Dictionary,Defintion, Meaning, What is Accumulator, Acetophenone, Acenaphthenequinone, Acetaldehyde, Acetamide, Accetanilide, Acetic acid, Acetone, Acetyl chloride, Monoacetin,

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Home >> Chemistry Dictionary >>Accumulator - Acetophenone

Your Ad Here	Ac. Actinium. Also used for acetate (ethanoate) Acac. Abbreviation for acetylacetonate group. Accelerator. A substance that increases the rate of a chemical reaction. Accumulator.20 (secondary cell; storage battery) A type of voltaic cell or battery that can be recharged by passing a current through it from an external d.c. supply. The charging current, which is passed in the opposite direction to that in which the cell supplied current, reverses the chemical reactions in the cell. The common types are the lead-acid accumulator and the nickeliron accumulator. Acenaphthenequinone. It is condensed with thioindoxyl and its derivatives to bright scarlet and red vat dyes.
Acetaldehyde. See ethanol. Acetals. An organic compound obtained when alcohol is added to the Carboxyl group of aldehyde in the presence of anhydrous acids. Acetamide. See ethanamide Accetanilide. (C₆A₅NHCOCH₃) A Colourless crystalline substance (m.p.387)sparingly soluble in cold water but more soluble in hot water C₆H₆+CH₃COOH?C₆H₅NHCOCH+H₂O it is obtained by the action or glacial acetic acid on aniline. Acetates. Salts or esters of ethanoic acid.
Acetic acid. See ethanoic acid Acetone. See acylation Acetyl chloride. See ethanoyl chloride Acetins. Acetates (ethanoates) of glycerol. There are five possible acetates, two mono-, two-di, and one tri-acetate. The commercial acetins are mixtures of the various acetates and form colourless or slightly brown syrupy liquids. Prepared from glycerol, ethanoic acid and sulphuric acid.	Your Ad Here
Monoacetin. Contains chiefly the 1-acetate CH₂OH.CHOH-CH₂OOCCH₃. This is used as a solvent for the dyes employed in printing paper bags. Diacetin. Is chiefly the 1:3-diacetate CH₂OOCH₃.CHOH-CH₂OOCCH₃. Used as plasticizer for cellulose acetate lacquers and as a solvent for basic dyes. Triacetin. Is about 90% glycerol triacetate and 10% diacetate. It is used as a plasticizer and as a solvent for certain resins and gums.
Your Ad Here	Acetoacetic acid. acetonemonocarboxylic acid, butan-3-onoic acid, C₄H₆O₃, CH₃CO.CH₃COOH. A colourless and strongly acid syrup. It is unstable, and, decomposes into propanone and carbon-di-oxide below 100°C. Prepared from acetoacetic ester. It occurs in traces in normal urine, b ut is characteristically present in increases amount in the urine of diabetics patients. Acetolysis. The process of removing acetyl groups from an organic compound. It is usually carried out by heating the acetyl compound with aqueous or alcoholic alkalis, whereby the acetyl groups are removed as ethanoic acid. Acetone. It is a colourless liquid having characteristic odour and is flammable. It is miscible with water and organic solvents.

Acetone dicarboxylic, acid, b-ketoglutaric acid.
C₅H₆O₅, CO.(CH₂COOH)₂. Colourless needies, m.p. 135°C (decomp.). Prepared by the action of sulphuric acid on citric acids. Readily decomposed by boiling water, acids, or alkali to acetone (propanone) and carbon-di-oxide. The acid or its diethyl ester reacts with sodium in a manner similar to acetoacetic ester. The ester is used in organic syntheses.

Acetonitrile, methyl cyanide, ethanenitrile.
CH₃CN. Poisonous liquid, b.p. 82°C. It is prepared from ethyne and ammonia or by the dehydration of ethanamide. It is particularly used for dissolving inorganic and organic compounds, especially when a non-aqueous polar solvent of high dielectric constant is required, (for ionic reactions)

Acetonyl. The group CH₃COOH₂.

Acetophenone.
C₈H₈O, PhCOCH₃. Colourless plates, m.p. 20°C. Odour resembling bitter almonds. Prepared by the action of ethanoyl chloride upon the benzene in the presence of aluminium chloride. It has typical ketonic properties. Oxidized by potassium permanganate to phenylglyoxylic acids.

Acetoxy.
The group CH₃COO.

Acetytacetonates.
Metal derivatives of acetylacetone generally containing the grouping shown with some deocalization in the ring.

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