Name:

Sodium Thiosulfate

Chemical formula:

Physical appearance:

Colorless or slightly yellow transparent monoclinic crystal.

Quality standard:

HG/T 2328-1992

Description:

Application:

1>Used in fixers,plating,leather,reductant,dechlorinating agent;

2>Sulfur dyeing agent;

3>as a blush preventive agent;

4>as a disinfectant and decolor agent.

Package:

1>25KG/50KG compound plastic woven bag with inner polythene liner;

2>1000kg Jumbo bags;

3>Any other particular requirements to the package can be discussed.

Shelf Life: One year

Storage & handing:

1>Store the product in a cool and dry place;

2>Prevent from direct sunlight, water and moisture;

3>Avoid contact with strong add oxidants;

4>Do not stores it for long time.

Product Specification:

                                   PHOTO GRADE      TECH GRADE          TECH GRADE

APPEARANCE            COLORLESS TRANSPARENT           WHITE POWDER

Na2S2O3                              >99.0%            >98.5%                           >97%

WATER INSOLUBLE          <0.01%            <0.03%                           <0.03%

SULFIDE                              <0.001%           <0.003%                        <0.001%

IRON                                    <0.001%           <0.003%                        <0.005% 

PH                                          6.5-9.5             6.5-9.5                          6.5-9.5