Methenamine

Hexamethylene or methenamine is a heterocyclic organic compound with the formula (CH2)6N4. This white crystalline compound is highly soluble in water and polar organic solvents. It has a cage-like structure similar to adamantane. It is useful in the synthesis of other chemical compounds, e.g., plastics, pharmaceuticals, rubber additives. It sublimes in vacuum at 280 .

Application

The dominant use of hexamethylenete tramine is in the production of powdery or liquid preparations of phenolic resins and phenolic resin moulding compounds, where it is added as a hardening component. These products are used as binders, e.g. in brake and clutch linings, abrasive products, non-woven textiles, formed parts produced by moulding processes, and fireproof materials.
Medical uses
As the mandelic acid salt (methenamine mandelate) or the hippuric acid salt (methenamine hippurate), it is used for the treatment of urinary tract infection.
Histological stains
Methenamine silver stains are used for staining in histology,
Solid fuel
Together with 1,3,5-trioxane, used by campers, hobbyists, and relief organizations for heating camping food.
Reagent in organic chemistry
Hexamethylene is a versatile reagent in organic synthesis. It is used in the Duff reaction (formylation of arenes), the Sommelet reaction (converting benzyl halides to aldehydes), and in the Delepine reaction (synthesis of amines from alkyl halides).
Explosives
Hexamethylene is the base component to produce RDX

Parameter:
Moisture: 0.30%
Ash: 0.20%
Heavy metal(in pb): 0.001%
Chloride(in cl): 0.015%
Sulfate(in so4): 0.02%
Ammonium (in nh4):0.001%

Detailed product description:

Cas no.:100-97-0
Un no.:1328
Class:4.1
Other names:urotropin, methenamine, hexamethylenetetramine
Mf:c6h12n4
Einecs no.:202-905-8
Hs code:29336990.90
Place of origin:shandong, china (mainland)
Grade standard:industrial grade, medicine grade
Purity:¡ý99.3% (top grade)
Appearance: granule crystal (white particles)
Appearance of liquor:clarity
Supply ability: 700 metric tons per month

Stabilized hexamine is granule crystal, usually large particles, the performance is stable and not easy to block, and much more convenient for transportation and storage. Usually the stabilized hexamine is added with 0.2%~ 0.3% anti-blocking-agents so that it is not easy to block. However, we found a method for our products to avoid blocking without anti-blocking-agent. We are glad to provide free samples for you, and if you want to come to visit the factory, we are enthusiastic about your visiting.
We also have other two types of hexamine: unstabilized hexamine (fine powder) and ultrafine hexamine (mesh size: 120/150 mesh). Hexamine is widely used in curing agent or catalyst in plastic industry, sulfuring accelerator in rubber industry, shrink proof agent in weave industry, food antiseptics, emictoria and the production of hesokin explosive. The specific gravity of our products is d25/4 = 1.27.


In 25 kgs woven bags or kraft bags (one 20¡¯fcl=21~22mts without pallets & 18~20 mts with pallets)

The main use of methenamine is in the production of powdered or liquid preparations of phenolic resins and phenolic resin molding compounds, where it is added as a hardening component. These products are used as adhesives, for example, for brake and clutch linings, abrasive products, nonwovens, molded parts produced by molding processes, and as fireproof materials. [4]
Medical uses
The mandelate or hippurate salts[5] are used to treat urinary tract infections. In acidic environments, methylamine is thought to have an antibacterial effect by conversion to formaldehyde. [5][6]
Due to the astringent properties of formaldehyde, methenamine is used as an over-the-counter antiperspirant. [7]
Solid fuels
Methenamine and 1,3,5-trioxane are used as ingredients in methenamine fuel tablets, which are used by campers, hobbyists, the military, and relief organizations to heat camping food or military rations. It burns smokelessly, has a high energy density of 30.0 MJ/kg, and does not liquefy or leave ash when burned, but its smoke is toxic. Standardized 0.149 g tablets of methenamine are used by fire laboratories as a clean and reproducible fire source to test the ignitability of carpets and rugs. [8]
Food additives
Methenamine can be used as a food additive as a preservative (INS number 239). It is approved in the European Union,[9] with the E number E239, but is not approved in the United States, Russia, Australia, or New Zealand. [10]
Organic synthesis
Methenamine is a common reagent in organic synthesis. [11] It can be used in the Duff reaction (formylation of aromatics),[12] the Somme reaction (conversion of benzyl halides to aldehydes),[13] and the Dulepine reaction (synthesis of amines from alkyl halides).[14]
Explosives
Methenamine is a building block in the production of RDX, HMX, HMTD, and C4 explosives.[4]