1. Metal oxides or hydroxides are Amphoteric

2. Cobalt oxides and hydroxides; commercial cobalt oxides

3. Hydroxides with highly-charged metal cations are often Amphoteric

4. Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids

5. Because metals have multiple oxidation states, they form Amphoteric oxides and hydroxides.

6. Process for the electrolytic production of quaternary ammonium hydroxides and alkoxides

7. SIBOM® Boehmites are fully crystalline aluminium oxide hydroxides with low impurity content

8. Bauxites are residually enriched rocks, mostly composed of Al-hydroxides (gibbsite, boehmite and diaspore), kaolinite, Fe-oxy-hydroxides and Ti-oxides, which form from intense lateritic weathering of aluminosilicate protoliths

9. Thermal decomposition and hydrothermal reactions of aluminum oxides and hydroxides were studied.

10. treatment with bases (for example, sodium, potassium, ammonium hydroxides) in order to obtain naphthenic acids;

11. 2923 || Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined ||

12. Basicities OF TRIVALENT ACTINIDES AND LANTHANIDES AND SOLUBILITIES OF THEIR HYDROXIDES..United States: N

13. Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined

14. Many metals (such as copper, zinc, tin, lead, aluminium, and beryllium) form Amphoteric oxides or hydroxides

15. Corundum is an aluminum oxide mineral of the oxides and hydroxides group, with structural formula Al2O3

16. It is actually a rock composed of aluminum hydroxides of mostly Bohmite, Gibbsite and Diaspore

17. The alkali hydroxides of sodalime are presumably responsible for its reaction with halogenated inhalation anaesthetics.

18. Different Antacids use different metal hydroxides, such as Al(OH)3 or Mg(OH)2

19. The inventive nickel-mixed hydroxide is produced by coprecipitating the hydroxides in an alkaline medium.

20. Bicarbonates are produced by the action of CO2 on carbonates or hydroxides in the presence of water

21. All the Group III Cations form insoluble sulfides or hydroxides in a basic solution saturated with H2S

22. The Chelates’ increased stability in alkaline media, and the formation of sparingly soluble metal hydroxides referred to earlier

23. What does Bauxite mean? The principal ore of aluminum, composed mainly of hydrous aluminum oxides and aluminum hydroxides

24. The deliberately coagulated or autocoagulated rubbers are treated with hydroxides of alkali metals before the drying process.

25. Every Antacid is a base, the most common being metal hydroxides, metal carbonates or a mixture of the two

26. Alkali, any of the soluble hydroxides of the Alkali metals—i.e., lithium, sodium, potassium, rubidium, and cesium

27. The activation energy for thermal dehydroxylation in vacuum of alkaline-earth hydroxides has been calculated from thermogravimetric data.

28. Bauxite definition, a rock consisting of aluminum oxides and hydroxides with various impurities: the principal ore of aluminum

29. The baseis selected from alkalimetal or alkaline earth metal hydroxides and alkali metal or alkaline earth metal superbases.

30. Amphoteric hydroxides act as either Bronsted-Lowry bases (accepting protons) or Lewis acids (accepting an electron pair), depending on reaction conditions.

31. 17 Various elements, such as iron, titanium(Sentencedict.com), manganese and sulphur can be oxidized to form oxides or hydroxides.

32. Bauxite does not exhibit any particular composition instead it is just an assortment of clay minerals, aluminum hydroxides, and hydrous aluminum oxides.

33. Freely soluble in water and dilute acids and dilute solutions of alkali hydroxides; practically insoluble in ethanol, acetic acid, acetone, and chloroform

34. Each of the hydroxides is bonded to only two aluminium atoms because one third of the octahedrons are vacant a central aluminium.

35. and one or several substances selected from aluminum oxides, hydroxides, phosphates, hydrogen phosphates, dihydrogen phosphates and polyphosphates are precipitated on the TiO¿2?

36. The octahedrons are composed of aluminium ions with a +3 charge bonded to six octahedrally coordinated hydroxides with a -1 charge.

37. The specification describes a process for recovering alkali metal hydroxides from an organic liquor such as black liquors derived from pulping wood chips.

38. The basic solution can be one or a mixed solution of hydroxides, carbonates, bicarbonates, formates and acetates of alkali metal and ammonium.

39. is deposited on the solids, in addition to one or several substances selected from aluminum oxides, hydroxides, phosphates, hydrogen phosphates, dihydrogen phosphates and polyphosphates.

40. The chitosan solution is then alkalized with agitation using aqueous hydroxides and/or their salts to attain a pH not lower than 7.0.

41. Iron and manganese bicarbonates can be removed in the cold lime-soda treatment by pre-aeration, followed by precipitation as the insoluble hydroxides.

42. Alluvial floodplain mudstones of the late Maastrichtian Whitemud Formation of southern Saskatchewan contain abundant vertebrate faecal remains preserved as siderite and Fe-hydroxides.

43. Alkalis are basically soluble hydroxides of the alkaline and the alkaline earth metals groups, found in Groups I and II of the periodic table of chemical elements

44. Under conditions of standard temperature and pressure , metal carbides react strongly with water to form metal oxide s or hydroxides and flammable acetylene gas, e.g.

