English Name:

auramine O; auramine; canary yellow; pyoktanin yellow; pyoktanum auranum; amino tetrametric diaminodophenyl metal hydrogen chloride; c.i.41000

Other names: Golden amine, canary yellow o, basic light yellow, basic Yellow 2, basic light yellow o, basic Sophora yellow, basic Sophora yellow, 4,4 ‘- carbosamino bis (n, N-dimethylaniline) monohydrochloride, basic light yellow o, aminotetramethyldiaminobenzenese hydrochloride, canary yellow, Austria yellow

CAS No.: 2465-27-2

C17H22ClN3=303.83

Level: BS

Property: golden yellow powder. It is easy to be oxidized by hot acid and alkali to decompose ammonia and Michaelis ketone. It is yellow in ethanol solution, slightly soluble in cold water, light yellow in aqueous solution, and difficult to dissolve in ether. The melting point is 172-173 ℃, the water solution is easy to decompose when it is above 50 ℃, and the best temperature is below 40 ℃

Application: acid resistant bacteria fluorescence staining, salamander living body staining, plant tissue staining. Dyeing of hemp, paper, leather, fat, rayon and printing of cotton fabrics

Preservation: RT, dark

Property Yellow uniform powder, soluble in cold water, soluble in hot water was bright yellow, soluble in ethanol was yellow, its aqueous solution temperature over 70 ℃ will be decomposed into tetramethylbenzophenone, its aqueous solution when added to concentrated sulfuric acid was colorless, after dilution was light yellow.

Use: Low sunlight fastness. Mainly used in the dyeing of hemp, paper, leather, straw woven products, rayon, etc., also used in the printing and dyeing of cotton fabrics. Its color precipitation for the system wallpaper, color paper, ink and paint. Used for acetic acid fiber; mordant dyeing cotton, but the fastness is low, the color is bright, can be used to spell green or red, etc.. Can also be used for leather; paper; hemp and viscose dyeing. Alkaline can be used for coloring oil; fat; paint, etc.. It can also be used to prepare color deposits for ink

Incompatible with strong oxidizers and acids.

Occupational contraindications Patients with chronic respiratory disease should not perform this operation. [1]

Safety and labour protection pennants

(1) Engineering control containment system and ventilation.

(2) Fire prevention and explosion prevention measures: contact with flammable liquids is prohibited. Fire fighting and fire extinguishing methods: use water spray, carbon dioxide, dry powder, appropriate foam fire extinguishing agent.

(3) Caution for storage and transportation: Store in a cool, ventilated room. Store separately from oxidizer.

(4) Personal protective measures: Ventilation, local exhaust. Skin protection: Wear protective gloves and protective clothing. Eye protection: Wear safety goggles. Ingestion protection: Do not eat, drink or smoke while working. The industrial production method is produced by the condensation of N,N-dimethylaniline and formaldehyde, distillation, crystallization and purification, sulfur, ammonization of urea and ammonium chloride at 150-160℃, filtration and drying of the finished product. Raw material consumption (kg, t) N,N-dimethylaniline (98%) 110 formaldehyde (37%) 460 urea 700 sulphur (99%) 350 ammonium chloride 630 p-aminobenzenesulfonic acid (100%)