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  • Sodium Hydrosulphite
  • Sodium Hydrosulphite
  • Sodium Hydrosulphite
  • Sodium Hydrosulphite
Sodium Hydrosulphite
Name: Sodium Hydrosulphite
MF: Na2S2O4
CAS NO.: 7775-14-6
Appearance(25℃): White free-flowing crystal powders
Minimum Order Quantity: 1 MT
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OverviewTechnical Data Inquiry

【Performance and Application】
Sodium hydrosulfite is a kind of white sand crystallization or light yellow powder chemicals, insoluble in ethanol, 
soluble in sodium hydroxide solution,and will burn a strong reaction when meeting with water.

Sodium hydrosulfite is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.

【Package】
20kg, 25kg, 50kg, 100kg, 200kg iron drums with double polyethylene liners.

【Storage】
Protect the product away from direct sunlight , heat , sparks and open flames.Carefully handle the product and avoid damaging the package.
【Technical Data】

 Index

90%

88%

85%

Food Additive

 Na2S2O4

≥90%

≥88%

≥85%

≥85%

 Iron (Fe)

≤20ppm

≤20ppm

≤20ppm

≤20ppm

 Zinc (Zn)

≤1ppm

≤1ppm

≤1ppm

≤1ppm

 Other heavy metal (as Pb)

≤1ppm

≤1ppm

≤1ppm

≤1ppm

 Water Insolubles

≤0.05%

≤0.05%

≤0.05%

≤0.05%

 Arsenic (As)

---

---

---

≤1ppm

 Format (as HCHO)

---

---

---

≤0.05%

 Shelf Life(month)

12

12

12

12

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