45. Definition of Bauxite : an impure mixture of earthy hydrous aluminum oxides and hydroxides that is the principal source of aluminum Other Words from Bauxite Example Sentences Learn More about …

46. Boehmite (γ-AlOOH) and gibbsite (α-Al (OH) 3) are important archetype (oxy)hydroxides of aluminum in nature that also play diverse roles across a plethora of industrial applications.

47. Other articles where Bicarbonate is discussed: oxyacid: Carbonate and hydrogen carbonate salts: These salts can be prepared by the reaction of carbon dioxide with metal oxides and metal hydroxides, respectively

48. The tertiary Arsines, such as As (CH3)3, trimethyl arsine, and the quaternary arsonium iodides and hydroxides, (CH3)4AsI and (CH3)4AsOH, tetramethyl arsonium iodide and hydroxide, have been obtained

49. The influence of the starting materials as sources of aluminum, amorphous aluminum hydroxides, pseudoboehmite, allophane or gibbsite, has also been examined by X-ray diffraction, scanning electron microscopy, and by energy dispersive analysis.

50. The hydroxides of the Group I (alkali metals) and Group II (alkaline earth) metals usually are considered to be strong Bases.These are classic Arrhenius Bases.Here is a list of the most common strong Bases.

51. Because of their age, they are frequently cemented with various types of matrix (clay, silica, carbonates, iron oxides and hydroxides; sulfates, etc.), which considerably reduces their actual and effective porosity and, therefore, their permeability.

52. That absolute accumulation can occur in non-Mn-bearing weathering horizons (kaolinitic horizons) to form Mn nodules in which kaolinite is dissolved. This process provides Al which combines to Mn3+ forming Al-Mn hydroxides (lithiophorite).

53. Basalt is usually grey to black in colour, but rapidly weathers to brown or rust-red due to oxidation of its mafic (iron-rich) minerals into hematite and other iron oxides and hydroxides.

54. Certain inorganic salts, organic bases, quaternary ammonium salts or hydroxides (the dissolved component, DC), display sufficient solubility (and current carrying abilites) in POL, OL or in mixtures of liquid (POL) and liquid (OL) to further improve the electrical conductivity of the mixture.

55. From measurements of the kinetics of the reaction between iron amalgam and dilute acids, alkali hydroxides or water solutions of copper, lead, cadmium and zinc it can be concluded that the metal in the amalgam possesses in fact the potential, calculated according theory.

56. In the process, a mixture of oxides, hydroxides, alkoxides or compounds of a transition metal convertible into oxides and carbon are heat-treated in the temperature range from 800 to 1400 °C until a porous composite is formed and then treated with hydrogen or a hydrogen-containing gas.

57. ‘The key step in a unimolecular reaction is the formation of the carbon Cation, or carbonium ion, by the departure of the leaving group.’ ‘The functional groups of iron hydroxides may sequestrate some Cations and anions.’ ‘It is called a Cation if a positive charge exists and an anion if a negative charge exists.’

58. Derivatographie analysis offers the possibility to detect the presence of crystalline and amorphus aluminium hydroxides in the aluminium oxide barrier-layers, formed by anodic oxidation, i.e. to clear the composition of the so-called γ1-Al2O3 phase. Furthermore, the phase-composition of the aluminium oxide barrier-layers can be determined by combination of this method with the phosphoric acid-chromic acid extraction technique.

59. The invention relates to a method for preparing alcoxylated carboxylic acid esters by reacting carboxylic acid esters with alkylene oxydes having 2 to 4 carbon atoms, in the presence of a basic catalyst, characterised in that the basic catalyst is a mixture of sodium and potassium compounds selected in the group consisting of hydroxides, oxides, carbonates, alcoholates and carboxylates with a weight ratio of sodium compounds to potassium compounds between 20:1 and 1:20.

60. Thus, according to the present invention there is provided a method for making a substantially pure higher MW phenylalkylsiloxane from a lower MW phenylalkylsiloxane by polymerisation of the lower MW phenylalkylsiloxane under vacuum in the presence of an aqueous alkaline solution containing one or more alkalis selected from the group of potassium hydroxide, magnesium hydroxide, calcium hydroxide, rhubidium hydroxide ammonium hydroxide, tetraalkylammonium hydroxide, tetraalkyl ammonium alkoxide and phosphonium hydroxides in an amount of from 50ppm or greater based upon the amount of lower MW phenylalkylsiloxane.

61. The invention provides a high hardness solid ceramic metal catalyst obtained by mixing and sintering 0wt% - 80wt% active catalyst material with a support material, wherein the support material is a silica alumina that is a mixed metal oxide and the active catalyst material is at least one of oxides, carbonates, and hydroxides of any kind selected from magnesium (Mg), calcium (Ca), zinc (Zn), titanium (Ti), manganese (Mn), vanadium (V), beryllium (Be), copper (Cu), zirconium (Zr), strontium (Sr), tin (Sn), and barium (Ba).