20% off $99 or 25% off $179 plus Free Shipping on orders $99 or more!* Use code CDGH Expires 05/27/13 Learn More>

Art Room Aid - Fund an Art Project - Learn More

Browse more:

« See more Grumbacher Academy Acrylics

00605-3540 — Cadmium Red Hue

Near professional quality at affordable price. Pure pigments, including cadmiums. Hues carefully formulated to provide authenic tints and right masstone, undertone, and mixtures. Strong adhesion and "buttery" texture.

Cadmium Red Hue

This color contains the following pigments:

PO16—Dianisidine Orange
PR112—Naphthol Red AS-D

PO16—Dianisidine Orange

Pigment Type

organic, disazo

Chemical Name

n/a

Chemical Formula

C₃₄H₃₂N₆O₆

Properties

Dianisidine Orange is a semi-opaque orange dye that can be laked to form a pigment. This pigment ranges from yellowish to reddish orange in different laked forms.

Permanence

Dianisidine Orange has only fair lightfastness.

Toxicity

A Japanese study in which rats were given large daily doses of Dianisidine Orange revealed no acute toxicity or mutagenic effects.

History

Dianisidine Orange is used mostly in coloring plastics and in inks, in applications where safety is important but lightfastness and longevity are not paramount.

Alternate Names

Benzidine Orange R

^ back to top

PR112—Naphthol Red AS-D

Pigment Type

organic, monoazo

Chemical Name

n/a

Chemical Formula

C₂₄H₁₆Cl₃N₃O₂

Properties

This Naphthol Red is an intense scarlet red pigment that is heavily staining. It has an average drying time. It is semi-transparent and has relatively poor covering power.

Permanence

This Naphthol Red has been rated as having excellent lightfastness under ASTM testing, but other testing methods have demonstrated some tendancy for the color to fade with exposure to strong ultraviolet light. It has been considered a replacement for less lightfast naphthol reds such as PR3. Not suitable for exterior use.