Dyes are intensely colored or fluorescent organic substances only, which impart color to a substrate by selective absorption of light. Pigments are colored, black, white or fluorescent particulate organic or inorganic solids which usually are insoluble in, and essentially physically and chemically unaffected by, the vehicle or substrate in which they are incorporated.
Q：Is Rhodamine B safety?
A：A textile dye, Rhodamine B, is toxic to the human body.
May 29，2024 Dyes and Pigments
The introduction of p-Phenylenediamine
PPD has a strong protein binding ability to penetrate deeply into the hair. It is widely used as an oxidizable hair dye for its free availability and low cost.
May 14，2024 Dyes and Pigments
Related Information about Methylene Blue
Methylene Blue is used as an antidote to drug-induced methemoglobinemia and in surgical sciences for staining the surgical field.
Nov 29，2023 Dyes and Pigments
What is Dicyclohexylamine?
Dicyclohexylamine is a clear yellow liquid with a faint fishlike odor. It is used as acatalyst for paint, varnishes and inks. May be toxic by ingestion. Severely irritates skin, eyes and mucous membra
Oct 25，2023 Dyes and Pigments
What is p-anisidine?
p-Anisidine is a yellow to brown crystalline (sand-like) solid with a fishy odor. It is used as an intermediate in making dyes.
Oct 20，2023 Dyes and Pigments
Rhodamine B: Applications, toxicity and metabolism
Rhodamine B is an organic chloride salt used as a fluorochrome. Rhodamine B has a role as a fluorochrome, a fluorescent probe and a histological dye.
Jun 6，2023 Dyes and Pigments
P-phenylenediamine Side effect
Acute (short-term) exposure to high levels of p-phenylenediamine may cause severe dermatitis, eye irritation and tearing, asthma, gastritis, renal failure, vertigo, tremors, convulsions, and coma in h
Mar 6，2023 Dyes and Pigments
Application of Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonate
Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonate is a water-soluble reagent used for the determination of hydrogen peroxide by enzymatic spectrophotometry.
Nov 3，2022 Dyes and Pigments
Uses and chemistry of Tartrazine
Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Yellow 5 Lake
Jul 19，2022 Dyes and Pigments
Uses and Side effects of Methylene blue
Methylene blue is commonly used in diagnostic procedures and is also used to treat a number of medical conditions (see Facts about methylene blue box).
Jul 13，2022 Dyes and Pigments