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  • quaternary
  • This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. (google.com)
  • The quaternary ammonium salts of the present invention exhibit improved gelling characteristics. (google.com)
  • 16. The method of claim 1 wherein said cationic surfactant is erucyl amidopropyltrimethyl ammonium quaternary salt, and said additive is sodium xylene sulfonate. (google.com)
  • The paper products contain a vegetable oil based quaternary ammonium chemical softening compound. (google.co.uk)
  • Examples of preferred vegetable oil based quaternary ammonium chemical softening compounds include diester di(oleyl)dimethyl ammonium chloride (DEDODMAC) (i.e., di(octadec-z-9-eneoyloxyethyl)dimethyl ammonium chloride) derived from canola oil and/or high oleic safflower oil. (google.co.uk)
  • The tissue softness is further enhanced by controlling the purity of the fatty acyl groups and the di-substituted versus mono-substituted long chain hydrocarbyl substituent ratio in the quaternary ammonium compounds. (google.co.uk)
  • purity
  • One such research is "Chemical reduction method for preparing copper nano-powder with high purity using sodium hypophosphite as reductant", which uses tetraaminecopper (II) sulfate. (wikipedia.org)
  • Cerium
  • It is a strong oxidant, the potential for reduction is about +1.44V. Cerium(IV) sulfate is a related compound. (wikipedia.org)
  • A crystallographic study shows that the compound contains the Ce2(SO4)88− anion, where the cerium atoms are 9 coordinated by oxygen atoms belonging to sulfate groups, in a distorted tricapped trigonal prism. (wikipedia.org)
  • Mariappan Periasamy, Ukkiramapandian Radhakrishnan "Cerium(IV) Ammonium Sulfate" Encyclopedia of Reagents for Organic Synthesis, 2001, John Wiley & Sons. (wikipedia.org)
  • Copper
  • Some of the recent research and development for copper include various studies of tetraaminecopper (II) sulfate. (wikipedia.org)
  • The magnetic and thermal properties of tetraammine copper (II) sulfate monohydrate have been extensively studied and have been interpreted as those of a substance containing a magnetic linear chain structure. (wikipedia.org)
  • nitrogen
  • In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil , while contributing essential nitrogen for plant growth. (wikipedia.org)
  • Globally demand for ammonium sulphate market is driven by factors such as increasing consumption of nitrogen based fertilizers globally to increase crop yields and increasing usage of ammonium sulphate in the food and beverage industr. (researchandmarkets.com)
  • Sodium
  • The CIR report concluded that both sodium and ammonium lauryl sulfate "appear to be safe in formulations designed for discontinuous, brief use followed by thorough rinsing from the surface of the skin. (wikipedia.org)
  • anions
  • Above the critical micelle concentration, the anions then align themselves into a micelle, in which they form a sphere with the polar, hydrophilic heads of the sulfate portion on the outside (surface) of the sphere and the nonpolar, hydrophobic tails pointing inwards towards the center. (wikipedia.org)
  • readily
  • The HERA project also conducted an environmental review of alkyl sulfates that found all alkyl sulfates are readily biodegradable and standard wastewater treatment operations removed 96-99.96% of short-chain (12-14 carbons) alkyl sulfates. (wikipedia.org)
  • concentration
  • Most alkyl sulfates exhibit low acute oral toxicity, no toxicity through exposure to the skin, concentration dependent skin irritation, and concentration dependent eye-irritation. (wikipedia.org)
  • salt
  • The solid state salt of tetraamminecopper(II) sulfate contains the [Cu(NH3)4H2O]2+, which has a square pyramidal molecular geometry. (wikipedia.org)
  • polar
  • The molecule consists of a long nonpolar hydrocarbon chain and a polar sulfate end group, the combination of which make the material a surfactant. (wikipedia.org)
  • SOLUTION
  • Water glass of density 1.06 made acidic by sufficient acetic acid to make it gel, with 0.05 N copper sulfate in it, covered by a 1 percent solution of hydroxylamine hydrochloride produces large tetrahedrons of metallic copper in the bands. (wikipedia.org)