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Triethylenetetramine

CAS No.
112-24-3
Chemical Name:
Triethylenetetramine
Synonyms
TETA;Trientine;TRIEN;triethylentetramine;TRIETHYLENETETRAMINE (TETA);3,6-Diazaoctanethylenediamin;N1-[2-(2-Amino-ethylamino)-ethyl]-ethane-1,2-diamine;TECZA;hy951;deh24
CBNumber:
CB8183772
Molecular Formula:
C6H18N4
Molecular Weight:
146.23
MDL Number:
MFCD00008169
MOL File:
112-24-3.mol
Last updated:2023-12-01 17:57:45

Triethylenetetramine Properties

Melting point 12 °C(lit.)
Boiling point 266-267 °C(lit.)
Density 0.982 g/mL at 25 °C(lit.)
vapor density ~5 (vs air)
vapor pressure <0.01 mm Hg ( 20 °C)
refractive index n20/D 1.496(lit.)
Flash point 290 °F
storage temp. Store below +30°C.
solubility alcohol: soluble
pka pK1:3.32(+4);pK2:6.67(+3);pK3:9.20(+2);pK4:9.92(+1) (20°C)
form Slightly viscous yellow liquid; commercially available form is 95–98% pure, and impurities include linear, branched, and cyclic isomers.
color Yellowish liquid or oil
PH 10-11 (10g/l, H2O, 20℃)
explosive limit 0.7-7.2%(V)
Water Solubility SOLUBLE
FreezingPoint 12℃
Sensitive Moisture Sensitive
Merck 14,9663
BRN 605448
Exposure limits ACGIH: TWA 1 ppm (Skin)
NIOSH: TWA 1 ppm(4 mg/m3)
Stability Incompatible with strong oxidizing agents, strong acids.
LogP -2.65 at 20℃
Indirect Additives used in Food Contact Substances TRIETHYLENETETRAMINE
FDA 21 CFR 175.105; 175.300; 176.170; 176.180; 177.2600
CAS DataBase Reference 112-24-3(CAS DataBase Reference)
EWG's Food Scores 5
FDA UNII SJ76Y07H5F
ATC code A16AX12
NIST Chemistry Reference Triethylenetetramine(112-24-3)
EPA Substance Registry System Triethylenetetramine (112-24-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07
Signal word  Danger
Hazard statements  H312-H314-H317-H412
Precautionary statements  P261-P272-P273-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  C
Risk Statements  21-34-43-52/53
Safety Statements  26-36/37/39-45-61
RIDADR  UN 2259 8/PG 2
WGK Germany  2
RTECS  YE6650000
Autoignition Temperature 335 °C
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29212900
Toxicity LD50 orally in rats: 2.5 g/kg (Spitz)
NFPA 704
1
3 0

Triethylenetetramine price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.14392 Triethylenetetramine (mixture of isomers) for synthesis 112-24-3 100mL $35.5 2024-03-01 Buy
Sigma-Aldrich 8.14392 Triethylenetetramine (mixture of isomers) for synthesis 112-24-3 500mL $61.9 2024-03-01 Buy
Sigma-Aldrich 132098 Triethylenetetramine technical grade, 60% 112-24-3 1kg $78.4 2024-03-01 Buy
Sigma-Aldrich 132098 Triethylenetetramine technical grade, 60% 112-24-3 2kg $135 2024-03-01 Buy
TCI Chemical T0429 Triethylenetetramine >60.0%(GC) 112-24-3 25mL $22 2024-03-01 Buy
Product number Packaging Price Buy
8.14392 100mL $35.5 Buy
8.14392 500mL $61.9 Buy
132098 1kg $78.4 Buy
132098 2kg $135 Buy
T0429 25mL $22 Buy

Triethylenetetramine Chemical Properties,Uses,Production

Description

Cross sensitivity is possible with diethylenetriamine and diethylenediamine.

Chemical Properties

Triethylenetetramine is a corrosive liquid.

