from 1:53 kg Aluminium oxide CAI203) it's 4.8x10^24 molecules are removed. calculate wt & no. of molecules in remaining sample.
Answers
Answer:
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
Explanation:
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
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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
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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
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