Superiority:
Hangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals.
We could give you:
1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
All we want is win-win business. Send yr. inquiries, you will get it!
Details:
"Appearance Colorless needles or as white to off-white free flowing powder
Identification Pass test
Assay 99-101%
Melting point 132~135℃
Spectrometry A propan-2-ol solution(1 in 4000000) shows absorbance max at 252-266nm.
Test for double bonds Passes testing
Solubility Slightly soluble in water, soluble in ethanol
Water 0.5% max
Residue on ignition 0.2% max
Aldehydes 0.1% max(as Formaldehyde)
Arsenic 3ppm max
Lead 2ppm max
Mercury 1ppm max
Heavy metals(as Pb) 10ppm max"