Activated Carbon Powder
In Hong Kong

Appearance

Fine Black Powder

Methylene Blue  Value mg / gm.

220 mg / gm.

240 mg / gm.

280 mg / gm.

320 mg / gm.

350 mg / gm.

400 mg / gm.

Iron Contents

250 ppm

250 ppm

200 ppm

100 ppm.

80 ppm.

70 ppm.

pH

6.5 - 7.5

6.5 - 7.5

6.5 - 7.5

6.5 - 7.5

6.5 - 7.5

6.5 - 7.5

Moisture

5%

5%

5%

5%

5%

5%

Bulk Density

260 g / 1

250 g / 1

230 g / 1

200 g / 1

200 g / 1

200 g / 1

Ash Contents

3%

2.5 %

2 %

1.5 %

1 %

0.8 %

Acid Soluble Matter

1.5% w / w

1.5% w / w

0.8% w / w

0.5% w / w

0.3% w / w

0.3% w / w

Water Soluble Matter

1.5% w / w

1% w / w

0.5% w / w

0.2% w / w

0.1% w / w

0.1% w / w

Chloride, Sulphate &
Heavy Metals

Passes U.S.P.

Passes U.S.P., B.P.

Appearance

Fine Black Powder

Methylene Blue  Value mg / gm.

150 mg / gm.

200 mg / gm.

250 mg / gm.

300 mg / gm.

350 mg / gm.

Iron Contents

1000 ppm

1000 ppm

800 ppm

600 ppm.

500 ppm.

pH

9 to 11

9 to 11

9 to 11

9 to 11

9 to 11

L.O.D.

12%

10%

10%

10%

8%

Ash Contents

12 - 15%

12 - 15%

10 - 12%

10 - 12%

10 - 12%

Acid Soluble Matter

6.5% w / w

6.5% w / w

6.0% w / w

5.0% w / w

4.5% w / w

Water Soluble Matter

5.0% w / w

5.0% w / w

4.0% w / w

4.0% w / w

4.0% w / w