ammonium sulfate 98.5% white powder

1. Product info.

Molecular Formula :(NH4)2S2O8

Molecular weight : 228.20

Ammonium sulfate is a white monomeric crystal with the density of 1.98.It can be wholly decomposed under 120°C,and reserve nondecomposabl for a long period under entire desiccation.It is almost non - hygroscopic,and will gradually decomposed to emit oxygen and ozone after hygroscopic effect.It will be decomposed while being dissolved in the water and being heated.It is used as chemical reagent,oxidant,bleacher,deodorizer,and initiator for the polymerization of monomers.It has the particular advantage of having strong oxidation and of being easy and safe to handle.

2.Applicaton.
(1)Polymerization: Initiator for the emulsion or solution Polymerization of acrylic monomers etc.and for the emulsion co-polymerization of ,butadiene etc..
(2)Metal treatment: Treatment of metal surfaces(e.g. in the manufacture of  semiconductors;cleaning and etching of printed circuits),activation of copper and aluminium surfaces.
(3)Cosmetics: Essential component of bleaching formulations.
(4)Textile: Desizing agent and bleach activator - particularly for cold bleaching.
(5)Others:    

     - Chemical synthesis
     - Water treatment(decontamination)
     - Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg)
     - Disinfectant
     - Paper(modification of starch,repulping particularly for cold bleaching)

3.Transportation. 

All information is given in good faith,,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed.

4. Package. 
(1) In 25kgs net multiple paper bags with one PE bag inner
(2) In 25kgs net PE bags 
(3) In 25kgs net woven bags with two PE bags inner 
(4) In 1000kgs net big woven bags with one PE bag inner 
The above package is also with a pallet 1000kgs each.

5.Storage.
APS is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with APS.APS as damp powder or aqueous solution has a bleaching and slightly corroding effect.