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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A 98% pure form of acetic acid used in production of acetate fiber.  3, record 1, English, - glacial%20acetic%20acid

Record number: 1, Textual support number: 1 CONT

Glacial acetic acid is [a] pure compound [99.8% min.], as distinguished from the usual water solutions known as acetic acid, [which] crystallizes at 62°F.  4, record 1, English, - glacial%20acetic%20acid

Record number: 1, Textual support number: 2 CONT

Acetic acid is the most extensively used organic acid, and is obtained either by the oxidation of alcohol and aldehyde, or by the destructive distillation of wood and carbohydrates in general. This yields an impure pyroligneous vinegar, which is subsequently purified.... Stahl proposed in 1700 a method to obtain acetic acid from vinegar by exposing the latter substance to a freezing temperature, separating the ice from the stronger acid; another method he suggested was to neutralize with an alkali and to evaporate, then distilling with an equal amount of sulphuric acid. In 1759 Count de Lauraguais obtained a crystallized acetic acid in a distillate of cuprum acetate, then known as "copper spirit. "The name glacial acetic acid was affixed to this substance by Löwitz(1793), who repeatedly distilled diluted acetic acid with powdered charcoal, and obtained thereby a crystalline acid by subjecting the product to a low temperature.  5, record 1, English, - glacial%20acetic%20acid

Record number: 1, Textual support number: 1 OBS

In the context of spotting, glacial acetic must be diluted to a 5-7% concentration. Glacial acetic is extremely hazardous (toxic fumes, severe skin burns) and should not be used without special training, personal protective equipment (PPE), and under carefully controlled conditions.  3, record 1, English, - glacial%20acetic%20acid

Record number: 1, Textual support number: 2 OBS

glacial: glass-like, crystallized. This usage persists in terms such as glacial acetic acid and glacial phosphoric acid.  6, record 1, English, - glacial%20acetic%20acid

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Acide acétique pur cristallisable vers 16 °C.  4, record 1, French, - acide%20ac%C3%A9tique%20glacial

Record number: 1, Textual support number: 1 CONT

Le vinaigre est une solution d'acide acétique à 4-5 %; on peut acheter de l'acide acétique glacial à 99,5 % et le diluer à 2 %.  5, record 1, French, - acide%20ac%C3%A9tique%20glacial

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 OBS

glacial: Dícese del ácido acético exento de agua y de los demás cuerpos cuyos cristales se asemejan a los del hielo o son susceptibles de cristabilizar como él, si son líquidos.  2, record 1, Spanish, - %C3%A1cido%20ac%C3%A9tico%20glacial

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A flammable, irritating, and poisonous liquid with the low boiling point of 20°C [that is made] by the oxidation of ethylene or by the dehydrogenation of ethyl alcohol [and that] is second only to formaldehyde in industrial importance.  6, record 2, English, - acetaldehyde

Record number: 2, Textual support number: 1 OBS

aldehyde: A chemistry term applied to the compounds of alcohol intermediate between the alcohols and the acids.  7, record 2, English, - acetaldehyde

Record number: 2, Textual support number: 2 OBS

Chemical formula: CH₃CHO or C₂H₄O or CH[subscript 3-CH=O  8, record 2, English, - acetaldehyde

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Composé de formule CH₃-CH=O, dérivant de l'alcool éthylique par oxydation ménagée ou de l'acétylène par hydratation, [qui constitue] un intermédiaire essentiel de l'industrie chimique.  4, record 2, French, - ac%C3%A9tald%C3%A9hyde

Record number: 2, Textual support number: 1 OBS

L'acétaldéhyde est considéré comme un gaz à effet de serre mineur.  5, record 2, French, - ac%C3%A9tald%C3%A9hyde

Record number: 2, Textual support number: 2 OBS

acétaldéhyde : Nom vulgaire de l'éthanal.  6, record 2, French, - ac%C3%A9tald%C3%A9hyde

Record number: 2, Textual support number: 3 OBS

Formule chimique : CH₃CHO ou C₂H₄O ou CH₃-CH=O  6, record 2, French, - ac%C3%A9tald%C3%A9hyde

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 OBS

Líquido incoloro de olor picante y frutal. Miscible con agua, alcohol, éter, benceno, gasolina, tolueno, xileno, trementina y acetona. Muy inflamable y tóxico. Riesgo de incendio y explosión.  2, record 2, Spanish, - acetaldeh%C3%ADdo

Record number: 2, Textual support number: 2 OBS

Etanal: segundo término de la serie homóloga de los aldehídos alifáticos [...]  2, record 2, Spanish, - acetaldeh%C3%ADdo

Record number: 2, Textual support number: 3 OBS

Fórmula química: CH₃CHO o C₂H₄O o CH₃-CH=O  3, record 2, Spanish, - acetaldeh%C3%ADdo

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Acetaldehyde dehydrogenases ... are dehydrogenase enzymes which convert acetaldehyde into acetic acid. The oxidation of acetaldehyde to acetate can be summarized as follows: CH₃CHO + NAD⁺ + CoA = acetyl-CoA + NADH + H⁺.  2, record 3, English, - acetaldehyde%20dehydrogenase

Record number: 3, Textual support number: 2 CONT

Aldehyde dehydrogenases have a broad substrate specificity. Oxidation of aldehydes is considered to be generally a detoxification reaction, removing the electrophilic products of alcohol oxidation. For example, alcohol dehydrogenase oxidizes ethanol to acetaldehyde, responsible for some "hangover" symptoms, and acetaldehyde dehydrogenase detoxifies this to acetic acid.  3, record 3, English, - acetaldehyde%20dehydrogenase

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

L'acétaldéhyde déshydrogénase [...] est une enzyme du groupe des déshydrogénases qui convertit l'acétaldéhyde en acide acétique. L'oxydation de l'acétaldéhyde en acétate peut se résumer ainsi : CH₃3CHO + NAD⁺ CoA = + acétyl-CoA + NADH + H⁺.  5, record 3, French, - ac%C3%A9tald%C3%A9hyde%20d%C3%A9shydrog%C3%A9nase

Record number: 3, Textual support number: 2 CONT

L'alcool est métabolisé en acétaldéhyde par l'alcool-déshydrogénase, puis en acétate par l'acétaldéhyde-déshydrogénase.  6, record 3, French, - ac%C3%A9tald%C3%A9hyde%20d%C3%A9shydrog%C3%A9nase

Record 3,  Textual support,  Spanish