The second is to take a small amount of sample into the lime water, the ammonia smell is not true, and the ammonia smell can be smelled by other fertilizers or nitrogen fertilizers with other substances.
The third is to ignite a few pieces of charcoal, or to burn iron or tiles with fire, and put a little urea on it to burn, white smoke, pungent ammonia smell, and quickly turn into water as true urea; When it is burning, it is slightly boiling, and it emits a "beep" sound, which indicates that ammonium sulfate is added, which is inferior; if it emits hydrochloric acid, it indicates that it is mixed with ammonia chloride; if it burns, it will have a slight flame. , in which ammonium nitrate is blended.
HCPE Resin (coating type) Description
HCPE resin (coating type) is a irregular resultant after depth chlorination with the low molecular weight polyethylene (PE) . Generally the quality score of chlorine is bigger than 65%, and it is the main film-forming substances as new generation antiseptic paint. It has the following characteristics.
(1) Compared with the CPVC, the solubility is good, and more resins can mix with it.
(2) Compared with the CSM, the advantage of HCPE is single-component packaging, it do not use lead oxide, tribasic lead curing agent containing heavy metals. There is no toxicity, and has a broader range of applications.
(3) Compared with the chlorinated rubber, HCPE as the base material of protective coatings retains the advantage of chlorinated rubbers, And overcome the faults of chlorinated rubber exist unsaturated double bond and light chemical reaction and chlorinated degradation sensitive.
(4) Compared with ordinary HCPE, the viscosity is low, take the Tu-4 coating cup, the quality score as the toluene solution 20%, under the room temperature determines, is not bigger than 50S; Ordinary HCPE viscosity generally above 50S.
(5) Made of high-solids coatings, reduces the coating cost greatly, and the coating has a fast-drying nature, and has a better compatibility with other resins. LHCPE film features: The coating made by HCPE has a high solid content. excellent resistance to acid, alkali , salt, etc. It have so excellent corrosion resistance properties; can be used under 15~50°C; film drying quickly.
Polyethylene Resins,Coating Type HCPE Resin,HCPE Coating,HCPE Resin
Shandong Gaoxin Chemical Co.,Ltd , http://www.gaoxinchem.com