Fuels and Combustion
Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of

MgO & Na₂CO₃
BaSO₄ & NaCl
MgSO₄ & BaCl₂
MgCO₃ & NaCl

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Fuels and Combustion
Fussain

Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation
Is friable, charcoal like substance
Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal
All of these

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Fuels and Combustion
Anthracite coal

Is essentially a coking coal
Burns with short, bluish, yellow-tipped flame producing very little smoke
Ignites more easily than bituminous coal
Contains more volatile matter than bituminous coal

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