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High Purity Aluminum Hydroxide
Introduction

By the Bayer process, we produce High Purity Aluminum Hydroxide (Gibbsite) which is a white powder.

The purity of this series is with 99.9% and 99.99%, and metal impurities such as iron are extremely low.

AH-3N product introduction: Appearance is white crystal powder, uniform particle size, high purity, stable chemical properties, good crystal phase stability, and good sintering activity. It’s the excellent raw material for the preparation of optical glass additives and high-purity aluminum salts.

AH-4N product introduction: Appearance is white crystal powder, uniform particle size, high purity, stable chemical properties, good crystal phase stability, and good sintering activity. It’s the excellent raw material for

the preparation of high purity activated alumina, petroleum, chemical catalyst, lithium ion battery and other industries.

Packing:

Big bag (PP+PE)  500KG

Small bag  (PP+PE)  25KG  (40 bags on one pallet)

Product

Si
ppm

Fe
ppm

Na
ppm

Ca
ppm

Mg
ppm

Cu
ppm

Cr
ppm

Ti
ppm

Average Particle 
Size
D50(um)

BET Surface Area
(m2/g)

Pore Volume
 (ml/g)

AH-3N<15<1<2000<3<1<1<2<135-45

AH-3NF<48<50<1600<50<30<30<20<101-3

AH-4N<20<2<50<3<1<1<2<115-20>250>0.3
AH-4NS(milled)<20<2<50<3<1<1<2<11-3>280>0.3
Note

1.AH-3N and AH-3NF areα-Al(OH)3; AH-4N and AH-4NS areβ-Al(OH)3
2.Pore volume and BET surface value are measured after the product roasting 500 ℃ keeping 90 minutes.
3. Average Particle Size is analyzed by Bettersize Laser 9300SE.


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