Features Pigment Yellow 36, C. I. Number 77955, 4ZnO·K2O·4CrO3·3H2O: Also called zinc yellow, this pigment is identified as Pigment Yellow 36, as opposed to the lithopone version incorporating barium sulfate, which is Pigment Yellow 36:1(C. I. No. 77956). It is a bright, green shade of yellow made by the precipitation of hydrated zinc potassium chromate from the reaction of sodium bichromate with zinc oxide and potassium chloride. Used primarily in corrosion-inhibiting coatings. Application Inorganic Pigment for Corrosion Resistant Coatings Package 25kgs or 20kgs per paper bag/drum/carton. *Customized packaging available on request. QC and Certification 1.Our R&D laboratory features equipment such as Mini Reactors with Stirrers, Pilot Reverse Osmosis System and Drying Units, making our technique in the lead. We have standard QC system which meets EU standard and requirements. 2.With the quality management system certificate of ISO9001 and environmental management system certificate of ISO14001, our company not only sticks to the strict quality-control system according to the international standard, but also focuses on protecting the environment and promoting the sustainable development of itself and the society. 3.Our products meet the stringent mandatory requirements of REACH, FDA, EU's AP(89)1 &/or EN71 Part III. Physical and Chemical Properties Product Name CI NO Oil Absorption ZnO Content CrO3 Content Fastness Properties           Acid Resistance Alkali Resistance Alcohol Resistance 109 Zinc Chrome Yellow PY 36 ≤40 61-68 19-22 5 5 5 309 Zinc Chrome Yellow PY 36 ≤40 68-72 17 5 5 5 509 Zinc Chrome Yellow PY 36 ≤40 35-40 43 5 5 5