5N 99.999% high purity alumina

Short Description:

High purity alumina powder, also known as alumina, with molecular weight of 102, is a white amorphous powder, commonly known as bauxite

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Basic overview

High purity alumina powder, also known as alumina, with molecular weight of 102, is a white amorphous powder, commonly known as bauxite

Characteristic

1. Chemical corrosion resistance

2. High purity alumina with alumina content greater than 99%

3. High temperature resistance, normal use at 1600 ℃, short-term 1800 ℃

4. Resistant to sudden cooling and heat, not easy to crack

5. It is formed by grouting with high density

Our company alumina description

our company 5N 99.999% high purity alumina produced by alkoxide hydrolysis,through strict control of raw materials and production process, the high purity alumina powder has the advantages of high purity and high density

Specifications

5N 99.999% high purity alumina				4N high purity 99.99% and 5N high purity 99.999% alumina polishing powder
Type		XC002	XC002A	CX005B	CX005C
Al₂O₃ Content	%	≥99.999%	≥99.999%	≥99.99%	≥99.999%
Phase state		α-Al₂O₃	α-Al₂O₃	α-Al₂O₃	α-Al₂O₃
Appearance		White powder	White powder	White powder	White powder
L.I.O(%)		---	≤0.5	≤0.5	≤0.5
B		---	≤0.03	---	---
Na	ppm	≤2	≤1.12	≤15	≤2
Fe	ppm	≤2	≤0.8	≤10	≤2
Ca	ppm	≤1	≤0.51	≤2	≤1
Si	ppm	≤2	≤1.2	≤10	≤2
Cu	ppm	≤1	≤0.28	≤2	≤1
Mg	ppm	≤1	---	≤10	≤1
Ti	ppm	≤1	---	---	≤1
Cr	ppm	≤1	---	---	≤1
K	ppm	---	≤0.57	---
Ni	ppm	---	0.12	---
Co	ppm	---	≤0.09	---
Zn	ppm	---	≤0.27	---
D₅₀（Size）	um	10-30	20-40	20-50	10-30
Apparent Density	g/cm³	0.3-0.5	0.4-0.7	0.4～0.6	0.4～0.6
Specific Surface Area	m²/g	3-8	6-12	4～20	3-8
Sintered Density	g/cm³	---	---	---
Application		Sapphire crystal	laser crystal	metallographic polishing,stainless steel mirror polishing,titanium polishing, paint polishing,resin polishing

Application

1) 4N 99.99% high purity alumina series is mainly used for high-pressure sodium lamps, new luminescent materials, special ceramics, advanced coatings, tricolor, catalysts and some high-performance materials

2) 5N 99.999% high purity alumina series is mainly used for artificial sapphire crystal, advanced ceramics, PDP phosphor and some high-performance materials. As the raw material of sapphire crystal, it can provide powder, particle, block or column according to different requirements.