Uses

Triethylenetetramine is used in synthesis of detergents, softeners, and dyestuffs; manufacture of pharmaceuticals; vulcanization accelerator of rubber; thermo setting resin; epoxy curing agent; lubricating-oil additive; analytical reagent for Cu, Ni; chelating agent; treatment of Wilson's disease.

Uses

Triethylenetetramine is a selective CuII-chelator; crosslinking agent. Triethylenetetramine is undergoing trials for the treatment of heart failure in patients with diabetes.

Uses

Triethylenetetramine is used as an amine hardener in epoxy resin of the bisphenol A type.

Definition

ChEBI: 2,2,2-tetramine is a polyazaalkane that is decane in which the carbon atoms at positions 1, 4, 7 and 10 are replaced by nitrogens. It has a role as a copper chelator. It is a tetramine and a polyazaalkane.

Production Methods

TETA is manufactured by reacting ethylene dichloride and ammonia under controlled conditions.

brand name

Syprine (Merck).

Chemical Properties

Triethylenetetramine (TETA) is hygroscopic, corrosive, and has a strong ammoniacal odor. With water a crystalline hydrate is formed. Like DETA, it is completely miscible with water and many polar organic solvents, but less so with lipids; with CCl4 a violent reaction occurs. Its four pKa values are 3.32, 6.67, 9.20, and 9.92. Technical-grade TETA is sometimes available as a distillation cut that also contains branched isomers and cyclic compounds.

General Description

A yellowish liquid. Less dense than water. Combustible, though may be difficult to ignite. Corrosive to metals and tissue. Vapors heavier than air. Toxic oxides of nitrogen produced during combustion. Used in detergents and in the synthesis of dyes, pharmaceuticals and other chemicals.

Reactivity Profile

Triethylenetetramine is a strong base; reacts violently with strong oxidants; attacks aluminum, zinc, copper and its alloys. Handling Chemicals Safely 198. p. 934).

Health Hazard

Vapors from hot liquid can irritate eyes and upper respiratory system. Liquid burns eyes and skin. May cause sensitization of skin.

Fire Hazard

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Flammability and Explosibility

Non flammable

Contact allergens

Triethylenetetramine is used as an amine hardener in epoxy resins of the bisphenol A type. Cross-sensitivity is possible with diethylenetriamine and diethylenediamine.

Safety Profile

Poison by intravenous route. Moderately toxic by ingestion and skin contact. An experimental teratogen. Experimental reproductive effects. Mutation data reported. A corrosive irritant to skin, eyes, and mucous membranes. Causes skin sensitization. Combustible when exposed to heat or flame. Ignites on contact with cellulose nitrate of high surface area. Can react with oxidizing materials. To fight fire, use CO2, dry chemical, alcohol foam. When heated to decomposition it emits toxic fumes of NOx.

Toxicology

Triethylenetetramine may induce lung edema on inhalation of its vapors. The compound is also an effective skin sensitizer. Following repeated dosing (ca. 50 mg each, 17 – 55 times) onto the skin of pregnant and nonpregnant guinea pigs, significant amounts were absorbed by the strongly irritated skin, leading to toxic effects in the kidneys, liver, brain, and placenta and causing abortion. Triethylenetetramine proved to be a mutagen in vitro but not in vivo.

Carcinogenicity

TETA was mutagenic in bacterial assays and was positive in sister chromatid exchanges and unscheduled DNA synthesis tests in vitro.8 It was not clastogenic in the mouse micronucleus test in vivo after oral or intraperitoneal administration.

Purification Methods

Dry the amine with sodium, then distil it under a vacuum. Further purification has been via the nitrate or the chloride salts. For example, Jonassen and Strickland [J Am Chem Soc 80 312 1958] separated TRIEN from admixture with TREN (38%) by solution in EtOH, cooling to approximately 5o in an ice-bath and adding conc HCl dropwise from a burette, keeping the temperature below 10o, until all of the white crystalline precipitate of TREN.HCl (see p 191) had formed and was removed. Further addition of HCl then precipitated thick, creamy white TRIEN.HCl (see below) which was crystallised several times from hot water by adding an excess of cold EtOH. The crystals were finally washed with Me2CO, then Et2O and dried in a vacuum desiccator. [Beilstein 4 H 255, 4 II 695, 4 III 542, 4 IV 1242.]

