Zinc pigment for waterborne corrosion coatings

A treated metallic zinc pigment comprising a surface treatment with an organic treatment chemical, wherein the treated metallic zinc pigment comprises 75-99.5% wt/wt % of a zinc pigment and 0.25-25% wt/wt % of an organic treatment chemical of Formula 5, having a vapor pressure of 0-0.045 mmHg at 20-30° C.,

• where X1, X2 and X3 are heteroatoms in a five-membered ring structure that are either C, O, N, or S atoms, are independent of each other, and may be connected by double bonds;
• R1 and R2 stand for independent organic groups that may be linked in a ring system or hydrogen atoms;
• R3, R4, and R5, are optional, independent organic groups or hydrogen atoms,
• wherein if a solvent is a component of the surface treatment, the treated metallic zinc pigment is subjected to drying.