Chemical type:

Azo   

Chemical Formula:

C18H13N3Na2O8S2

CAS No.

3734-67-6

Molecular Weight:

509.430

EINCES No.

223-098-9

C.I.

18050

Chemical structure:

Appearance:

Shade:

Solubility (90°C):

Moisture:

Insoluble:

Fineness:

pH value:

Red powder

Similar to the standard

50g/l

≤5.0%

≤0.1%

≤10%

9.0-1.0

Property:

Acid red 1 is a red powder, soluble in water solution for the big red slightly soluble in alcohol and fibrinolytic-and do not dissolve in organic solvents. Case of concentrated sulfuric acid was blue in red, its dilution was more yellowish red; Case of concentrated nitric acid solution was orange, and then orange; Case of concentrated hydrochloric acid to form a red sediments, dissolved after dilution. Their solution was concentrated hydrochloric acid plus red; Sodium hydroxide solution was added orange brown. Staining evening so that the copper ions and the color blue with dark; Iron case with the color blue and shallow. Leveling well.

Application:

Acid red 1 mainly for wool fabric staining. Mixing strong, preferably with light, color, and can directly in fabric, nylon and silk fabric printing. Can also be used to create color amylin and cosmetics, paper, soap, and wood manufacturing color ink used. Its role barium salts can be organic pigments, but also for plastics and medicine.