Acetaldehyde | Alcohol Metabolism, Carcinogen, Toxicity | Britannica
2024年10月9日 · Acetaldehyde (CH3CHO), an aldehyde used as a starting material in the synthesis of 1-butanol (n-butyl alcohol), ethyl acetate, perfumes, flavourings, aniline dyes, plastics, synthetic rubber, and other chemical compounds.
Aldehyde | Definition, Structure, Examples, & Facts | Britannica
2024年8月26日 · Aldehyde, any of a class of organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom or group of atoms (designated R in general …
Aldehyde - Organic, Reactivity, Carboxylic Acids | Britannica
2024年8月26日 · Aldehyde - Organic, Reactivity, Carboxylic Acids: The only structural difference between hydrocarbons and aldehydes is the presence in the latter of the carbonyl group, and it is this group that is responsible for the differences in properties, both physical and chemical.
Paraldehyde | Synthesis, Uses, Odor | Britannica
Paraldehyde, colourless liquid of disagreeable taste and pungent odour used in medicine as a sedative–hypnotic drug and in chemistry in the manufacture of organic chemicals.
Formaldehyde | Preservative, Solution, & Exposure | Britannica
2024年9月9日 · formaldehyde (HCHO), an organic compound, the simplest of the aldehydes, used in large amounts in a variety of chemical manufacturing processes. It is produced principally by the vapour-phase oxidation of methanol and is commonly sold as formalin, a 37 percent aqueous solution.
Benzaldehyde | Aroma, Flavoring, Preservative | Britannica
benzaldehyde (C6H5CHO), the simplest representative of the aromatic aldehydes, occurring naturally as the glycoside amygdalin. Prepared synthetically, it is used chiefly in the manufacture of dyes, cinnamic acid, and other organic compounds, and to some extent in perfumes and flavouring agents.
Acetic acid | Definition, Formula, Uses, & Facts | Britannica
Acetic acid has been prepared on an industrial scale by air oxidation of acetaldehyde, by oxidation of ethanol (ethyl alcohol), and by oxidation of butane and butene.
Ethanol | Definition, Formula, Uses, & Facts | Britannica
2024年9月3日 · Ethanol is converted in the body first to acetaldehyde and then to carbon dioxide and water, at the rate of about half a fluid ounce, or 15 ml, per hour; this quantity corresponds to a dietary intake of about 100 calories.
Phenol-formaldehyde resin | Synthesis, Uses & Properties | Britannica
Phenol-formaldehyde resin, any of a number of synthetic resins made by reacting phenol (an aromatic alcohol derived from benzene) with formaldehyde (a reactive gas derived from methane). Phenol-formaldehyde resins were the first completely synthetic polymers to be commercialized.
Acetylene | Description, Properties, & Uses | Britannica
It is a colourless flammable gas widely used as a fuel in oxyacetylene welding and the cutting of metals and as raw material in the synthesis of many organic chemicals and plastics; its chemical formula is C 2 H 2.