HEXAMETHYLENE DIAMINE (1,6-HEXANEDIAMINE)

Diamines are compounds which contain two amino groups. Both aliphatic (linear or branched from short C-2 chain to fatty length ) and aromatic diamines are used as a monomer to form copolymers like nylons, polyesters and polyurethanes for characteristic properties. They can form a protein-like structure at both ends of each monomer. The chain length characteristics with recurring amide groups provide a variety physical properties and are further processed into various applications including plastics, oil-modified and moisture-area types of urethane coatings, polyamides for printing inks, dimer acids, textiles, lubricant additive as scale and corrosion inhibitor, epoxy curing agent, isocyanates, water treatment chemicals, biocides, and pharmaceutical intermediates. Approximately 99% of the HMDA is used as a monomer for the manufacture of polyamides. Nylon 6,6 is a copolymer formed by the condensation reaction between hexamethylenediamine and adipic acid, each of which contains six carbon atoms, with the release of two water molecules.

HEXAMETHYLENE DIAMINE
PRODUCT IDENTIFICATION
CAS NO.	124-09-4 2088-79-1 (Monohydrochloride) 6055-52-3 (Dihydrochloride)
EINECS NO.	204-679-6
FORMULA	H₂N(CH₂)₆NH₂
MOL WT.	116.21
H.S. CODE	2921.22.0010
TOXICITY	Rat LD50 oral: 750mg/kg
SYNONYMS	1,6-Hexanediamine; 1,6-Diaminohexane; HMDA; 1,6-hexylenediamine;
1,6-hexamethylenediamine; 1,6-diamino-n-hexane; alpha,omega-Hexanediamine;
SMILES	C(CCCN)CCN
CLASSIFICATION	Polyamine, alpha,omega-Diamine
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	Liquid (70-80%); Solid (85-100%)
MELTING POINT	41 C (100%) , 6 C (70%)
BOILING POINT	205 C (100%), 111 C (70%)
SPECIFIC GRAVITY	0.929 (100%), 0.854 (70%)
SOLUBILITY IN WATER	2.46E+06 at 5 C
AUTOIGNITION
pKa	11.02 (Dissociation Constant at 20 C)
log Pow	0.35 (Octanol-water)
VAPOR PRESSURE	(mmHg at 25 C)
HENRY'S LAW	3.21E-09 (atm-m3/mole at 25 C)
OH RATE	6.90E-11 (cm3/molecule-sec at 25 C Atmospheric )
pH
VAPOR PRESSURE	1.1
REFRACTIVE INDEX
NFPA RATINGS	Health : 3 Flammability : 2 Reactivity : 1
FLASH POINT	81 C (100%), 116 (70%)
STABILITY	Stable
GENERAL DESCRIPTION & EXTERNAL LINKS
Diamines are compounds which contain two amino groups. Both aliphatic (linear or branched from short C-2 chain to fatty length ) and aromatic diamines are used as a monomer to form copolymers like nylons, polyesters and polyurethanes for characteristic properties. They can form a protein-like structure at both ends of each monomer. The chain length characteristics with recurring amide groups provide a variety physical properties and are further processed into various applications including plastics, oil-modified and moisture-area types of urethane coatings, polyamides for printing inks, dimer acids, textiles, lubricant additive as scale and corrosion inhibitor, epoxy curing agent, isocyanates, water treatment chemicals, biocides, and pharmaceutical intermediates. Approximately 99% of the HMDA is used as a monomer for the manufacture of polyamides. Nylon 6,6 is a copolymer formed by the condensation reaction between hexamethylenediamine and adipic acid, each of which contains six carbon atoms, with the release of two water molecules. Wikipedia Linking: http://en.wikipedia.org/wiki/Hexamethylenediamine
SALES SPECIFICATION
APPEARANCE	Liquid (70-80%); Solid (85-100%)
CONTENT	70 - 99.5%
WATER	0.1 - 30.0%
TRANSPORTATION
PACKING	170 - 180kgs in Drum
HAZARD CLASS	8
UN NO.	2280(Solid) & 1783 (Solution)
OTHER INFORMATION