Title: Diisopropanolamine
CAS Registry Number: 110-97-4
CAS Name: 1,1¢-Iminobis-2-propanol
Additional Names: bis(2-hydroxypropyl)amine; DIPA
Molecular Formula: C6H15NO2
Molecular Weight: 133.19
Percent Composition: C 54.11%, H 11.35%, N 10.52%, O 24.02%
Literature References: Secondary alkanolamine. Prepn: J. N. Wickert, US 1988225 (1935 to Carbide & Carbon Chem.). Densities, viscosities, diffusivities: H. Hikita et al., J. Chem. Eng. Jpn. 14, 411 (1981). Absorption and mass transfer study: P. M. M. Blauwhoff, W. P. M. Van Swaaij, ACS Symp. Ser. 196, 377 (1982). Safety assessment and use: K. H. Beyer et al., J. Am. Coll. Toxicol. 6, 53 (1987). Review of use in 'Sulfinol' process: K. E. Zarker, Fert. Sci. Technol. Ser. 2, 219-232 (1974); in gas purification: K. F. Butwell et al., Hydrocarbon Process. Int. Ed. 61, 109-116 (1982).
Properties: White, waxy solid, mp 32-42°. bp 249°. Freezing pt 107°F. Flash point (open cup) 255°F (127°C). Critical density 0.31 g/cc. d2045 0.9890. n60 1.4450-1.4550. pH of 5% aq soln: 11.5. Completely miscible with water and alcohol, slightly sol in toluene. Insol in hydrocarbons.
Melting point: mp 32-42°
Boiling point: bp 249°
Flash point: Flash point (open cup) 255°F (127°C)
Index of refraction: n60 1.4450-1.4550
Density: d2045 0.9890
Use: Emulsifying and neutralizing agent in cosmetics. Removal of H2S and CO2 from natural and industrial gases. Antimicrobial agent in cutting fluids.
Diisopropyl Paraoxon Diisopropylamine Diisopropylamine Dichloroacetate Dikegulac Dilazep

CAS number 78-96-6 YesY
PubChem 4
ChemSpider 3 YesY
EC number 220-532-9
KEGG C05771 YesY
Jmol-3D images Image 1
Molecular formula C3H9NO
Molar mass 75.11 g mol−1
Appearance liquid
Odor ammonia-like
Density 0.973 g/mL (18 °C) [1]
Melting point 1.74 °C; 35.13 °F; 274.89 K
Boiling point 159.46 °C; 319.03 °F; 432.61 K
Solubility in water soluble
Solubility soluble in alcohol, ether, acetone, benzene, CCl4
Refractive index (nD) 1.4479
NFPA 704
NFPA 704.svg
Flash point 77 °C; 171 °F; 350 K
Autoignition temperature 374 °C; 705 °F; 647 K
LD50 4.26 g/kg (rat, oral)
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

1-Amino-2-propanol (isopropanolamine) is a chemical compound with the formula C3H9NO. It is an amino alcohol. The term "isopropanolamine" may also refer more generally to the additional homologs diisopropanolamine (DIPA) and triisopropanolamine (TIPA).

It can be prepared by the addition of aqueous ammonia to propylene oxide.