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View Lastest Price from Triethylenetetramine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Triethylenetetramine pictures 2024-04-23 Triethylenetetramine
112-24-3
US $1.60 / kg 10kg 99% 300tons Hebei Dangtong Import and export Co LTD
Trientine pictures 2024-04-22 Trientine
112-24-3
US $120.00-65.00 / Kg/Bag 10Kg/Bag 0.99 10 tons Sinoway Industrial co., ltd.
Triethylenetetramine pictures 2023-09-06 Triethylenetetramine
112-24-3
US $0.00 / KG 1KG 99% 500000kg Hebei Guanlang Biotechnology Co., Ltd.
  • Trientine pictures
  • Trientine
    112-24-3
  • US $120.00-65.00 / Kg/Bag
  • 0.99
  • Sinoway Industrial co., ltd.
N,N'-DI(2-AMINOETHYL)ETHYLENEDIAMINE N,N'-BIS(2-AMINOETHYL)ETHYLENEDIAMINE Ethylenediamine, N,N'-bis(2-aminoethyl)- hy951 n,n’-bis(2-aminoethyl)-2-ethanediamine N,N’-bis-(2-amino-ethyl)-ethane-1,2-diamine n,n’-bis(2-aminoethyl)-ethylenediamin N,N'-Bis(2-aminoethyl)-1,2-diaminoethane n,n-bis(2-aminoethyl)-1,2-diaminoethane TECZA Texacure EA-24 Texlin 300 Trientene Triethylenetetramine ,99.9% TriethylenetetraMine, 60% 500GR TriethylenetetraMine, 60% 50GR TRIETHYLENETETRAMINE (MIXTURE OF ISOMERS N1,N1'-(ethane-1,2-diyl)bis(ethane-1,2-diaMine) TETA)TriethylenetetraM 1,2-EthanediaMine,N1,N2-bis(2-aMinoethyl)- TriethylenetetraMine >=97.0% (T) TriethylenetetraMine technical grade, 60% TriethylenetetraMine, AR,70% EPH 925 Triethylenetetramine (Trientine) n,n'-bis(2-aminoethyl)-1,2-ethanediamine 3,6-DIAZAOCTANE-1,8-DIAMINE 1,8-diamino-3,6-diazaoctane 1,4,7,10-TETRAAZADECANE TRIETHYLENETETRAMINE 1,2-Ethanediamine, N,N'-bis(2-aminoethyl)- 1,2-Ethanediamine,N,N’-bis(2-aminoethyl)- 2-Ethanediamine,N,N’-bis(2-aminoethyl)-1 Araldite Hardener HY 951 Araldite HY 951 aralditehardenerhy951 aralditehy951 DEH 24 deh24 Ethanediamine, N,N'-bis(2-aminoethyl)- TRIETHYLENETETRAMINE, TECH., 60% TRIAETHYLENTETRAMINE Triethylenetetramine,Certified TriethyleneTetramineForSynthesis TRIETHYLENETETRAMINE,REAGENT TRIETHYLTETRAMINE Triethylentetramin TRIETHYLENETETRAMINE: TECH., 60%, BALANCE BRANCHED AND CYCLIC TRIETHYLENETETRAMINES LABOTEST-BB LTBB000434 Triethylenetetramine,95% Triethylenetetramine,60% 3,6-diazaoctanethylenediamin triethylenetetramine N,N-bis(Aminoethyl)ethylenediamine Triethylenetetramine(Technical) Triethylenetetramine > N,N-Di(2-Aminoethyl)Ethylenediamine,>70% Triethylenetetramine USP/EP/BP Triethylenetetramine (mix. of isomers) pure, 97%