Coal

Calorific power superior almost to 5,000 kcal/kg

PCS different for 19 to 23MJ/kg (MJ = Mega jawel)

Volatile substance between 40 to 48%

Sulphate = 1, 8 to 3, 5%

Ash = 15 to 25%

2. This cool extracted Salkadamna Contains:  

This cool is extracted by SONICHAR Company in northern in Niger

Volatile substance (medium) = 23%

The ash content varies from 15 to 45%

The medium PCS = 5,00kcl/kg

1. Cool of surfaces B and A (know as contractual cool)

Please note that there are cools in Niger such: