Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Dyes and Pigments >  dye >  Acid dye >  Acid Orange 10

Acid Orange 10

Basic information Safety Supplier Related

Acid Orange 10 Basic information

Product Name:
Acid Orange 10
Synonyms:
  • 1,3-Naphthalenedisulfonicacid,7-hydroxy-8-(phenylazo)-,disodiumsalt
  • 1370orange
  • 1-phenylazo-2-naphthol-6,8-disulphonicacid,disodiumsalt
  • 3-naphthalenedisulfonicacid,7-hydroxy-8-(phenylazo)-disodiumsalt
  • 7-hydroxy-8-(phenylazo)-1,3-naphthalenedisulphonicacid,disodiumsalt
  • disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate
  • Orange G (CI 16230)
  • ORANGE G SODIUM
CAS:
1936-15-8
MF:
C16H10N2Na2O7S2
MW:
452.37
EINECS:
217-705-6
Product Categories:
  • Azo
  • marker
  • Dyes and Pigments
  • Organics
Mol File:
1936-15-8.mol
More
Less

Acid Orange 10 Chemical Properties

Melting point:
141 °C
Density 
0.80 g/mL at 20 °C
Flash point:
14 °C
storage temp. 
2-8°C
solubility 
H2O: soluble1mg/mL
pka
12.8(at 25℃)
Colour Index 
16230
form 
Powder
color 
Red to Orange
PH
9 (10g/l, H2O, 20℃)
PH Range
Yellow (11.5) to pink (14.0)
Water Solubility 
5 g/100 mL (20 ºC)
λmax
475 nm
BRN 
4120705
Stability:
Stable. Incompatible with strong oxidizing agents.
Biological Applications
Detecting lung cancer metastasis; measuring glycated proteins; ophthalmic devices
InChIKey
HSXUHWZMNJHFRV-QIKYXUGXSA-L
CAS DataBase Reference
1936-15-8(CAS DataBase Reference)
IARC
3 (Vol. 8, Sup 7) 1987
EPA Substance Registry System
C.I. Acid Orange 10, disodium salt (1936-15-8)
More
Less

Safety Information

Hazard Codes 
Xi,F
Risk Statements 
36/37/38-11
Safety Statements 
22-24/25-37/39-26-16-7-36/37
RIDADR 
UN 1987 3/PG 2
WGK Germany 
3
RTECS 
QJ6500000
TSCA 
Yes
HS Code 
32041200
Hazardous Substances Data
1936-15-8(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 3000 mg/kg

MSDS

More
Less

Acid Orange 10 Usage And Synthesis

Chemical Properties

orange crystals or powder

Definition

ChEBI: An organic sodium salt that is the disodium salt of 7-hydroxy-8-[(E)-phenyldiazenyl]naphthalene-1,3-disulfonic acid. It is often combined with other yellow dyes in alcoholic solution to stain erythrocytes in trichrome methods, and is used or demonstrating cells in the pancreas and pituitary.

General Description

Orange microcrystals or powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. This organic acid has a moderate soluble in water. The resulting solutions contain concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid.

Reactivity Profile

Acid Orange 10 is an azo compound. Toxic gases are formed by mixing compounds containing azo groups with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. Acid Orange 10 becomes redder and more dull when mixed with copper. Acid Orange 10 is almost destroyed when mixed with iron.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition Acid Orange 10 emits toxic fumes of carbon oxides, nitrogen oxides, sulfur oxides and disodium oxide.

Fire Hazard

Flash point data for Acid Orange 10 are not available; however, Acid Orange 10 is probably combustible.

Purification Methods

Recrystallise this dye from 75% EtOH, dry it for 3hours at 110o and keep it in a vacuum desiccator over H2SO4. The free acid crystallises from EtOH or conc HCl in deep red needles with a green reflex. [Conant & Pratt J Am Chem Soc 48 2483 1923, Drew & Landquist J Chem Soc 292 1938, Beilstein 16 H 301, 16 I 305, 16 II 141, 16 III 327.]

Acid Orange 10Supplier

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
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386 / 800-988-0390
Email
Sales-CN@TCIchemicals.com
Energy Chemical
Tel
021-58432009
Email
sales8178@energy-chemical.com