intro:
1)Physical and Chemical Properties:
Molecular Formula: 2ZnO 3B2O3 3.5H2O
Molecular Weight 434.68
H.S Code:2840200000
CAS No.:1332-07-6
EINECS No.:215-566-6
Appearance: white powder
Relative Density: 2.67
Melting Point: 980
Toxicity: <LD50> 1g/Kg
Index of Refraction: 1.58
2)Usage:
At present countries over the world get interest in 3.5 Water Zinc Borate, and is widely used to manufacture plastic,PVC,PE,PP,EVA,ABS,epoxide resin,unsaturation resin,phenolic resin,urethane foam. It is also used in rubber Industry such as neoprene,polybutadiene rubber,Buna-N rubber and paper,textile. In special plastic industry, it can replace diantimony trioxide and effectively prevent from smoke. It also can take the place of zinc chromate as primer,ceramics glaze,pesticide.
3)Specifications:
|
Item/Grade
|
Zinc borate ( 2ZnO.3B2O3 3.5H2O)
|
|
Excellent grade
|
First grade
|
|
Whiteness
|
99
|
95
|
|
Surface water % ≤
|
0.5
|
1.0
|
|
Particle size, um
|
3-5
|
3-5
|
|
ZnO, %
|
37.0-40.0
|
|
B2O3 , %
|
45.0-48.0
|
|
Loss on ignition,%
|
13.5-15.5
|
|
Fineness (Residue on 45um sieve ), % ≤
|
0.1
|
|
Specific gravity, g/cm3
|
2.67
|
|
Melting pointoC;
|
980
|
|
Temp. of dehydration oC>
|
320
|
|
Refractive index
|
1.58
|
4)Packing Details:
Zinc Borate is packed in Net weight: 25Kg, paper-plastic composite bag with PE film interlined, protect from damp and hook.18MT-20MT will be loaded in 1*20'fcl container
5)Storage:
Zinc Borate is stored in a clean and dry storehouse, don't to let it be rained on, no mix storage and transportation with acids is not allowed. |
