What is coal gas, coal tar and ammonia liquor for?
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13
Answer:
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Explanation:
Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. It may be applied to the affected area to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy.
Answered by
1
Answer:
These are the byproducts of destructive distillation of coal
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