Molybdate red

Important twentieth-century developments include the addition of Molybdate Red to the series of inorganic synthetic coloring matters in 1936 Titan Yellow followed in 1960. 

P.R.3 is very likely to bloom in baking enamels. At 120°C, the concentration limit for blooming is 2.5% beyond about 140°C, blooming occurs with certainty, irrespective of the concentration. Therefore, only full shades of P.R.3 are used to color baking enamels, and only where application temperatures are low. The pigment is used extensively in combination with Molybdate Red. 

Very lightfast red shades can be produced by combining P.R.14 with Molybdate Red. P.R.112 is a member of the same class of pigments, behaves similarly, and is particularly suitable as a partner for P.R.14 in blends which approach the colors of Toludine Red (P.R.3) but provide much improved lightfastness and weatherfastness. 

Synonyms molybdate orange molybdate chrome orange moly orange molybdate red chrome vermilion... 

Chromate pigments chrome green molybdate red chrome orange chrome yellow, zinc yellow, alkaline earth chromates ... 

The most important chromate pigments include the lead chromate (chrome yellow) and lead molybdate pigments (molybdate orange and molybdate red) whose colors range from light lemon yellow to reds with a blue hue. Chrome yellow,... 

Molybdate red and molybdate orange [12656-85-8], C.I. Pigment Red 104 77605, are mixed-phase pigments with the general formula Pb(Cr,Mo,S)04 [3.131]. Most commercial products have a Mo03 content of 4-6 % (refractive index 2.3-2.65, density 5.4-6.3 g/cm3). Their hue depends on the proportion of molybdate, crystal form, and particle size. 

Uses. Molybdate orange and molybdate red are mainly used in paints, coil coatings, and for coloring plastics (e.g., polyethylene, polyesters, polystyrene). The temperature-stable grades are the most suitable for coil coatings and plastics. 

Total world production of molybdate orange and molybdate red in 1996 was 13 000 t. 

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