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Merck

394467

Morpholine

purified by redistillation, ≥99.5%

Synonyme(s) :

Tetrahydro-1,4-oxazine

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A propos de cet article

Formule empirique (notation de Hill) :
C4H9NO
Numéro CAS:
Poids moléculaire :
87.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-815-1
Beilstein/REAXYS Number:
102549
MDL number:
Assay:
≥99.5%
Form:
liquid
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Nom du produit

Morpholine, purified by redistillation, ≥99.5%

InChI key

YNAVUWVOSKDBBP-UHFFFAOYSA-N

InChI

1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2

SMILES string

C1COCCN1

vapor density

3 (vs air)

vapor pressure

31 mmHg ( 38 °C)
7 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

590 °F

purified by

redistillation

expl. lim.

10.8 %

refractive index

n20/D 1.454 (lit.)

bp

129 °C (lit.)
129 °C

mp

−7-−5 °C (lit.)

solubility

water: miscible

density

0.996 g/mL at 25 °C (lit.)

functional group

ether

Quality Level

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Application

Morpholine is suitable for use as a test compound in the study of morpholine biodegradation by Mycobacterium strains.
It may be used in the following studies:
  • As a reactant in the synthesis of 1,3-dihydro-1-hydroxy-3-morpholin-4-yl-2,1-benzoxaborole by reacting with o-formylphenylboronic acid.
  • As a corrosion inhibitor and to maintain basic pH in boiler feed water.
  • As a reactant in the bis(β-ketoenolates)nickel(II) adducts of morpholine.
  • As one of the reagent used in the colorimetric quantitative determination of C-2 unsubstituted phenothiazine derivatives.
  • As a reactant in the quantitative determination of α,β-unsaturated compounds.

General description

Morpholine is a heterocyclic secondary amine. It is formed by the condensation of diethanolamine and sulfuric acid. Its IR spectra and Raman spectra at -180°C has been recorded. The crystal structure of morpholine has been determined at 150K. The microwave spectra of morpholine within the 8 to 40GHz region have been investigated. Ascorbate anion and glutathione have been reported to inhibit the aqueous reaction between nitrogen dioxide and morpholine. Conformational studies by Raman spectroscopy and theoretical calculations suggest that equatorial chair conformation of morpholine predominates in the pure liquid state. Degradation of morpholine using Mycobacterium sp. strain RP1 has been proposed.

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Repr. 2 - Skin Corr. 1B

Classe de stockage

3 - Flammable liquids

wgk

WGK 1

flash_point_f

87.8 °F - closed cup

flash_point_c

31 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Consulter la Bibliothèque de documents

Morpholine and its derivatives as vapour phase corrosion inhibitors for mild steel.
Subramanian A, et al.
Bulletin of Electrochemistry, 14(10), 289-290 (1998)
R V Cooney et al.
Cancer letters, 32(1), 83-90 (1986-07-01)
Ascorbate anion and glutathione were found to inhibit the aqueous reaction between nitrogen dioxide (NO2) and morpholine (MOR) and thereby prevented the formation of N-nitrosomorpholine (NMOR) and N-nitromorpholine (NTMOR) at both pH 7.4 and 12.5. These antioxidants are approximately 3
Conformational analysis of morpholine studied using Raman spectroscopy and density functional theoretical calculations.
SenGupta S, et al.
Chemical Physics Letters, 639, 1-6 (2015)
Determination of Alpha, Beta-Unsaturated Compouds by Reaction with Morpholine
Critchfield FE, et al.
Analytical Chemistry, 28(1), 76-79 (1956)
The vibrational spectra of piperidine and morpholine and their N-deuterated analogs.
Vedal D, et al.
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 32(4), 877-890 (1976)

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