Hexamethylenetetramine

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Hexamethylenetetramine

 

hexamine, or urotropine, colorless crystals with a sweet taste that carbonize at 280° C and sublime in vacuum above 230° C. Hexamethylenetetramine is highly soluble in water and carbon disulfide, moderately in alcohol and chloroform, and slightly in ether and benzene.

Hexamethylenetetramine is prepared by condensing ammonia with formaldehyde: 4NH3 + 6CH2O⇌(CH2)6N4 + 6H2O.

This reaction is reversible and under certain conditions the equilibrium may be shifted toward the left, which makes it possible to use hexamethylenetetramine as a convenient formaldehyde source (for example, in the production of ureaformaldehyde resins). Hexamethylenetetramine is also used in the production of the powerful explosive hexogen, in analytical chemistry (for example, in the preparation of buffer solutions), and as a smokeless solid fuel (so-called solid alcohol). Hexamethylenetetramine is a medicinal preparation of the antiseptic variety. Its antimicrobial action is due to formaldehyde formation from the decomposition of hexamethylenetetramine in acid media. Hexamethylenetetramine is used internally in powders, tablets, and solutions, as well as intravenously in infectious diseases, particularly for urinary tract infections. It was first synthesized by A. M. Butlerov in 1860.

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It was not disputed that the respondent's greyhound tested positive for hexamine.
10%+ PEG 9,0 0,5 0,5 Formulation Hexamine Additive (%) Water (%) Tannin 10% 0,6 -- 89,4 Tannin 20% 1,2 -- 78,8 Tan.
The workshop contained large quantities of chemicals sufficient for making several tons of explosives, including glycerin, antifreeze, potassium nitrates, hexamine, iron filings, fertilizer, potassium carbonates, and ammonia, in addition to several finished explosive devices rigged for remote detonation.
Paraphernalia including syringes, glass thermometers, droppers and chemical powders citric acid and hexamine were found buried in a suitcase owned by Sarwar.
The Club is asking the Appeal Court to overturn the ruling last December in which Mr Justice Evans-Lombe ``with some hesitation'' allowed Flaherty's challenge to the stewards' decision to fine him for the discovery of the substance Hexamine, which might be used to treat a urinary infection.
It followed a random drug test on his greyhound, Knockeevan King, before the second round of the English Derby at Wimbledon Stadium which proved positive for Hexamine.
0375% solution of PCV (Acros Organics), together with a 15% hexamine buffer with pH adjusted to 6.
In addition to formalin, the Gameroun Petro-Industry Complex produced a total of 5,000 tons of hexamine per year which is used in plastic and textile industries, pharmacology and defense industries.
It followed a routine and random drug test in the second round of the Derby at Wimbledon in May that year, which proved positive for Hexamine.
These meals either feature no heating system or use a hexamine tablet for heating, an expensive method requiring an open flame, which releases potentially dangerous gases such as cyanides and carbon monoxide, and leaves a sticky residue.