90279

Triethanolamine

≥99.0% (GC)

• Synonym(s): 2,2′,2′′-Nitrilotriethanol, Tris(2-hydroxyethyl)amine
• Linear Formula: (HOCH₂CH₂)₃N
• CAS Number: 102-71-6
• Molecular Weight: 149.19
• Beilstein: 1699263
• EC Number: 203-049-8
• MDL number: MFCD00002855
• UNSPSC Code: 12161700
• PubChem Substance ID: 57653380
• NACRES: NA.25
• Assay: ≥99.0% (GC)
• bp: 190-193 °C/5 mmHg (lit.)
• vapor pressure: 0.01 mmHg ( 20 °C)

Properties

• vapor density: 5.14 (vs air)
• Quality Level: 200
• vapor pressure: 0.01 mmHg ( 20 °C)
• Assay: ≥99.0% (GC)
• form: liquid; viscous liquid
• autoignition temp.: 600 °F
• expl. lim.: 8.5 %
• impurities: ≤0.1% ethanolamine (GC); ≤0.2% water; ≤0.3% diethanolamine (GC)
• refractive index: n20/D 1.485 (lit.)
• pH: 10.5-11.5 (25 °C, 149 g/L)
• useful pH range: 7.3-8.3
• pKa (25 °C): 7.8
• bp: 190-193 °C/5 mmHg (lit.)
• mp: 17.9-21 °C (lit.)
• solubility: H₂O: 1 M, clear, colorless
• density: 1.124 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤5 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• cation traces: Ca: ≤5 mg/kg; Cd: ≤1 mg/kg; Co: ≤1 mg/kg; Cr: ≤1 mg/kg; Cu: ≤1 mg/kg; Fe: ≤1 mg/kg; K: ≤20 mg/kg; Mg: ≤1 mg/kg; Mn: ≤1 mg/kg; Ni: ≤1 mg/kg; Pb: ≤1 mg/kg; Zn: ≤1 mg/kg
• SMILES string: OCCN(CCO)CCO
• InChI: 1S/C6H15NO3/c8-4-1-7(2-5-9)3-6-10/h8-10H,1-6H2
• InChI key: GSEJCLTVZPLZKY-UHFFFAOYSA-N

Description

General description

Triethanolamine (TEA) belongs to the family of ethanolamine. It includes the properties of both amines and alcohols.[1] Addition of TEA to an acidic buffer facilitates the determination of fluoride in inorganic orthophosphates by using a fluoride-selective electrode.[2]

Application

Triethanolamine (TEA) has been used:

• as a component of the acetylation working solution[3]
• in the preparation of polyethylene glycol (PEG) hydrogels[4]
• as a constituent of CO2/O2 specificity (SC/O) assay buffer[5]

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 354.2 °F - closed cup
• Flash Point(C): 179 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves