Zinc Borate 3.5 H2O 1)MF: 2ZnO 3B2O3 3.5H2O 2)Purity:ZnO:37-40%;B2O3:46-49%. 3)Appearance:White Powder 4)Package:25kgs/bag

Zinc Borate 3.5H2O

1)Physical and Chemical Properties:

Molecular Formula: 2ZnO 3B2O3 3.5H2OMolecular Weight 434.68Appearance: white crystal powderRelative Density: 2.67Melting Point: 980Toxicity: <LD50> 1g/KgIndex of Refraction: 1.58

2)Usage:

Zinc Borate is widely used in producing polyolefine,rubber,hydroxybenzene resin,saturation insaturation resin, paper, fabric,carpet,paint,china,glaze, antiseptic and pesticide.Zinc Borate as upper-fine flame retardant, its character of smoke abatement is better than any other flame retardant, in producing polyolefine can replace antimony trioxide. Different model Zinc Borate has different usefulness.  

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 , %	48.0-49.0
Loss on ignition,%	13.5-15.5
Fineness (Residue on 45um sieve ), % ≤	0.1
Pb %  ≤	0.0005
Specific gravity, g/cm3	2.67
Melting pointoC;	980
Temp. of dehydration oC>	320
Refractive index	1.58

4)Packing Details:

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:

Be stored in a clean and dry storehouse, don't to let it be rained on, no mix storage and transportation with acids is allowed.

Green Environmental Flame Retardants Zinc Borate