Dye / Pigment Intermediates
50 products
Dye / Pigment Intermediates
Organic intermediates for dye and pigment synthesis
50 products
50 products
dye pigment intermediates
Tobias Acid (2-Naphthylamine-1-Sulfonic Acid)
CAS: 81-16-3
Tobias Acid is a naphthalene aminosulfonic acid used as a diazo component in the production of azo dyes for textiles, particularly direct dyes and acid dyes with blue and violet shade ranges. It reacts under diazotization conditions and couples with various hydroxyl and amino components to yield fast-color dyes. Chemzip provides industrial-grade Tobias Acid with consistent sulfonic acid content.
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Ultramarine Blue Pigment
CAS: 57455-37-5
Synthetic Ultramarine Blue (CI Pigment Blue 29) is a complex sodium aluminosulfosilicate pigment produced by calcining a mixture of kaolin, sodium sulfate, soda ash, sulfur, and reducing agents at high temperature to yield the characteristic reddish-violet to blue chromophore. It offers outstanding lightfastness, heat stability, and non-toxicity, widely used in architectural paints, plastics, printing inks, and laundry products. Chemzip supplies ultramarine blue in standard and fine grades.
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