Basic information Safety Supplier Related
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Acid Green 25

Basic information Safety Supplier Related

Acid Green 25 Basic information

Product Name:
Acid Green 25
Synonyms:
  • Alizarin green, Dye content 95%
  • Alizarin green, AR
  • c.i.acidgreen25
  • d&cgreen
  • d&cgreen5
  • d&cgreen8
  • Disodiumsaltof2,2’-[9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis-[5-methylbenzenesulfonicacid]
  • zelenalizarinovabrilantnig-extra
CAS:
4403-90-1
MF:
C28H20N2Na2O8S2
MW:
622.58
EINECS:
224-546-6
Product Categories:
  • Organics
  • Aminoanthraquinones
  • Anthraquinones
  • Dyes and Pigments
  • A
  • Stains and Dyes
  • Stains&Dyes, A to
Mol File:
4403-90-1.mol
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Acid Green 25 Chemical Properties

Melting point:
235-238 °C(lit.)
Colour Index 
61570
form 
neat
color 
Bluish green powder
Water Solubility 
36 g/L (20 ºC)
Merck 
14,252
InChIKey
FPAYXBWMYIMERV-UHFFFAOYSA-L
EPA Substance Registry System
C.I. Acid Green 25 (4403-90-1)
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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
Toxicity
LD50 orl-rat: >10 g/kg GTPZAB 28(7),53,84

MSDS

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Acid Green 25 Usage And Synthesis

Chemical Properties

dark green powder

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).

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.

Safety Profile

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

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 Preparation Products And Raw materials

Raw materials

Acid Green 25Supplier

Hangzhou Sunshine Chemicals Co., Ltd Gold
Tel
0086-571-88523165
Email
wangjf@aciddyes.com
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Email
sh@meryer.com
future industrial shanghai co., ltd
Tel
400-0066-400;021-60496031
Email
sales@jonln.com;sales@jonln.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386 / 800-988-0390
Email
Sales-CN@TCIchemicals.com