinc (Zn) ≤ ω/% 0.03 – –
Formate (as HCHO) ≤ ω/% 0.005 – –

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