Ever Since the establishment of gas Works it has been considered a matter of great impbftpnee to find some useful application fdr their waste products, principally the coal tar The old custom was ...
THE term 'chemical industries' in its wider significance comprises all those manufactures in which the formation of the products sold depends on chemical interactions and is certainly not confined ...
Shampoos for psoriasis may include active ingredients like salicylic acid, coal tar, or clobetasol propionate. Psoriasis is a long-term inflammatory condition that affects the skin and other parts ...