2 5 diaminotoluene sulfate is a chemical compound used in hair dyes textile dyes and other industrial applications. It's also known as toluene-2 5 diamine sulfate or 2 methyl para phenylene diamine.
A primary intermediate in various permanent hair dyes
Used in textile dyes
Used in photographic paper processing
Used in straight polyamide, polyimide, and urethane
Used to prepare dyes for furs, leathers, wood stains, and pigments
Technical Specifications
Properties:
A light tan to light purple powder
An organic sulfate salt and diamine
An allergen
Non-flammable
Poisonous by ingestion and intraperitoneal routes
Emits toxic fumes of NOx and SOx when heated to decomposition
Other Names
2,5 Diamino Toluene Sulphate
Precautions & Remarks
TECHNICAL SPECIFICATION::
Molecular Formula: C7H12N2O4S
Molecular Weight: 220.243 g/mol
Purity: Typically 99.0% min (by GC)
Appearance: Off-white powder
Solubility: Water soluble (10 g/L at 20°C)
Decomposition Temperature: > 250 °C
Flash Point: > 250 °C
Auto-ignition Temperature: > 600 °C
pH: 1.8 (20°C / 10 g/l)
Note
APPLICATION::
Hair Dyes:
2,5-TDAS is a key ingredient in oxidative hair coloring agents, forming the basis for producing a wide range of hair dye colors.
It is used to create permanent hair dyes that achieve black, drab, warm brown, and shades of blonde and gray.
Dye Production:
2,5-TDAS serves as an intermediate in the synthesis of various dyes, including those used for textiles, furs, leather, and pigments.
It can be used to produce dyes for biological stains, indicators, spirit varnishes, and wood stains.
Other Applications:
2,5-TDAS can be used in the production of polyurethanes.
It can also be used in the production of CI Basic Red 2 and CI Acid Brown 103 dyes.
PRECAUTION::
To ensure safety, wear protective gloves, clothing, eye and face protection, avoid breathing dust/fume/gas/mist/vapors/spray, and wash thoroughly after handling.