Acid Orange 7

ChemicalBook > CAS DataBase List > Acid Orange 7

Product Name: Acid Orange 7
CAS No.: 633-96-5
Chemical Name: Acid Orange 7
Synonyms: Ao 7;15510;ORANGE1;CI 4600;OrangeⅡ;ORANGE I;CI 14600;orangeya;orangeyz;ORANGE 4
CBNumber: CB0144029
Molecular Formula: C16H12N2O4S.Na
Formula Weight: 351.33
MOL File: 633-96-5.mol

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Acid Orange 7 Property

Melting point:: 164°C
Density: 1.525[at 20℃]
vapor pressure: 0Pa at 25℃
storage temp.: Amber Vial, -20°C Freezer, Under inert atmosphere
solubility: Very soluble in water; very slightly soluble in ethanol
form: Crystalline Powder
Colour Index: 15510
pka: 8.26, 11.4(at 25℃)
color: Green to blue
Odor: Odorless
PH Range: Amber (7.4) to orange (8.6);Orange (10.2) to red (11.8)
Water Solubility: 116 g/L (30 ºC)
λmax: 483nm
ε(extinction coefficient): ≥17000 at 480-486nm in water at 0.01g/L
≥26500 at 225-231nm in water at 0.01g/L
≥7500 at 307-313nm in water at 0.01g/L
Merck: 14,6858
BRN: 3898201
Stability:: Light Sensitive
Biological Applications: Cosmetics; wound dressing materials
Major Application: Organic light emitting diodes (OLEDs), nanoparticles, inks, wood preservatives, textiles, hair dyes, cosmetics, wound dressing materials, biofuel cells
LogP: -0.95 at 20℃
CAS DataBase Reference: 633-96-5(CAS DataBase Reference)
EPA Substance Registry System: C.I. Acid Orange 7, monosodium salt (633-96-5)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36-37/39
WGK Germany: 3
RTECS: DB7084000
HS Code: 32041200

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 195235
Product name: Orange II sodium salt
Purity: (Certified by the Biological Stain Commission), Dye content ≥85%
Packaging: 25g
Price: $49.8
Updated: 2024/03/01

Sigma-Aldrich

Product number: 195235
Product name: Orange II sodium salt
Purity: (Certified by the Biological Stain Commission), Dye content ≥85%
Packaging: 100g
Price: $163
Updated: 2024/03/01

TCI Chemical

Product number: G0158
Product name: Acid Orange 7
Purity: >97.0%(HPLC)
Packaging: 25g
Price: $35
Updated: 2024/03/01

TCI Chemical

Product number: G0158
Product name: Acid Orange 7
Purity: >97.0%(HPLC)
Packaging: 100g
Price: $85
Updated: 2024/03/01

Sigma-Aldrich

Product number: 69143
Product name: Orange II sodium salt
Purity: analytical standard
Packaging: 25mg
Price: $142
Updated: 2024/03/01

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Acid Orange 7 Chemical Properties,Usage,Production

Chemical Properties

Orange-red powder

Uses

Acid Orange 7 (CAS# 633-96-5) is an environmental pollutant.

Definition

ChEBI: Acid orange 7 is a member of naphthalenes. Orange allergenic extract is used in allergenic testing.

Preparation

Acid Orange 7, commonly known as acidic orange II. 4-Aminobenzenesulfonic acid diazo, and Naphthalen-2-ol coupling. It is produced by azo coupling of β-naphthol and diazonium derivative of sulfanilic acid.

Flammability and Explosibility

Non flammable

Properties and Applications

red light orange. Golden yellow powder. Soluble in water is red light yellow, orange soluble in alcohol. The strong sulfuric acid for quality in red, dilute create tan precipitation; In a golden of nitric acid; In the thick of sodium hydroxide solution not dissolve. Its water solution with hydrochloric acid generation tan precipitation; Add sodium hydroxide solution brown. In dyeing copper ions trend dark red in colour and lustre of iron ion shallow and dark. Discharge the gender is good. Mainly used for silk and wool dyeing, widely used in wool dyeing, can be used for wool, silk and polyamide fiber fabric of direct printing, leather and paper color, can also be used in indicator and biological shading. Is tasted can be used as a food dye, heavy metal salt used in organic pigments.

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

Purification Methods

Purification is as for Orange I. Its solubility in H2O is 40g/L at 25o. [Müller et al. Helv Chim Acta 35 2579 1952.] Also purify it by extracting it with a small volume of cold water, then crystallising it by dissolving in boiling water, cooling to ca 80o, adding two volumes of EtOH and cooling. When cold, the precipitate is filtered off, washed with a little EtOH and dried in air. It can be salted out from aqueous solution with sodium acetate, then repeatedly extracted with EtOH. Meggy and Sims [J Chem Soc 2940 1956], after crystallising the sodium salt twice from water, dissolved it in cold water (11mL/g) and added conc HCl to precipitate the acid dye which was separated by centrifugation, redissolved and again precipitated with acid. After washing the precipitate three times with 0.5M acid, it was dried over NaOH, recrystallised twice from absolute EtOH, washed with a little Et2O, dried over NaOH and stored over conc H2SO4 in the dark. It can then be converted to the pure salt with the calculated amount of NaOH or Na2CO3. [Beilstein 16 IV 408.]

Acid Orange 7 Preparation Products And Raw materials

Raw materials

Sulfonated castor oil SODIUM SULFANILATE Sulfanilic acid Sodium sulfate Sodium chloride 4-Amino-benzenesulfonic acid monosodium salt Water

Preparation Products

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View Lastest Price from Acid Orange 7 manufacturers

Hebei Mujin Biotechnology Co.,Ltd

Product: Acid Orange 7 633-96-5
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-06-20

Hebei Mujin Biotechnology Co.,Ltd

Product: Acid Orange 7 633-96-5
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-09-07

Hebei Weibang Biotechnology Co., Ltd

Product: Acid Orange 7 633-96-5
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-10-28

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