Home Categories Organic Chemistry 1,6-Hexamethylenediamine
A4694512

1,6-Hexamethylenediamine , CP,98.0% , 124-09-4

Synonym(s):
1,6-Diaminohexane;1,6-Hexanediamine;1,6-Hexanediamine, Hexamethylenediamine;HMDA

CAS NO.:124-09-4

Empirical Formula: C6H16N2

Molecular Weight: 116.2

MDL number: MFCD00008243

EINECS: 204-679-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: 42-45 °C(lit.)
Boiling point: 204-205 °C
Density  0.89 g/mL at 25 °C(lit.)
vapor density  4 (vs air)
vapor pressure  0.25 hPa (20 °C)
refractive index  n20/D 1.439(lit.)
Flash point: 201 °F
storage temp.  Store below +30°C.
solubility  alcohol: soluble(lit.)
pka 11.857(at 0℃)
form  Solution
color  White, may discolor during storage
PH 12.4 (100g/l, H2O, 25℃)
Odor pyridine odor
explosive limit 0.9-7.6%(V)
Water Solubility  490 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,4695
BRN  1098307
Exposure limits ACGIH: TWA 0.5 ppm
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, strong acids, organic materials.
LogP 0.4 at 25℃

Description and Uses

HMDA is a hygroscopic, colorless solid (pel-letsorflakes). Weak, fishy odor. odor thresh-old = 0.004 mg/m';Molecular weight = 116.13; Boilingpoint = 199℃; FreezingMelting point = 39- 42℃; Flashpoint= 71℃;81℃(solution);Autoi gnitiontemperature = 310℃. Explosive limits:LEL=0.7%;UEL= 6.3%. Soluble in water.

Hexamethylenediamine is mainly used as a monomer to make nylon 6-6. Its derivative hexamethylene diisocyanate (HDI) is used in the production of polyurethane. It acts as a cross-linking agent in epoxy resins. Other applications include fiber, plastics, polyurethane coatings, lubricants, water treatment products and specialty chemicals (biocides, petroleum additives, and phenol purification).

Safety

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H302+H312-H314-H335
Precautionary statements  P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338
Hazard Codes  C
Risk Statements  34-37-21/22-20/21/22
Safety Statements  26-36/37/39-45-22-27
RIDADR  UN 2735 8/PG 3
WGK Germany  3
RTECS  MO1180000
10-34
Autoignition Temperature 305 °C
TSCA  Yes
HS Code  2921 22 00
HazardClass  8
PackingGroup  III
Toxicity LD50 orally in Rabbit: 850 mg/kg LD50 dermal Rabbit 1110 mg/kg

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