12262-21-4

Basic information

• Product Name: C.I. Direct Red 112
• Synonyms: C.I. Direct Red 112
• CAS NO: 12262-21-4
• Molecular Weight: 0
• Mol File: 12262-21-4.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: C.I. Direct Red 112(CAS DataBase Reference)
• NIST Chemistry Reference: C.I. Direct Red 112(12262-21-4)
• EPA Substance Registry System: C.I. Direct Red 112(12262-21-4)

Safety Data

• Hazardous Substances Data: 12262-21-4(Hazardous Substances Data)

Usage

Description

C.I. Direct Red 112 is a synthetic dye characterized by its dark red color, which appears as yellow light when dissolved in water. It exhibits various shades of color when interacting with different chemicals, such as blue-ray in black and gray light black when treated with strong sulfuric acid, and yellow olive brown to olive after brown when diluted. The dye solution with strong hydrochloric acid results in yellow olive brown precipitation, while the addition of thick sodium hydroxide solution produces a pale light orange color.

Uses

Used in Textile Industry:
C.I. Direct Red 112 is used as a coloring agent for dyeing fabrics, providing a vibrant and long-lasting red hue. Its resistance to acid and alkali, as well as its light fastness, make it suitable for various textile applications.
Used in Leather Industry:
C.I. Direct Red 112 is used as a dye for leather products, offering a durable and resistant color that withstands fading and staining. Its acid and alkali resistance, as well as its light fastness, contribute to the longevity and quality of the leather items.
Used in Paper Industry:
C.I. Direct Red 112 is used as a coloring agent for paper and paper products, providing a consistent and long-lasting red color. Its resistance to acid and alkali, as well as its light fastness, ensure the color remains vibrant and resistant to fading and staining.
Used in Cosmetics Industry:
C.I. Direct Red 112 is used as a colorant in the cosmetics industry, particularly in lipsticks and other makeup products. Its acid and alkali resistance, as well as its light fastness, make it a reliable choice for creating long-lasting and vibrant red shades in cosmetic products.
Used in Food Industry:
C.I. Direct Red 112 is used as a coloring agent in the food industry, providing a vibrant red color for various food products. Its acid and alkali resistance, as well as its light fastness, ensure the color remains stable and resistant to fading and staining.
Used in Analytical Chemistry:
C.I. Direct Red 112 is used as an indicator in analytical chemistry, particularly in titrations involving strong acids and bases. Its color changes in response to pH variations, making it a useful tool for determining the endpoint of a titration.

Preparation

in reflux conditions (or a little take pressure), in sodium hydroxide solution ?(E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid?with ?2-Aminobenzenesulfonic acid sodium diazotization and Naphthalen-1-amine coupled with heating products. Reaction to the different proportion of material that get different commodity dye.

Standard

Acid Resistance

Fading

Stain

ISO

4-5