Benzaldehyde is a Colourless to pale yellow liquid with bitter almond like odour. It is the simplest aromatic aldehyde and one of the most used chemicals in industries. It has a variety of applications in diverse fields that range from the manufacturing of dyestuffs, herbicides, fragrances, sweeteners, agriculture, antibiotics, etc.
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 �°C.
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
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
Benzaldehyde is an organic compound formed when the hydrogen of benzene is replaced by an aldehyde group. Benzaldehyde is the simplest and most commonly used aromatic aldehyde in industry. At room temperature it is a colorless liquid with a distinctive almond odor. Benzaldehyde is the main component of almond oil extract, and can also be extracted from apricot, cherry, bay leaves, peach stones. The compound is also found in nuts and nuts in combination with glycosides (Amygdalin).
use
[Use 1] An important chemical raw material, used to make laural, lauric acid, phenylacetaldehyde and benzyl benzoate, etc., and also used as spices.
[Use 2] Used for the determination of ozone, phenols, alkaloids and methylene reagents located next to carboxyl groups.
[Use 3] Can be used as a special head fragrance, trace used in floral formula, such as lilac, alba, jasmine, violet, acacia, sunflower, sweet bean flower, plum blossom, orange blossom and so on. It can also be used in soap. It can also be used as an edible spice in almond, berry, cream, cherry, coconut, apricot, peach, large walnut, large plum, vanilla bean, spice and other flavors. Wine flavor such as rum, brandy and other types are also used.
[Use 4] Benzaldehyde is an intermediate of herbicide wild Yanquat and plant growth regulator antimyramine.
[Use 5] GB 2760--1996 for the temporary permitted use of edible spices. Mainly used to prepare almond, cherry, peach, kernel and other types of flavor, the amount of up to 40%. As a flavor enhancer for canned cherries in sugar water, add 3ml per kg of sugar water.
[Use 6] Intermediates for medicine, dyes and spices. Used in the production of m-oxybenzaldehyde, lauric acid, lauraldehyde, green, benzyl benzoate, benzylaniline, benzyleneacetone and so on. Used to blend soap essence, food essence, etc.
[Use 7] Organic synthesis, solvent, determination of ozone and methylene next to carbonyl, determination of phenols and alkaloids, preparation of spices
Uses Benzaldehyde is an important raw material for the pharmaceutical, dye, fragrance and resin industries. It has a wide range of uses: it can be used as a solvent, plasticizer and low-temperature lubricant, etc., and plays an important role in the pharmaceutical, dye, fragrance and resin industries. 1. Application in the fragrance industry: It is mainly used to prepare edible flavors, and a small amount is used in daily chemical flavors and tobacco flavors. It can be used as a special top fragrance and is used in trace amounts in the formula of floral fragrances such as lilac, white orchid and jasmine. 2. Application in the food industry: It is stipulated as a temporarily allowed edible flavor in GB2760--1996. Chemicalbook is mainly used to prepare almond, cherry, peach and other flavors, and can also be used as a flavoring agent for canned cherries in syrup. 3. Agricultural application: It is an intermediate of the herbicide wild swallow quat and the plant growth regulator anti-invertamine, and is used in the agricultural field. 4. Chemical raw materials: It is an important chemical raw material used to prepare lauryl aldehyde, lauric acid, phenylacetaldehyde, benzyl benzoate, etc. 5. Laboratory use: It is used to determine reagents such as ozone, phenol, alkaloids and methylene groups next to carboxyl groups. In short, benzaldehyde has important applications in many fields and is a multifunctional compound.
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]
