Ammonium bisulphite solution 70% (Photographic grade )--Haimen Wuyang Chemical Industry Co.,Ltd.

Inorganic chemical products: Sodium thiosulfate; Ammonium Thiosulphate; Potassium sulfite solution 45% (P; Ammonium bisulphite solution 70%; Sodium metabisulfite

Vat dyes and intermediates: Vat red F3B; Vat red 54#; Vat red FBM; Vat blue 66#; 1-nitro-2-methyl-anthraquinone

Pigment intermediates: 2B acid

Pharmaceutical intermediates: 3-Chlorophenol

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Ammonium bisulphite solution 70% (Photographic grade )

1. Product name: Ammonium bisulphite solution
2. Molecular formula: NH₄HSO₃
3. Molecular weight: 99.10
4. Physical and chemical properties: light yellow liquid, with a little sulfur dioxide odor. Relative density (70%) : 1.4.
5. Technical index:

Item			Photographic grade
Appearance			clear light yellow liquid
Content w/w %			68-72
pH value (stock solution 20°C)			4.0-6.0
Iron (Fe) w/w %≤			0.001

6. Packing: 270kg plastic drum
7. Uses: in synthesizing dye intermediate, surfactant, herbicide, reducing agent in pharmaceutical industry, etc.

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