Model studies on the effects of neutral salts
Interactions between inorganic salts and polyacrylamide in aqueous solutions and gels. Journal of Polymer Science Part B: Polymer Physics 2003, 41 (5) , 508-519. DOI: 10.1002/polb.10406. Serge N. Timasheff. Thermodynamic binding and site occupancy in the light of the Schellman exchange concept.
sites for polyacrylamide, and that polymer ad-sorption takes place through H-bonding with these surface hydroxyls (8). Effect of pH Interactions of the above anions with FeiOJ are stronger at lower pH where the charge dif-ference between the anion and the Fe203 is higher. Consequently, depression of polymer
Interactions between inorganic salts and polyacrylamide
Interactions between inorganic salts and polyacrylamide in aqueous solutions and gels Article in Journal of Polymer Science Part B Polymer Physics 41(5):508 - 519 · March 2003 with 821 Reads
Interactions between inorganic salts and polyacrylamide in aqueous solutions and gels
Rheological properties of hydrolyzed polyacrylamide/sodium
The effects of inorganic salts NaCl, KCl, CaCl 2 and MnCl 2 with the same anions but different cations on the rheological properties of hydrolyzed polyacrylamide/sodium oleate (HPAM/C 17 H 33 COONa) mixed system were investigated systemically by steady-flow and oscillatory experiments at different concentrations of inorganic salts and temperatures, respectively.
The swelling of polyacrylamide (PAAm) gels increased with rising glucose concentrations, and so did the osmotic pressure of the soluble polymer and its intrinsic viscosity.
The effect of CaCl2 on the interaction between hydrolyzed
The effect of CaCl 2 on the interaction between partially hydrolyzed polyacrylamide (HPAM) and sodium stearate (C 17 H 35 COONa) was investigated by steady-flow and oscillatory experiments at 25 °C and 70 °C, respectively. The results of steady-flow measurement indicate that the viscosities of both HPAM and HPAM/C 17 H 35 COONa systems decrease obviously with the addition of CaCl 2, and show
A number of studies on the interactions between particles and polymer flocculants with SFA and AFM are available. 192-199 For example, Wang et al. 192 studied the effect of solution salinity in the interactions between a chitosan‐graft‐polyacrylamide (chi‐g ‐PAM) and mica‐coated surface.
Quantification of single-stranded nucleic acid
DNA interactions have been reported, only a few studies describe the quantification of complex equilib-ria. Apparent equilibrium constants have been deter-mined for the interactions of Ag+ [11], Mg2+ [12], Ca2+ [12] and Fe2+ [13] salts with double-stranded DNA. Two different modes of capillary electrophoresis,
Methods. Aggregate-free loess with high water holding capacity was used as growing substrate to test the effects of two rates (10 and 40 kg ha −1) of a linear PAM on the growth of maize (Zea maize L.) for a period up to one month. The PAM effects were evaluated at three levels of soil water content (SWC) and three plant ages, based on water consumption, shoot and root biomass, as well as
Confirmation of polymerisation effects of sodium chloride
of this work was to study the effects of table salts additives, K4[Fe(CN)6] and KIO3, on the elimina-tion of AA applied onto the mentioned inorganic salts and characterise reactions of its elimination. MATERIALS AND METHODS Chemicals AA of p.a. purity was purchased from Fisher Scientific (Loughborough, United Kingdom) and
Bentonite is characterized by the large specific surface, good adsorption, ion exchange ability, and nontoxicity. An enhanced bentonite base composite flocculant (BTA) can be prepared from treating the calcium base bentonite and compositing various functional additives. Bentonite was firstly treated by citric acid, then the talc and activated carbon turned to be acid part and simultaneously
- What is poly Aluminium chloride (PAC)?
- In the vast field of water treatment, the role of chemicals in ensuring the purity and safety of water cannot be overstated. Among these, poly aluminium chloride (PAC) has emerged as a cornerstone in both potable water and wastewater treatment processes.
- What is poly Aluminium chloride?
- This article delves into the chemical properties, uses, and safety considerations of poly aluminium chloride, while also examining its pivotal role in the water treatment industry. Poly aluminium chloride, commonly abbreviated as PAC, is a complex chemical compound used primarily as a coagulant in water purification.
- Why is poly Aluminium chloride used in water treatment?
- The primary use of poly aluminium chloride in the water treatment process is to remove impurities and clarify water. This is achieved through a process known as coagulation, where PAC helps to bind particles into larger aggregates that can be easily removed.
- What makes Pac a great water treatment solution?
- One of PAC’s standout features is its unparalleled versatility, making it a go-to solution for a diverse range of water treatment scenarios. Whether deployed in industrial wastewater treatment, municipal water purification, or as part of the treatment process for raw water intended for drinking, PAC showcases its adaptability.
