Kuretake Gansai Tambi Watercolor Pan - Purple

Pigment Information

This color contains the following pigments:

PR63:1-Lithol Bordeaux

PV3-Methyl Violet 2B

BR12-Basic Red

Pigment Name

PR63:1-Lithol Bordeaux

Pigment Type

organic, monoazo

Properties

PR63:1 is a transparent deep bluish red pigment that is produced from a lake of calcium salt.

Permanence

PR63:1 has only fair lightfastness.

History

BONA lake pigments are dyes that are laked with a salt such as calcium, barium, strontium, or manganese. They have been in production as dyes since the early 20th century.

Pigment Name

PV3-Methyl Violet 2B

Pigment Type

organic, triarylcarbonium

Chemical Name

tetramethyl violet

Chemical Formula

C24H28N3Cl

Properties

Methyl Violet 2B is a staining, transparent violet dye. It turns yellow when exposed to strong acids.

Permanence

Methyl Violet 2B will fade with exposure to ultraviolet light.

History

Methyl Violet dyes are used in medical, biological, and pharmaceutical applications. Common Methyl Violets include Methyl Violet 2B, Methyl Violet 6B, and Methyl Violet 10B. They are often used as biological stains for cytology. The common name Gentian Violet is sometimes applied to this class of dyes. In very dilute form, Gentian Violet is often used as an antifungal agent, including in applications where there is contact with skin and other tissue. Paper impregnanted with Methyl Violet 2B is used to test pH because it turns yellow at pH 0.

Pigment Name

BR12-Basic Red

Chemical Name

astra phloxine lake