Sodium Bisulfite

Sodium Bisulfite – General Introduction

 

Chemical Appearance:

Sodium bisulfite is a white, crystalline powder or solid substance.

 

Applications:

Sodium bisulfite finds diverse applications across various industries:

 

– Food and Beverage Industry:

Actively used as a food preservative and antioxidant to prevent spoilage and discoloration.

– Water Treatment:

Employed for dechlorination in water treatment processes to eliminate excess chlorine.

– Photography:

Utilized as a photographic developer and fixer in photographic processing.

– Textile Industry:

Applied in the textile industry for fabric bleaching and dye removal.

– Chemical Processing:

Used as a reducing agent in various chemical processes and industrial applications.

– Chemical Reactions:

Sodium bisulfite undergoes chemical reactions, particularly serving as a reducing agent in processes where oxygen removal is necessary.

 

Safety:

While generally considered safe for its intended applications, proper handling and adherence to safety guidelines are crucial.

 

Environmental Impact:

The environmental impact of sodium bisulfite is influenced by its usage context. Responsible disposal practices are essential to minimize any potential environmental effects.

 

Specification

inspection standard	HG/T 3814-2006
inspecting item	Standard requirements	The measured results
Content (in S02),%	64.0~67.0	65.3
surface	White crystal powder	White crystal powder
water-insoluble,%	≤0.03	0.01
Chloride (in C1),%	≤0.05	<0.05
iron (Fe),%	≤0.004	<0.004
arsenic (As),%	≤0.0002	<0.0002
Heavy metals (in Pb),%	≤0.001	<0.001
PH Value (50g / L solution)	4.0~5.0	4.6