Quotation required from Coal tar suppliers

RFQ Description

1. Density by 200 C on waterless coal tar basis, kg/m31200 -12202. Mass fraction of water, %, not more 3.0 -4.03. Mass fraction of substances not soluble in toluol (&#945-fraction) on waterless coal tar basis, %, not more12.0 - 13.04. Mass fraction of substances not soluble in quinoline (&#9451-fraction) on waterless coal tar basis, %, not more6.05. Relative viscosity C 10 6. Mass fraction of naphthalene on waterless coal tar basis, %, not more7. Mass fraction of ash on waterless coal tar basis, %, not more0.08 - 0.108. pH of water extract, within limits 7.0-8.0,7.0-8.5 coal tar coal tar