Acid Green 25 Chemical Properties

Melting point:

235-238 °C(lit.)

Colour Index 

61570

color 

Bluish green powder

Water Solubility 

36 g/L (20 ºC)

Merck 

14,252

InChIKey

FPAYXBWMYIMERV-UHFFFAOYSA-L

LogP

-1.966 at 20℃

EPA Substance Registry System

C.I. Acid Green 25 (4403-90-1)

Safety Information

Hazard Codes 

N

Risk Statements 

51/53-36

Safety Statements 

24/25-61-26

RIDADR 

UN 3077 9 / PGIII

WGK Germany 

2

RTECS 

DB5044000

HS Code 

32041200

Hazardous Substances Data

4403-90-1(Hazardous Substances Data)

Toxicity

LD50 orl-rat: >10 g/kg GTPZAB 28(7),53,84

MSDS

• Language:English Provider:Disodium 2,2'-(9,10-dioxoanthracene-1,4-diyldiimino)bis(5-methylsulphonate)
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich

Acid Green 25 Usage And Synthesis

Chemical Properties

dark green powder

Uses

Acid Green 25 (cas# 4403-90-1) is an organic acid dye. Acid green 25 can undergo colour when co-intercalated with acid yellow 25 into the interlayer of ZnAl layered double hydroxides.Dyes and metabolites.

Uses

For nylon sutures: Fed. Regist. 42, 52395 (1977). Permitted for use in drugs and cosmetics, excluding use in eye area: ibid. 47, 49628 (1982).

Preparation

(a) ?anthracene-1,4,9,10-tetraol?or 1,4-Dihydroxyanthracene-9,10-dione and anthracene-1,4,9,10-tetraol?mixture?with 2 moles of p-Methylaniline in the presence of boric acid condensation; (b) 1,4-Dichloroanthracene-9,10-dione and 2 Moore’s p-Methylaniline?condensation, its product (C.I. Solvent Green 3, C.I. 61565) products, and translate into sodium salt.

General Description

Fine black or green powder.

Air & Water Reactions

Slightly soluble in water.

Reactivity Profile

Acid Green 25 is incompatible with strong oxidizing agents. .

Fire Hazard

Flash point data for Acid Green 25 are not available. Acid Green 25 is probably combustible.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic by ingestion. Askin and severe eye irritant.
When heated to decomposition it emits very toxic fumesof NOx, SOx, and Na2O.

Properties and Applications

blue light green. Green powder. Soluble in water, no solution at room temperature gather the tendency. Soluble in o-chlorophenol, slightly soluble in acetone, ethanol, Pyridine, insoluble in chloroform, toluene. The strong sulfuric acid dyes shows blackish green color, diluted Tracy turn blue; In nitric acid are brown. The little blue water solution, and a blue hydrochloric acid; Add sodium hydroxide is blue light green. Used for wool, polyamide, silk and their blended fabric dyeing and printing. Can also be used in leather, paper, cosmetics, soap, wood, electrical-controlled aluminum and biological color.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	6	3	2	4	2	1	4	3-4
AATCC	5	4	4	3	3	3	4	4

Purification Methods

Purify it by salting out three times from an aqueous solution with sodium acetate, followed by repeated extraction with EtOH [McGrew & Schneider J Am Chem Soc 72 2547 1950]. It is a green powder that is slightly soluble in Me2CO, EtOH and pyridine. It is soluble in conc H2SO4 to give a blue solution that becomes turquoise on dilution. [Allen et al. J Org Chem 7 63 1942, Beilstein 14 H 725.]

Acid Green 25(4403-90-1)Related Product Information

• Ethyl 2-(Chlorosulfonyl)acetate
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• Folic acid
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• ACID BLUE 161, PURE
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• ACID GREEN 3
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• ACID RED 88
• Acid Orange 67
• Acid blue 1
• ACID BLUE 92
• Acid Red 92
• Ascoric Acid
• 2,3-Dimethylaniline
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