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2,6-Diaminotoluene

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2,6-Diaminotoluene Basic information

Product Name:
2,6-Diaminotoluene
Synonyms:
  • 1,3-Benzenediamine, 2-methyl-
  • 2,6-TOLUENEDIAMINE
  • 2,6-TOLUYLENEDIAMINE
  • 2,6-diamino-1-methylbenzene
  • 2,6-DIAMINOTOLUENE
  • 2-METHYL-BENZENE-1,3-DIAMINE
  • 2-METHYL-M-PHENYLENEDIAMINE
  • 1,3-Diamino-2-methylbenzene
CAS:
823-40-5
MF:
C7H10N2
MW:
122.17
EINECS:
212-513-9
Product Categories:
  • Amines
  • Aromatics
  • Intermediates of Dyes and Pigments
  • Aromatic Esters
  • Mutagenesis Research Chemicals
Mol File:
823-40-5.mol
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2,6-Diaminotoluene Chemical Properties

Melting point:
104-106 °C(lit.)
Boiling point:
289 °C
Density 
1.0343 (rough estimate)
refractive index 
1.5103 (estimate)
solubility 
soluble in Ether,Alcohol
pka
4.74±0.10(Predicted)
form 
Powder, Chunks or Pellets
color 
Dark gray to brown or black
Water Solubility 
60 g/L (15 ºC)
BRN 
2079476
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents, strong acids.
InChIKey
RLYCRLGLCUXUPO-UHFFFAOYSA-N
CAS DataBase Reference
823-40-5(CAS DataBase Reference)
NIST Chemistry Reference
1,3-Benzenediamine, 2-methyl-(823-40-5)
EPA Substance Registry System
2,6-Diaminotoluene (823-40-5)
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Safety Information

Hazard Codes 
Xn,N
Risk Statements 
21/22-43-51/53-68-50/53-40
Safety Statements 
24-36/37-61
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
RTECS 
XS9750000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29215190
Hazardous Substances Data
823-40-5(Hazardous Substances Data)

MSDS

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2,6-Diaminotoluene Usage And Synthesis

Chemical Properties

off-white crystals

Uses

Aromatic amines likely to have high carcinogenic potency. QSARs of aromatic amines.

Definition

ChEBI: A diamine that is toluene in which both of the hydrogens ortho- to the methyl group are replaced by amino groups.

Production Methods

2,6-Toluenediamine is usually produced as a by-product with 2,4-TDA in mixtures containing 20% 2,6-isomer and 80% 2,4-isomer. It is used primarily in the manufacture of toluene diisocyanate, the predominant isocyanate in the flexible polyurethane foams and elastomers industry.
Human exposure to 2,6-TDA may occur indirectly via exposure to toluene diisocyanate mixture containing 2,6- toluenediisocyanate, which is known to hydrolyze to 2,6- TDA rapidly upon contact with water. Workers in some plastics and elastomers industries may be exposed to atmosphere containing TDI.

General Description

Colorless prisms (from water).

Air & Water Reactions

Water soluble.

Reactivity Profile

2,6-Diaminotoluene neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.

Health Hazard

ACUTE/CHRONIC HAZARDS: 2,6-Diaminotoluene is toxic. It is a local irritant.

Fire Hazard

Flash point data for 2,6-Diaminotoluene are not available. 2,6-Diaminotoluene is probably combustible.

2,6-DiaminotolueneSupplier

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