Carbon nanotube (CNT)

Parameter

Average pipe diameter

10-25nm

Length

10um

Purity 

≥ 95%, ≥ 98%, ≥ 99.9%

Ash content 

≤ 5%, ≤ 2%, ≤ 0.1%

Specific surface area (BET)

110-250m ²/g

Vibration density

0.02-0.35g/cm ³

Moisture content

<1000 ppm“

Parameter

Average pipe diameter

 7-11nm

Length

5-20um

Purity 

 ≥ 90%, ≥ 98.5%, ≥ 99.9%

Ash content 

≤ 10%, ≤ 2%, ≤ 1.5%

Specific surface area (BET) 

200-300m ²/g

Vibration density

 0.01-0.2g/cm ³

Moisture content

<1000 ppm“

Parameter

Average pipe diameter

5-11nm, 7-12nm

Length

50-250um

Purity 

≥ 95%, ≥ 98%, ≥ 99.9%

Ash content 

 ≤ 5%, ≤ 2%, ≤ 0.1%

Specific surface area  (BET) 

250-350m ²/g

Vibration density

0.005-0.25g/cm ³

Moisture content

<1000 ppm“

Parameter

Average pipe diameter

2-4nm

Length

 ≥ 500um

Purity 

≥ 80%

Ash content 

≤ 15%

BET surface area 

≥ 450m ²/g

Vibration density

≤ 0.005g/cm ³

Moisture content

<1000 ppm“