BASIC BLUE 24 Property

Melting point:

190°C (dec.) (lit.)

Boiling point:

100 °C

Density 

1.1964 (rough estimate)

refractive index 

1.6000 (estimate)

Colour Index 

52030

form 

Crystals or Crystalline Powder

color 

Green to dark brown

CAS DataBase Reference

1934-16-3

Safety

Safety Statements 

24/25

WGK Germany 

3

HS Code 

32041300

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

H332Harmful if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P322Specific measures (see …on this label).

P330Rinse mouth.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

BASIC BLUE 24 Chemical Properties,Usage,Production

Chemical Properties

green to dark brown crystals or crystalline powder

Preparation

by heavy chromate salt in sodium content and save treatment 2-Methyl-4-nitroso-N-methylaniline, transforming it into the content and sulfonic acid (2 – Amino-5 – acetic acid aminophenylthio), this product then through heavy chromate salt and N-ethyl-2-methylbenzenamine hydrochloride processing, into a unique of sulfur acid amine generation, then use heavy chromate salt and copper sulfate closed loop and oxidation, Finally,?the?zinc chloride?salt?precipitation

Properties and Applications

bright blue. Soluble in cold water for violet blue, soluble in hot water for shallow blue, soluble in ethanol for green light blue. The strong sulfuric acid for yellow green, diluted to blue. Dye with sodium hydroxide solution into a chocolate brown, have precipitation.