... , etc. Kirns Chemical Ltd. is the No.1 supplier of mineral nutrients from China- Reference: BASF, Bayer, Brenntag, DSM, Cargill, CJ, ... last decades and has become the largest supplier of trace minerals from China. Our professional team has an experience in mineral ... : passes testWhiteness: 85 minPartical size: powder & mini granular--------------------------------------------------- Sodium Bicarbonate