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ACID RED 1

Basic information Safety Supplier Related

ACID RED 1 Basic information

Product Name:
ACID RED 1
Synonyms:
  • Acid Naphthol Red G
  • Acid Red 5B
  • Acid Rose 2G
  • Atlantic Acid Red 2G
  • Conacid Red A
  • Dermacid Pink B
  • Dyacid Rose 2G
  • Dycosacid Red G
CAS:
3734-67-6
MF:
C18H13N3Na2O8S2
MW:
509.42
EINECS:
223-098-9
Product Categories:
  • Dyes and Pigments
  • Organics
Mol File:
3734-67-6.mol
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ACID RED 1 Chemical Properties

Boiling point:
794.21℃[at 101 325 Pa]
Density 
1.37-1.774[at 20℃]
vapor pressure 
0-0Pa at 25℃
storage temp. 
Amber Vial, Refrigerator
solubility 
Methanol (Slightly), Water (Slightly)
Colour Index 
18050
color 
Very Dark Red
Water Solubility 
131.97g/L at 20℃
BRN 
4121767
Stability:
Light Sensitive
LogP
-2.392--2.07 at 20℃
EPA Substance Registry System
C. I. Food Red 10 (3734-67-6)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
3
RTECS 
QJ6030000
HS Code 
32129000

MSDS

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ACID RED 1 Usage And Synthesis

Chemical Properties

Dark red powder

Uses

A useful stain with color index of 18050.

Uses

Acid Red 1 is a synthetic red azo dye used as food additive. Studies have shown that Red Acid 1 is converted to toxic compound aniline and may ultimately interfere with blood haemoglobin.

Preparation

aniline diazo, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.

Definition

ChEBI: An organic sodium salt that is the disodium salt of 5-acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid.

Flammability and Explosibility

Non flammable

Properties and Applications

colourful red blue light. Red powder. Soluble in water solution for big red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. Meet strong sulfuric acid is blue light red, it will be diluted in a yellow after red; Meet nitric acid solution is orange turn orange; Meet strong hydrochloric acid generation red precipitation, dilute it dissolve. The aqueous solution of dyes and strong hydrochloric acid is product red; Add sodium hydroxide is orange brown. Copper ions in dyeing and dark blue colour and lustre to take; Iron ion in color with blue and light. Good levelness. Mainly used in strong acid medium in the wool dyeing and the piece dyed wool. Can be directly in the wool fabrics, polyamide fiber and fabric silk printing. Also can be used for leather dyeing, also can be used in the manufacture of color amylum, cosmetics, paper, soap and timber colorants, is used to make the ink. The Barium salt can be used in organic pigments.

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

Purification Methods

Salt it out three times with sodium acetate, then repeatedly extract it with EtOH. See Solochrome Violet R in “Aromatic compounds”, Chapter 4. [McGrew & Schneider J Am Chem Soc 72 2547 1950.]

ACID RED 1 Preparation Products And Raw materials

Raw materials

ACID RED 1Supplier

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