Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A yellowish, white, or reddish-gray crystalline powder, NH2C6H4C6H4NH2, used in dyes and to detect blood stains.
Century Dictionary and Cyclopedia
- n. The common name for para-diaminodiphenyl, one of the aromatic bases having the formula NH2.C6H4–C6H4.NH2. It is an important raw material in the preparation of many of the direct cotton colors.
Wiktionary
Etymologies
- benz(ene) + -id(e) + -ine2. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The three most widely used culprits -- Yellow 5, Yellow 6 and Red 40 -- contain compounds, including benzidine and 4-aminobiphenyl, that research has also linked with cancer.”
The Huffington Post: EatingWell: Trick or Treat: The Hidden Health Risks of Food Dyes
“Moreover, like Red 40 and Yellow 5, it is contaminated with illegally high levels of benzidine and 4-aminobiphenyl, known carcinogens.”
The Huffington Post: Michael F. Jacobson: Color Me Skeptical: Tartrazine-Free Macaroni and Cheese
“Besides luminol, we have many other type of chemicals such as teramethal benzidine.”
“Safety note: Two dyes in Table G are based on the chemical benzidine.”
“These amido compounds, of which aniline, toluidine, benzidine, naphthylamine are familiar examples, are characterised by containing the molecular group NH {2}, which radicle is built up of the two elements nitrogen and hydrogen.”
The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student
“If necessary to retard the dyeing from the commencement, then an assistant mordant is added to the dye-bath, in the shape of soda crystals or phosphate of soda for the benzidine (p. 081) colours on cotton; bisulphate of soda or Glauber's salt in dyeing with azo colours or acid colours on wool; or tartar may be used in most cases with good effect, causing the wool to have a softer feel.”
“Charged the paper with a benzidine dye and an alkaline iodide.”
“Chemicals of Concern list, issuing new rules for the use of the chemicals, and banning or limiting the manufacturing of HBCD and benzidine dyes.”
“The chemicals include benzidine dyes, hexabromocyclododecane (HBCD, a category of flame retardants) and nonylphenol/nonylphenol ethoxylates (NP/NPEs).”
“Blotting was performed as explained above except that after incubation with primary antibody, the blots were developed using diamino benzidine/H”
Lists
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