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Acrylamide (or acrylic amide) is an organic compound with the chemical formula CH 2 =CHC(O)NH 2. It is a white odorless solid, soluble in water and several organic solvents. From the chemistry perspective, acrylamide is a vinyl-substituted primary amide (CONH 2 ).
Polyacrylamide is of low toxicity but its precursor acrylamide is a neurotoxin and carcinogen. [1] Thus, concerns naturally center on the possibility that polyacrylamide is contaminated with acrylamide. [12] [13] Considerable effort is made to scavenge traces of acrylamide from the polymer intended for use near food. [1]
It is the copolymer of acrylamide and the quaternary ammonium salt diallyldimethylammonium chloride. [ 1 ] Its molecular formula is: (C 8 H 16 ClN) n (C 3 H 5 NO) m .
Using acrylamide and paraformaldehyde in 1,2-dichloroethane gives a clear solution upon heating, from which MBA crystallizes. In aqueous media, acrylonitrile also reacts with formaldehyde to give crude N , N ′-methylenebisacrylamide, which can be purified by recrystallization with acetone/water.
This salt can be converted to acrylamide with treatment with base or to methyl acrylate by treatment with methanol. [ 5 ] The reaction of acrylonitrile with protic nucleophiles is a common route to a variety of specialty chemicals.
Additives are used for many purposes but the main uses are: Acids Food acids are added to make flavors "sharper", and also act as preservatives and antioxidants. Common food acids include vinegar, citric acid, tartaric acid, malic acid, folic acid, fumaric acid, and lactic acid.
Superabsorbent polymers are now commonly made from the polymerization of acrylic acid blended with sodium hydroxide in the presence of an initiator to form a poly-acrylic acid sodium salt (sometimes referred to as sodium polyacrylate). This polymer is the most common type of SAP made in the world today.
Poly(acrylamide 2-methacryloxyethyltrimethyl ammonium chloride) Polyquaternium-33 Copolymer of trimethylaminoethylacrylate salt and acrylamide Polyquaternium-34 Copolymer of 1,3-dibromopropane and N,N-diethyl-N′,N′-dimethyl-1,3-propanediamine Polyquaternium-35
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