DESIGNERS GOUACHE/ALIZ RED MADR 14ML

Item #:00801-3712
View Product Details
click image to zoom in
Alizarin Rose Madder
Alizarin Rose Madder
Current price:$0.00Blick’s Best Price. This icon indicates that the price shown is the lowest possible price offered for an item, therefore additional discounts cannot be applied.

Save For Later

  • My Wish Lists
  • My BlickU List(s)
AP Non-Toxic.

Products bearing the AP seal of the Art & Creative Materials Institute, Inc. (ACMI) are certified non-toxic. A product can be certified non-toxic only if it contains no materials in sufficient quantities to be toxic or injurious to humans, or to cause acute or chronic health problems.

Product Details

Color:
Alizarin Rose Madder
Description:
Designers Gouache
Size:
14ml (.47 oz)
Format:
Tube
No.
006
Series:
1

Pigment Information

This color contains the following pigments:

PR49:1-Beta Naphthol Red

PV1-Rhodamine B


Pigment Name

PR49:1-Beta Naphthol Red

Pigment Type

organic, monoazo

Chemical Name

barium monoazo red lake

Chemical Formula

Properties

PR49:1, a barium salt of monoazo naphthol red, has a yellowish red tone.

Permanence

Pigments in the beta naphthol group are considered moderately lightfast. The naphthol AS pigments, which are more permanent, have largely taken their place in artist paints.

Toxicity

History

The Beta Naphthol colors were developed in the late 19th century. PR49 has been used in paints, plastics, printing inks, and cosmetics. Most of the PR49:1 pigment manufactured in the United States is used for printing and packaging applications.


Pigment Name

PV1-Rhodamine B

Pigment Type

organic, fluorone dye

Chemical Name

Rhodamine B

Chemical Formula

C28H31N2O3Cl

Properties

Rhodamine B is a staining violet dye that has flourescent properties. It is extremely soluble in both water and alcohol. In art materials, it is laked as a pigment.

Permanence

Rhodamine B, like all fluorescent dyes, is not considered to be lightfast. It is recommended for permanent works of art only if they can be adequately protected from exposure to ultraviolet light.

Toxicity

The fluorescent dye Rhodamine B is toxic, and its use is banned in food, textiles, and cosmetics. It is harmful if swallowed, inhaled, or absorbed through the skin. It has been shown to be carcinogenic in rats when injected subcutaneously, producing local

History

Rhodamine B, discovered in 1887, is used as a staining fluorescent dye in the biological sciences, for microscopy. It is also used as a laser dye. Because of its low cost, high tinting strength, solubility in water and alcohol, and relative stability for a fluorescent, it has sometimes been used as a food colorant, even though its use in food and cosmetics has been banned in most countries for many years. There have been several highly publicized recalls of food and cosmetic products contaminated with Rhodamine B.