definition acetate
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- Acetate is a compound derived from acetic acid. It can exist in three different forms: an anion, salt, or ester. Acetic acid loses a proton to form the acetate ion. When this anion interacts with a cation, an acetate salt is formed.
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- From solution of diacetate of lead, 16 drops; distilled water, 1⁄2 pint; mix. Cooley's Practical Receipts, Volume II Arnold Cooley. The derivative is approximately a diacetate, and on the assumption of a simple ester reaction the yield should be 127 p.ct. Researches on Cellulose C. F. Cross.
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Acetate When part of a salt, the formula of the acetate ion is written as CH3CO2−, C2H3O2−, or CH3COO−. Chemists abbreviate acetate as OAc− or, less commonly, AcO−. Thus, HOAc is the abbreviation for acetic acid, NaOAc for sodium acetate, and EtOAc for ethyl acetate.
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- home / medterms medical dictionary a-z list / lactate dehydrogenase definition Medical Definition of Lactate dehydrogenase Lactate dehydrogenase: (LDH) An enzyme that catalyzes the conversion of lactate to pyruvate. This is an important step in energy production in cells. Many different types of cells in the body contain this enzyme.
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Sodium acetate Sodium acetate, CH 3 COONa, also abbreviated Na O Ac, also known as sodium ethanoate, is the sodium salt of acetic acid.This colorless deliquescent salt has a wide range of uses.s the conjugate base of acetic acid, a solution of sodium acetate and acetic acid can act as a buffer to keep a relatively constant pH level.
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calcium calcium acetate the calcium salt of acetic acid; administered orally as a source of calcium and as a phosphate binder, such as in patients with end-stage renal disease. Also used as a pharmaceutical buffering agent.alcium also occurs as a component of the natural compound gypsum, which forms plaster of paris when heated. It is also a component of calcium cyanamid, a fertilizer and progenitor of other nitrogen compounds. Calcium is the fifth most abundant element in the human body and is mainly present in the bone.
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angiotensin-converting enzyme angiotensin-converting enzyme (ACE) an enzyme of the hydrolase class that catalyzes cleavage of a dipeptide from the C-terminal end of angiotensin I to form activated angiotensin II; called also peptidyl-dipeptidase A.
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Sodium acetate Sodium acetate, CH 3 COONa, also abbreviated Na O Ac, also known as sodium ethanoate, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses.
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What is the difference between acetate and plastic frame glasses? Acetate is one of the different types of plastic. But it is different from the regular plastic. Compared with regular plastic, acetate plastic glasses are more durable than regular plastic frame glasses. Besides, acetate plastic glasses are lightweight and flexible, which will make people comfortbable to wear.ctually, acetate frame glasses are one kind of plastic frame glasses. However, it is lighter than the latter one, and is not easy to break. Even it is broken, the fragment is not that shape so that the damage to the eyes and the face could reduce maximize.
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acetylcholine The acetic ester of choline, the neurotransmitter substance at cholinergic synapses. It is hydrolyzed rapidly into choline and acetic acid by acetylcholinesterase in the tissues and by pseudocholinesterase in the blood. acetylcholine.
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acetylcholine acetylcholine - a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems. neurotransmitter - a neurochemical that transmits nerve impulses across a synapse. Translations.
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Cellulose acetate Cellulose acetate fiber is one of the earliest synthetic fibers and is based on cotton or tree pulp cellulose (biopolymers). These cellulosic fibers have been replaced in many applications by cheaper petro-based fibers (nylon and polyester) in recent decades.cetate fiber is known as modified or secondary acetate having two or more hydroxyl groups. Triacetate fibers, although no longer produced in the United States, contain a higher ratio of acetate-to-cellulose than do acetate fibers.
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polyvinyl acetate : a polymer of vinyl acetate; especially : a thermoplastic material [−CH2CH(OOCCH3)−]x obtained usually in the form of a colorless to straw-colored stable solid resin or a milk-white emulsion in water and used chiefly in adhesives, textile finishes, water-base emulsion paints, and other coatings and in making polyvinyl alcohol and polyvinyl acetals ...
