Potassium iodate for calibrators and analytical grade arsenic trioxide, potassium chlorate, perchloric acid (700 g/L), ammonium persulfate
, tetraammonium cerium (IV) sulfate dihydrate, sodium chloride, and sulfuric acid were obtained from Wako Pure Chemical Industries.
(APS, Merck) was used without purification.
(APS), hydrochloric acid (HCl), iodine ([I.
2-acrylamido-2-methylpropanesulfonic acid (Merck, Darmstadt, Germany), N',N'-methylene bisacrylamide and ammonium persulfate
(Fluka, Buchs, Switzerland) were of analytical grade and used without further purification.
Graft copolymers of starch and polyacrylamide (PAAm) were prepared by reactive extrusion using a co-rotating twin-screw extruder and ammonium persulfate
In 2014, ammonium persulfate
accounted for the major market share in terms of volume with increasing demand from various end-use applications such as polymers and electronics.
5%, Acros Organics), NaOH pellets (Sigma Aldrich), ammonium persulfate
(APS, 98%+, Sigma Aldrich), and potassium disulfite (KDS, Sigma Aldrich) were used without further purification.
In order to obtain the objectives, a nanocomposite containing poly (acrylamide-co-acrylonitrile) and silver nanoparticles was firstly synthesized by using ammonium persulfate
as the initiator and methylene bisacrylamide as the cross-linker.
2] nanocomposite has been prepared in the aqueous media using hydroxypropylcellulose as a steric stabilizer and ammonium persulfate
as an oxidant then dedoped with NH3(0.
3]) and reacting them with strong oxidizing agents such as ammonium persulfate
It is comprised of a peroxide-based developer component containing, by weight, approximately 6-12% hydrogen peroxide; a powder activator component comprised of 40-80% by weight of an alkali metal persulfate selected from the group consisting of sodium persulfate, potassium persulfate and ammonium persulfate
, an alkalizing agent component in an aqueous vehicle comprised of 3-25% of an alkalizing agent by weight; and a colorant present in an amount of from 0.
After surfacing mill and polishing the surfaces were treated with a 20% Ammonium Persulfate