Lead trihydrate

Lithium Iodide. Lithium iodide [10377-51 -2/, Lil, is the most difficult lithium halide to prepare and has few appHcations. Aqueous solutions of the salt can be prepared by carehil neutralization of hydroiodic acid with lithium carbonate or lithium hydroxide. Concentration of the aqueous solution leads successively to the trihydrate [7790-22-9] dihydrate [17023-25-5] and monohydrate [17023-24 ] which melt congmendy at 75, 79, and 130°C, respectively. The anhydrous salt can be obtained by carehil removal of water under vacuum, but because of the strong tendency to oxidize and eliminate iodine which occurs on heating the salt ia air, it is often prepared from reactions of lithium metal or lithium hydride with iodine ia organic solvents. The salt is extremely soluble ia water (62.6 wt % at 25°C) (59) and the solutions have extremely low vapor pressures (60). Lithium iodide is used as an electrolyte ia selected lithium battery appHcations, where it is formed in situ from reaction of lithium metal with iodine. It can also be a component of low melting molten salts and as a catalyst ia aldol condensations. 

Lead acetate [301-04-2]—The trihydrate of the lead salt of acetic acid Pb(OOCCH2)2 3H20. 

Chemical Designations - Syiwnyms Lead acetate trihydrate Neutral lead acetate Normal lead acetate Salt of Saturn Sugar of lead Chemical Formula Pb(C2H30i)2-3H20. 

A 500-ml rcund-bottom flask is equipped with a reflux condenser, a gas inlet tube, and a gas outlet leading to a bubbler. The flask is charged with a solution of rhodium (III) chloride trihydrate (2 g) in 70 ml of 95 % ethanol. A solution of triphenylphosphine (12 g, freshly recrystallized from ethanol to remove the oxide) in 350 ml of hot ethanol is added to the flask, and the system is flushed with nitrogen. The mixture is refluxed for 2 hours, following which the hot solution is filtered by suction to obtain the product. The crystalline residue is washed with several small portions of anhydrous ether (50 ml total) affording the deep red crystalline product in about 85% yield. 

The presence of PSCs also leads to the removal of nitrogen oxides (NO and NO2) from the gas phase. As long as there are significant amounts of NO2 it will react with chlorine monoxide (CIO) to produce chlorine nitrate (reaction 11). This species subsequently reacts with HQ on PSC surfaces to produce nitric acid (reaction 13), which remains in the condensed phase. Also, nitric acid directly condenses with water to form nitric acid trihydrate particles, hence it is not available to regenerate NO2 by photochemical processes, as it does when it is in the gas phase. 

As an example, a foam prepared from III, alumina trihydrate as a filler, benzoyl peroxide as a curing agent, and azobis formamide as a blowing agent, leads to a material with an oxygen index of 48, a long-term stability to at least 150 °C, and a smoke density about one fifth that of a commercial foam [284]. 

Hydrochloric acid, 37%, Merck, code 317, or equivalent Stannous chloride dihydrate, Merck, code 7815, or equivalent Cupric acetate monohydrate, Merck, code 2711, or equivalent Lead acetate trihydrate, Merck, code 7372, or equivalent... 

Laurie acid, 30, 106 31, 69 Lauric acid, vinyl ester, 30,106 Laurone, 31, 68 Lauroyl chloride, 31, 68 Lead acetate trihydrate, 31, 19 Lead sulfide, 31, 19... 

Lead 2,4,6-trinitroresorcinate, 70 729 Lead acetates, 74 792-793 Lead acetate trihydrate, 74 793 Lead-acid batteries, 3 431, 520-524 ... 

The trihydrate is obtained by dissolving lead monoxide in hot dilute acetic acid solution. Upon cooling, large crystals separate out. 

Synonym Neatsfoot Oil Necatorina Nechexane Neutral Ahhonium Pluoride Neutral Anhydrous Calcium Hypochlorite Neutral Lead Acetate Neutral Nicotine Sulfate Neutral Potassium Chromate Neutral Sodium Chromatetanhydrous Neutral Verdigris Nickel Acetate Nickel Acetate Tetrahyorate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Hexahydrate Nickel Bromide Nickel Bromide Trihydrate Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Iiu Fluoborate Nickel Fluoroborate Solution Nickel Fluoroborate Nickel Formate Nickel Formate Dihyorate Nickel Nitrate Nickel Nitrate Hexahydrate Nickel Sulfate Nickel Tetracarbokyl Nickelous Acetate Nickelous Sulfate Nicotine Nicotine Sulfate Nifos Nitralin Nitram O-Nitraniline P-Nitraniline Nitric Acid Nitric Acid, Aluminum Salt Nitric Acid, Iron (111) Salt Compound Name Oil Neatsfoot Carbon Tetrachloride Neohexane Ammonium Fluoride Calcium Hypochlorite Lead Acetate Nicotine Sulfate Potassium Chromate Sodium Chromate Copper Acetate Nickel Acetate Nickel Acetate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Nickel Bromide Nickel Bromide Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Fluoroborate Nickel Fluoroborate Nickel Fluoroborate Nickel Formate Nickel Formate Nickel Nitrate Nickel Nitrate Nickel Sulfate Nickel Carbonyl Nickel Acetate Nickel Sulfate Nicotine Nicotine Sulfate Tetraethyl Pyrophosphate Nitralin Ammonium Nitrate 2-Nitroaniline 4-Nitroaniline Nitric Acid Aluminum Nitrate Ferric Nitrate... 

Addition of fillers such as alumina trihydrate, antimony trioxide, molybdenum oxide [315], zinc borate and zinc borate complex [316] leads to increase in TS but decrease in elongation and NG migration/absorption. Addition of inorganic fillers also leads to increase in flame retardance. 

Dehydrations are chemical reactions that involve the loss of water. The acid-catalyzed dehydration of tetracycline yields the toxic epianhydrotetracycline [20]. The physical dehydration of theophylline hydrate and ampicillin trihydrate leads to a change of the crystalline structure of the drug [21]. 

Nicotinamide adenine dinucleotide reduced disodium salt trihydrate (reduced diphosphopyridine nucleotide sodium salt, NADH) [606-68-8/ M 763.5. This coenzyme is available in high purity and it is advised to buy a fresh preparation rather than to purify an old sample as purification will invariably lead to a more impure sample contaminated with the oxidised form (NAD). It has... 

Uses of lead acetate are discussed in Ref 2. US spec MlL-L-15172 lists the requirements of tech grade used in the manuf of antifouling paint for ship bottoms. The material shall be white,ctystn and contain 84.89% of (CH.COO). Pb which corresponds to 99% of the trihydrate. A 5 g sample dissolved at RT in 8 ml of recently distd w shall be no more than si turbid and shall become clear on the addn of 20 ml distd w and 2 drops of AcOH... 

The reaction between aldehydes and ammonia leads to compounds usually called aldehyde ammonias (equation 80). The first reported compound ( acetaldehyde ammonia ) was synthesized by Liebig (1835LA(14)133). Nielsen et al. (73JOC3288) have shown that most of these compounds are hexahydro-l,3,5-triazines, which are usually isolated as the trihydrates (Table 17). When aldehydes containing a branched alkyl substituent are used, the free hexahydro-l,3,5-triazines may be formed (Table 17). The kinetics of the reaction between acetaldehyde and ammonia have been studied by H NMR spectroscopy (73JOC2931), and shown to be rather complex. It is beyond the scope of this review to discuss the reaction fully. 

When O-alkylated or O-acylated D-glucals are heated in 9 1 acetonitrile-methanol with thallium nitrate trihydrate, ring contraction occurs to give compounds 117 in about 50% yield following, it may be assumed, addition of the metal ion at C-2 and methoxyl at C-l to lead to intermediates that ring contract to the 2,5-anhydro products.128... 

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