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Merck
CN

52709

Hexamethylenetetramine

≥99.5% (T)

Synonym(s):

1,3,5,7-Tetraazatricyclo[3.3.1.13,7]decane, Hexamine, Methenamine, Urotropine

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About This Item

Empirical Formula (Hill Notation):
C6H12N4
CAS Number:
Molecular Weight:
140.19
EC Number:
202-905-8
UNSPSC Code:
12352200
MDL number:
Beilstein/REAXYS Number:
2018
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vapor pressure

<0.01 mmHg ( 20 °C)

assay

≥99.5% (T)

autoignition temp.

770 °F

ign. residue

≤0.05%

pH

8.5-9.5 (25 °C, 1 M in H2O)

mp

280 °C (subl.) (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤100 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

C1N2CN3CN1CN(C2)C3

InChI

1S/C6H12N4/c1-7-2-9-4-8(1)5-10(3-7)6-9/h1-6H2

InChI key

VKYKSIONXSXAKP-UHFFFAOYSA-N

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pictograms

FlameExclamation mark

signalword

Warning

hcodes

Hazard Classifications

Flam. Sol. 2 - Skin Sens. 1B

Storage Class

4.1B - Flammable solid hazardous materials

wgk

WGK 1

flash_point_f

482.0 °F - closed cup

flash_point_c

250 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

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Hong Yu et al.
Nanoscale, 6(18), 10556-10561 (2014-08-15)
Ternary metal oxides have been receiving wide attention in electrochemical energy storage due to their rich redox reactions and tuneable conductivity. We present a simple solution-based method to prepare a 3D interconnected porous network of ternary metal oxide (CoMoO₄ and
Vincent Consonni et al.
ACS nano, 8(5), 4761-4770 (2014-04-12)
Controlling the polarity of ZnO nanowires in addition to the uniformity of their structural morphology in terms of position, vertical alignment, length, diameter, and period is still a technological and fundamental challenge for real-world device integration. In order to tackle
Lorena Vidal et al.
Journal of chromatography. A, 1285, 7-14 (2013-03-12)
Quaternary ammonium-functionalized silica materials were synthesized and applied for solid-phase extraction (SPE) of aromatic amines, which are classified as priority pollutants by US Environmental Protection Agency. Hexamethylenetetramine used for silica surface modification for the first time was employed as SPE
Andreas Lemmerer et al.
Chemical communications (Cambridge, England), 48(13), 1883-1885 (2011-12-03)
The tetrahedral arrangement of hydrogen bonding donor and acceptor groups is used to rationalise the design of a diamondoid network; however, a single proton transfer renders the four sites inequivalent, and results in two polymorphs of the title molecular salt
P Restani et al.
Food additives and contaminants, 9(5), 597-605 (1992-09-01)
Formaldehyde (FA) and hexamethylenetetramine (HMT) are used in cheese production to control gas-forming clostridia; FA also occurs naturally in some foods at levels of 1-20 mg/kg. The toxicology of FA and HMT are briefly discussed together with their reaction in

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