High-molecular-weight phosphozene derivative is produced by reaction of NH4Cl and PC15 in the presence of CaSO4.H2O and HSO3(NH2) as promoters. The polymer, linear polydichlorophosphazene, is produced at 30-40 percent yield based on the PC15 at a relatively low cost.CARRIEDO ULE GABINO A....
Concerning A1, acidic-basic properties, polarizability, molecular volume, presence of lone-pair electrons, dipolar moment, etc., may enhance/diminish the affinity of the inhibitor to the surface. However, a knowledge of these properties alone is insufficient for predicting and understanding inhibition ...
Write the formula of the compound; and iii). Show your setup and calculate the molar mass of the compound. Determine the formula weight (molecular mass) of each of the following substances: (a) calcium sulfate, CaSO4; (b...
Ca + H2SO4 arrow CaSO4 + H2 Describe how to prepare 750.0 mL of a standard 2.00 M sulfuric acid solution. Show all calculations. Use this formula: wt = M - mm x V What is the molar mass of acetic acid? What is the molar mass of (NH4)2O? What is the molar mass of hydrogen ...
(processing of the signals by the node), network topology (structure and connections between the nodes), and learning rules (how the weight of the molecular parameters are initialized and adjusted using an algorithm). The nodes in an ANN are usually arranged in three layers: the input, hidden...
Seeds are soaked in solutions containing inorganic salts, e.g., NaCl, KNO3, CaCl2, CaSO4. Halopriming with NaCl was reported to enhance germination and seedling establishment in milk thistle (Silybum marianum L., Sedghi et al. 2010), as well as to increase salt tolerance of ...
Murariu M., Da Siva Ferreira A., Pluta M., Bonnaud L., Alexandre M., Dubois P.: Polylactide (PLA)-CaSO4 composites toughened with low molecular weight and polymeric ester-like plasticizers and related perform- ances. European Polymer Journal, 44, 3842-3852 (2008). DOI: 10.1016/j.eur...
A seeded crystal growth technique has been used to study the influence of solution pH and temperature ranging from 25 to 50 掳C on the performance of polymers of varying functional groups as calcium sulfate dihydrate (CaSO42H2O, gypsum) crystal growth inhibitors. Results indicate that at constant...