- Classification: chemical auxiliary agent
- Appearance: white granule powder
- CAS No.:9003-05-2065
- Type: nonionic
- Formula: (C3h5no)N
- Solid Content: ≥89%
- Application：beneficiation industries
- Transport Package: 25kg/bag, 1000kg/bag, customized package
- Delivery: 3-5day
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safety assessment of acrylamide/acrylate copolymers as used,a 28-d dermal toxicity assay was performed in wistar han rats (5/sex/group).16 the test substance (38% amp-acrylates/c1-18 alkyl acrylate/c1-8 alkyl acrylamide/hydroxyethylacrylate copolymer in water; 2 ml/kg) was applied to the skin at doses of 0, 100, 300, and 1000 mg/kg bw/d, under semi-occlusive conditions, for 6 h/d.
a review on acrylamide in food: occurrence, toxicity, flocculant
for thousands of years, people have used heat to cook their food. thermal processing has a great importance in terms of microbiological safety, nutritional quality, and the desired sensory properties, such as color, texture, and flavor; however, undesirable chemicals have arisen as problems associated with food processing techniques. 1,2 heating of food induces chemical reactions that lead to
promoting medical products globally baker mckenzie,the lto, and in a manner that satisfactorily assures the safety, efficacy and quality of its drug products. regulation of prescription dru gs . in addition to the requirements under the fda act and fda irr with respect to the advertisement and promotion of health products, various regulations specifically govern these activities with respect
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acrylamide at a dose of 20 mg/kg/day stimulated the degeneration of peripheral nerves and the spinal cord of rats, although no obvious effects were found at doses less than 0.2 mg/kg/day. 152
synthesis and application of anionic polyacrylamide in water,desorption, on the other hand, releases contaminants from the adsorbent, rendering it reusable for subsequent adsorption cycles [6]. anionic polyacrylamide polymer (paam) is a commonly used
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groups give polyacrylamide a highly hydrophilic character in this state. when polymer- ization takes place at ph 2.5 or below, the resulting polyacrylamide is not water soluble. in its cross-linked form, polyacrylamide is defined as “water-swollen” rather than water soluble.‘4p6’
acute and long-term effects of anionic polyacrylamide (apam.the application of synthetic polymers such as anionic polyacrylamide (apam) in enhanced oil recovery (eor) may increase in the future. this can lead to environmental release through offshore produced water discharges with so far limited knowledge on impacts in marine ecosystems. we investigated impacts of apam polymers on two marine copepod
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chemistry, biochemistry, and safety of acrylamide. a review
acrylamide (ch2chconh2), an industrially produced α,β-unsaturated (conjugated) reactive molecule, is used worldwide to synthesize polyacrylamide. polyacrylamide has found numerous applications as a soil conditioner, in wastewater treatment, in the cosmetic, paper, and textile industries, and in the laboratory as a solid support for the separation of proteins by electrophoresis. because of
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high quality flocculant polyacrylamide (pam) is commonly used as a flocculant in water and wastewater treatment, a soil conditioner, and a viscosity improver and friction enhancer.
cationic polyacrylamide emulsion with ultra-high,cationic polyacrylamide emulsion with ultra-high concentration as a flocculant for paper mill wastewater treatment. kaiji yang, a jinghuan chen, b and chunli yao a, * cationic polyacrylamide emulsions prepared with ultra-high concentration (cpame-uhc) have the advantages of fast dissolution, convenient operation, and low transportation cost.
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the polymer adsorption increases with the following order: anionic pam nonionic pam cationic pam . nonionic polyacrylamide adsorption on clay minerals is mainly caused by van der waals forces [ 80 ], whereas cationic or anionic forms adsorb and bind soil particles through electrostatic forces or bridge formation between pam charged moieties
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- What factors affect the flocculation effect of cationic polyacrylamide (CPAM)?
- Cationic polyacrylamide (CPAM) is a commonly used flocculant for water treatment. Factors that affect the flocculation effect and can be controlled manually include the type and dosage of CPAM, wastewater pH, stirring time and settling time, and their reasonable setting is critical to the flocculation effect of CPAM.
- Which cationic polymers are used as flocculants for silica aggregates?
- An example is work by Zhou and Framks [ 31 ], where three cationic polymers (homopolymer of diallyldimehylammonium chloride and its two copolymers with acrylamide) of different molecular weights (1.1–3.0 × 10 5 g/mol) and charge density (CD) (10%, 40%, and 100%) were used as flocculants for silica aggregates.
- What is a polymer flocculant?
- Among the synthetic polymer flocculants, the most important is water-soluble polyacrylamide (PAM)—a non-ionic, amorphous polymer which can be modified to ionic form in the copolymerization process [ 8, 9, 10 ]. The acrylamide monomer can be used for grafting or crosslinking of other type of polymers.
- Is cationic xylan a flocculant for pulping wastewater?
- Chen X, Si C, Fatehi P. Cationic xylan- (2-methacryloyloxyethyl trimethyl ammonium chloride) polymer as a flocculant for pulping wastewater. Carbohydrate Polymers. 2018;186:358–366. doi: 10.1016/j.carbpol.2018.01.068. [ PubMed] [ CrossRef] [ Google Scholar]