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Acetate Fibers Acetate fibers are molded from solutions of cellulose acetate in organic solvents (triacetate cellulose in a mixture of methylene chloride and alcohol, secondary cellulose acetate in acetone), usually by the so-called dry method.By this method filaments, the so-called acetate silk, are obtained.ater acetate fiber production decreased after the appearance of new types of valuable synthetic fibers. In 1967 the world output of acetate fibers was 397,000 tons, 6.4 percent of the total production of chemical fibers. Rogovin, Z. A. Osnovy khimii i tekhnologii proizvodstva khimicheskikh volokon, vol. 1, 3rd ed.
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- Acetate and triacetate. The term acetate fibres is used to describe fibres made from cellulose acetate. The difference between acetate and triacetate fibres lies in the number of the cellulose hydroxyl groups that are acetylated.cetate and triacetate. The term acetate fibres is used to describe fibres made from cellulose acetate. The difference between acetate and triacetate fibres lies in the number of the cellulose hydroxyl groups that are acetylated.
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What is Acetyl-CoA? Acetyl-CoA, or activated acetate, is an important molecule in the metabolism processes of the human body. Composed of two carbon atoms, this coenzyme is the metabolic product of the oxidation of several amino acids, pyruvate and fatty acids.It is then broken down and used by the body for energy production.he acetyl-CoA that is used in the Krebs cycle comes from two main sources. The first source of the molecule is pyruvate, an organic acid that can be converted into carbohydrates, fatty acids or energy.
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What is Acetone? - Structure, Uses & Formula Acetone is a colorless, flammable liquid that evaporates easily. It is an organic compound because carbon atoms are present in acetone's chemical formula, which is (CH3)2O. It consists of three carbon atoms, six hydrogen atoms, and one oxygen atom.
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Ethyl acetate Ethyl acetate is synthesized in industry mainly via the classic Fischer esterification reaction of ethanol and acetic acid. This mixture converts to the ester in about 65% yield at room temperature:thyl acetate is synthesized in industry mainly via the classic Fischer esterification reaction of ethanol and acetic acid. This mixture converts to the ester in about 65% yield at room temperature:
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Cellulose acetate From solution, triacetate can be dry-spun into fibres or, with the aid of plasticizers, cast as a film. If the primary acetate is treated with water, a hydrolization reaction can occur in which the acetylation reaction is partially reversed, producing a secondary cellulose acetate, or cellulose diacetate.
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Geologic hazards A geologic hazard is one of several types of adverse geologic conditions capable of causing damage or loss of property and life. These hazards consist of sudden phenomena and slow phenomena: Sudden phenomena include: avalanches (snow, rock, or air & snow) and its runout.
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salt Definition of acetate - a salt or ester of acetic acid, containing the anion CH₃COO⁻ or the group —OOCCH₃., cellulose acetate, especially as used to make Definition of acetate - a salt or ester of acetic acid, containing the anion CH₃COO⁻ or the group —OOCCH₃., cellulose acetate, especially as used to make dictionary thesaurus
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Acetate Fabric Acetate satin fabric is thin and silky, and resists shrinking and stretching. Furthermore, acetate cloth resists mold and mildew, because it withstands moisture absorption and dries easily. Generally, acetate fabrics will need to be dry cleaned for their care.
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Acetic acid Acetic acid is a chemical reagent for the production of chemical compounds. The largest single use of acetic acid is in the production of vinyl acetate monomer, closely followed by acetic anhydride and ester production. The volume of acetic acid used in vinegar is comparatively small.
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Acetate Federal Trade Commission Definition for Acetate Fiber: A manufactured fiber in which the fiber forming substance is cellulose acetate. Where not less than 92% of the hydroxyl groups are acetylated, the term triacetate may be used as a generic description of the fiber.n cross-dyeing, yarns of one fiber (e.g., acetate) and those of another fiber (cotton or rayon) are woven into a fabric in a desired pattern. After the fabric has been dyed in one bath, this pattern will appear in different colors or shades according to the distribution of the respective fibers.
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acetone acetone. a compound, CH 3 ·CO·CH 3, with a characteristic odor; it is used as a solvent and as an antiseptic. Acetone is one of the ketone bodies produced in abnormal amounts in uncontrolled diabetes mellitus and metabolic acidosis. See also ketosis.
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Sodium acetate Buffer solution. As the conjugate base of acetic acid, a solution of sodium acetate and acetic acid can act as a buffer to keep a relatively constant pH level. This is useful especially in biochemical applications where reactions are pH-dependent in a mildly acidic range (pH 4-6). Heating pad