C.I. Solvent Black 7 | CAS No. 8005-02-5

Q: What are the physical and chemical properties of C.I. Solvent Black 7 (CAS: 8005-02-5)?

C.I. Solvent Black 7 (CAS: 8005-02-5) is a deep black dye with a crystalline form. It has a high molecular weight and excellent light and heat stability. It is slightly soluble in water but highly soluble in organic solvents. The dye is chemically stable and shows minimal reactivity under normal conditions. It is often used in textile and ink manufacturing for its deep black color and high chroma.

Q: How is C.I. Solvent Black 7 (CAS: 8005-02-5) typically synthesized?

C.I. Solvent Black 7 (CAS: 8005-02-5) is synthesized through a multi-step process involving the coupling of aniline with 2-naphthol. This reaction typically occurs in the presence of acids as catalysts, leading to a high yield of the target compound. The process is selective and efficient, making it a common method for producing this dye.

Q: What industries use C.I. Solvent Black 7 (CAS: 8005-02-5)?

C.I. Solvent Black 7 (CAS: 8005-02-5) is widely used in the textile and printing industries for dyeing fabrics and inks. It is also employed in the paper and leather industries for coloring various substrates. Additionally, it finds applications in colorants for plastics and other polymer-based products due to its excellent color stability and durability.

Q: What precautions should be taken when handling C.I. Solvent Black 7 (CAS: 8005-02-5)?

When handling C.I. Solvent Black 7 (CAS: 8005-02-5), it is crucial to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. It should be stored in a cool, dry place away from direct sunlight and heat sources. In case of a spill, it should be cleaned up with care, using suitable absorbents, and disposing of according to local regulations. Always refer to the safety data sheet (SDS) for detailed handling instructions.

C.I. Solvent Black 7

Basic Information

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CAS Number

8005-02-5

Molecular Formula

C14H22N2O4S

Molecular Weight

314.4 g/mol

EINECS

616-851-1

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Basic Physical Properties

Melting Point

180ºC

Water Solubility

<0.1G/100MLAT21ºC

Solubility

alcohol: soluble

SMILES

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CCCCCC(NC1C=CC(S(NCCO)(=O)=O)=CC=1)=O

InChI

InChI=1S/C14H22N2O4S/c1-2-3-4-5-14(18)16-12-6-8-13(9-7-12)21(19,20)15-10-11-17/h6-9,15,17H,2-5,10-11H2,1H3,(H,16,18)

InChIKey

ZOTFNDQLJIXYRU-UHFFFAOYSA-N

LogP

1.476

Topological Polar Surface Area

95.5 Å²

Hydrogen Bond Donor/Acceptor

3 / 6

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

RTECS

GE5800000

Synonyms & References

English

Solvent Black 7
NIGROSIN B ALCOHOL SOLUBLE
C.I. 50415:1
C.I. 50415b
Nigrosin Base
C.I.Solventblack7
NIGROSIN, ALCOHOL SOLUBLE
NIGROSIN
NIGROSINE BASE
NIGROSINE, ALCOHOL SOLUBLE
INDULIN BLACK
CI NO 50415

MDL Number

MFCD00149005

EC Number

616-851-1

FAQ

What are the physical and chemical properties of C.I. Solvent Black 7 (CAS: 8005-02-5)?

C.I. Solvent Black 7 (CAS: 8005-02-5) is a deep black dye with a crystalline form. It has a high molecular weight and excellent light and heat stability. It is slightly soluble in water but highly soluble in organic solvents. The dye is chemically stable and shows minimal reactivity under normal conditions. It is often used in textile and ink manufacturing for its deep black color and high chroma.

How is C.I. Solvent Black 7 (CAS: 8005-02-5) typically synthesized?

C.I. Solvent Black 7 (CAS: 8005-02-5) is synthesized through a multi-step process involving the coupling of aniline with 2-naphthol. This reaction typically occurs in the presence of acids as catalysts, leading to a high yield of the target compound. The process is selective and efficient, making it a common method for producing this dye.

What industries use C.I. Solvent Black 7 (CAS: 8005-02-5)?

C.I. Solvent Black 7 (CAS: 8005-02-5) is widely used in the textile and printing industries for dyeing fabrics and inks. It is also employed in the paper and leather industries for coloring various substrates. Additionally, it finds applications in colorants for plastics and other polymer-based products due to its excellent color stability and durability.

What precautions should be taken when handling C.I. Solvent Black 7 (CAS: 8005-02-5)?

When handling C.I. Solvent Black 7 (CAS: 8005-02-5), it is crucial to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. It should be stored in a cool, dry place away from direct sunlight and heat sources. In case of a spill, it should be cleaned up with care, using suitable absorbents, and disposing of according to local regulations. Always refer to the safety data sheet (SDS) for detailed handling instructions.