tongchem enterprise


DICYANDIAMIDE

  Using: it is a kind of material to produce melamine, and intermediate pan of synthetic drug, pesticides and coloring agent. It can be produced guanidine nitrate, sulfanilamide, sulfocarbamide, rubber accelerator, hardening of steel, fixing agent of dye printing, sizing agent, compound fertilizer, etc.

  Appearance: white crystal.

  Packing: net 25kg and 500kg plastic woven bags lined with plastic bags.

grade\spec-ification
Purity
min.%
Moisture max.%
Ash content max.%
Melting point
Calcium content max.ppm
Iron content max.ppm
Transp-arency
Special grade
99.9
0.20
0.03
210-212
100
2
100%
Superfine grade
99.5
0.30
0.05
209-212
200
10
100%
First grade
99.0
0.50
0.15
208-212
250
15
100%

Hydroquinone

  Grade: industrial grade and photo grade.

  Use: as a medium of polymers, monomer polymerization inhibitor, dyestuff and auxiliary, as anti - oxygen in food processing and medicine, petrol anti - coagulator, as well as film, photo and x - ray film developer.

  Package: 25Kg (net) , two PE film bags, a brown paper bag in the middle with a PP net bag outside.

    1. Photo grade ( GB10552-89)

Name of target
Target
Appearance
White or similar white crystal powder
Composition
99.0~101.0
Melt point
171175
Solubility
Up to standard
Burn ashes %
0.05
Heavy metal %
0.002
(Fe) %
0.002


 
Tongchem Enterprise