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Ammonium Persulfate
Ammonium Persulfate
( Peroxosulphates )
Molecular Formula : (NH4)2S2O8
Molecular weight : 228.20
IMDG Page: 5126

HS Code: 283340
CLASS 5.1
UN No.:1444

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Product details

Description
Ammonium persulfate 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.

Transportation
Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5126,UN no.1444
Water hazards class 1(slight water hazard)
All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed.

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.

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.

Application
Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc..
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.
Cosmetics : Essential component of bleaching formulations.
Textile : Desizing agent and bleach activator - particularly for cold bleaching.
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)

ITEMS

SPECIFICATIONS

Appearance

white crystalline salt

Assay

98.5% w/w min

Active oxygen

6.9% w/w min

Residue on ignition(as SO4)

0.02% w/w max

Chloride and chlorate(as CL)

0.001% w/w max

Manganese(Mn)

0.00005% w/w max

Iron(Fe)

0.0005% w/w max

Heavy metals(as Pb)

0.0005% w/w max

Moisture

0.10% w/w max

Decomposition of the product as supplied

at above 60°C

Recommended storage temperature

Normal Temperature

Storage stability as from date of delivery

12 months

*There are commonly specifications and guidelines hereinbefore,and we can produce various special production according to customer's needs.

 


 
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