| Identification | More | [Name]
Acid Orange 10 | [CAS]
1936-15-8 | [Synonyms]
1-PHENYLAZO-2-NAPHTHOL-6,8-DISULFONIC ACID DISODIUM SALT
1-PHENYLAZO-2-NAPTHOL-6,8-DISULFONIC ACID DISODIUM SALT
7-HYDROXY-8-PHENYLAZO-1,3-NAPHTHALENEDISULFONIC ACID
7-HYDROXY-8-(PHENYLAZO)-1,3-NAPHTHALENEDISULFONIC ACID, DISODIUM SALT
7-HYDROXY-8-PHENYLAZO-1,3-NAPHTHALENEDISULFONIC ACID SODIUM SALT
ACID ORANGE 10
ACID ORANGE G
CALCOCID FAST LIGHT ORANGE 2G
CI 16230
CI NO 16230
CRYSTAL ORANGE GG
INTRACID FAST ORANGE G
OG-6
ORANGE G
ORANGE G CERTIFIED
ORANGE G SODIUM SALT
WOOD ORANGE 2G
WOOL ORANGE 2G
XYLENE FAST ORANGE G
1,3-Naphthalenedisulfonicacid,7-hydroxy-8-(phenylazo)-,disodiumsalt | [EINECS(EC#)]
217-705-6 | [Molecular Formula]
C16H10N2Na2O7S2 | [MDL Number]
MFCD00012457 | [Molecular Weight]
452.37 | [MOL File]
1936-15-8.mol |
| Chemical Properties | Back Directory | [Appearance]
orange crystals or powder | [Melting point ]
141 °C | [density ]
0.80 g/mL at 20 °C | [Fp ]
14 °C | [storage temp. ]
2-8°C
| [solubility ]
H2O: soluble1mg/mL | [Colour Index ]
16230 | [form ]
Powder | [pka]
12.8(at 25℃) | [color ]
Red to Orange | [PH]
9 (10g/l, H2O, 20℃) | [PH Range]
Yellow (11.5) to pink (14.0) | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [Water Solubility ]
5 g/100 mL (20 ºC) | [λmax]
475 nm | [BRN ]
4120705 | [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]
1936-15-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,F | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R11:Highly Flammable. | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S16:Keep away from sources of ignition-No smoking . | [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 |
| Hazard Information | Back Directory | [General Description]
Orange microcrystals or powder. | [Reactivity Profile]
C.I. ACID ORANGE 10(1936-15-8) 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. This compound becomes redder and more dull when mixed with copper. C.I. ACID ORANGE 10(1936-15-8) is almost destroyed when mixed with iron. | [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. | [Health Hazard]
ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits toxic fumes of carbon oxides, nitrogen oxides, sulfur oxides and disodium oxide. | [Fire Hazard]
Flash point data for this chemical are not available; however, C.I. ACID ORANGE 10 is probably combustible. | [Chemical Properties]
orange crystals or powder | [Uses]
Collagen stain for connective tissue. Used with Orcein, Alizarin Blue 2B, and Fast Green FCF in Kornhauser′s quadruple stain for most elementary structures of tissues. | [Uses]
Orange G is an azo dye used primarily as a histological stain. Dyes and metabolites. | [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. | [Preparation]
aniline diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling. | [Biochem/physiol Actions]
Orange G is used in collagen stain for connective tissue. It is used with Orcein, Alizarin Blue 2B, and Fast Green FCF in Kornhauser′s quadruple stain for most elementary structures of tissues. It is also used along with acid fuchsin and light green in masson trichrome stain for the staining of cellular structures, red blood cells and muscle cells. | [Properties and Applications]
bright orange. Soluble in water for orange, slightly soluble in ethanol (golden orange) and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for yellow orange, diluted for yellow; In nitric acid solution for wine red, to orange. Its water solution and strong hydrochloric acid for yellow orange; Add nitric acid for wine red, to orange; Add thick sodium hydroxide solution for orange brown. Used for silk and wool products dyeing, also can dye paper and manufacturing ink, used in wood and color pencil manufacturing and biological dyeing.
|
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
4-5
|
1
|
5
|
2
|
1
|
5
|
2
|
1
|
|
AATCC
|
4
|
1
|
1
|
2
|
1
|
1
|
1
|
1
|
| [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.] |
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