THIOUREA Technical Grade Thiourea is an organic compound that resembles urea but contains sulfur instead of oxygen; i.e., the molecular formula is CS(NH 2 ) 2 , while that of urea is CO(NH 2 ) 2 . Like...
( 9.65 exc vat) Used in the photographic industry as a restrainer in black and white developer formulas. It improves the differentiation between exposed and unexposed crystals of silver halide therefore...
Hydroquinone PLEASE NOTE : We can only deliver to registered UK businesses at non-residential addresses upon receipt of an offical purchase order. UK Mainland only THIS PRODUCT CANNOT BE SENT BY POST PLEASE...
citric_acid_en.pdf This mild acid is completely odourless in solution and can be used as a substitute for proprietary acetic acid stopbaths if the odour is irritating. Use at a rate of approximately 20g...