Bismuth vanadate pigments

Details Bismuth vanadate pigments Bismuth vanadate pigments

C - Chemistry, Metallurgy

09

C

C09C 1/00 (2006.01) C08K 3/24 (2006.01) C09C 3/06 (2006.01) C09D 7/12 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2217244

Bismuth vanadate pigments of the formula (Bi4V2O11)1-x' (BiVO4)x, where 0 ~ x < 0.9, further comprising from 0 to 0.5% by weight of phosphorus in the form of bismuth phosphate, are characterized by a CIELAB hue angle of from 64 to 91°, a chroma of from 72 to 95 and a lightness ~ 62 (measuring angle 45°, standard illuminant D65).

Pigments de vanadate de bismuth de formule (Bi4V2O11)1-x' (BiVO4)x, où 0 ~ x < 0.9, renfermant de 0 à 0,5 % en poids de phosphore sous forme de phosphate de bismuth; ils sont caractérisés par un angle de teinte CIELAB de 64 à 91 degrés, un chroma de 72 à 95 et une luminosité de ~ 62 (mesurée à un angle de 45 degrés, avec illuminant normalisé D65).

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