Silver compounds acidity

Lead, because of its history as an air emission, has been fairly mobile and is particularly soluble in acid environments. Silver is used widely in the electronics industry. Intake of silver compounds can result in permanent discoloration of the skin and may result in damage to kidneys, lungs, mucous membranes, and other organs. 

Very sensitive to impact or friction, and explodes when moistened with sulfuric acid. See other metal acetylides, silver compounds... 

The separation and estimation of the two main groups of amino acids can be carried out in one experiment, instead of separately as described. The protein is hydrolysed by sulphuric acid, the tyrosine, cystine and diaminotrioxydodecanic acid are removed by crystallisation, and the diamino acids are precipitated by phosphotungstic acid. From this precipitate they are obtained by decomposition with baryta, and they are then separated by means of their silver compounds by Kossel, Kustcher and Patten s method. The filtrate from the phosphotungstic acid precipitate is freed from the excess of phosphotungstic acid by means of baryta, and the solution is treated by Fischer s ester method for the monoamino acids. 

Ion-selective electrode -determination of silver [SILVER COMPOUNDS] (Vol 22) -for fluoride analysis pLUORINE COMPOUNDS, INORGANIC - INTRODUCTION] (Vol 11) -for fluoroborates pLUORINE COMPOUNDS, INORGANIC - BORON - FLUQROBORIC ACID] (Vol 11) -for hydrogen ion activity [HYDROGEN-LON ACTIVITY] (Vol 13)... 

Olefins - [FEEDSTOCKS - COALCHEMICALS] (Vol 10) - [FEEDSTOCKS-PETROCHEMICALS] (VollO) - [HYDROCARBONS - SURVEY] (Vol 13) -m automobile exhaust [EXHAUSTCONTROL, AUTOMOTIVE] (Vol 9) -catalyst for stereospeafic polymerization [TITANIUMCOMPOUNDS - INORGANIC] (Vol 24) -esters from [ESTERIFICATION] (Vol 9) -hydroxylation using H202 [HYDROGEN PEROXIDE] (Vol 13) -luminometer ratings [AVIATION AND OTHER GAS TURBINE FUELS] (Vol 3) -osmium oxidations of [PLATINUM-GROUP METALS, COMPOUNDS] (Vol 19) -polymerization [SULFONIC ACIDS] (Vol 23) -reaction with EDA [DIAMINES AND HIGHER AMINES ALIPHATIC] (Vol 8) -silver complexes of [SILVER COMPOUNDS] (Vol 22)... 

Well-cooled sulphuryl chloride, diluted with 15-20 vols. of chloroform, is sat. with dry ammonia, the precipitated product dissolved in water, the soln. acidified with nitric acid, and the whole of the chlorine precipitated with silver nitrate the filtered soln. is neutralized with alkali, treated with silver nitrate, and the crystalline precipitate, which consists of silver sulphimide and some other silver derivative, separated by filtration. After adding a further quantity of silver nitrate, the clear soln. is treated with alkali, when silver sul-phamide is obtained as a colourless, amorphous precipitate, which, however, is invariably mixed with some other silver compound, probably the same as that present in the silver sulphimide precipitate. In order to remove this impurity, the well-washed precipitate is treated with hydrochloric acid in quantity exactly sufficient to convert the silver into chloride, and the strongly acid soln. is neutralized with ammonia and mixed with silver nitrate, when only the silver compound of unknown composition is precipitated pure silver sulphamide can now be precipitated by adding silver nitrate and excess of ammonia, and on decomposing this compound with the necessary quantity of hydrochloric acid, a neutral or feebly acid soln. of sulphamide is obtained. Sulphamide is deposited in large, colourless crystals when its aq. soln. is evaporated over sulphuric acid under reduced press. 

Stokes, H. N., Amer. Chem.1895, 17, 275 Explodes on heating, friction or contact with sulfuric acid. See other A -METAL DERIVATIVES, SILVER COMPOUNDS... 

The tetrahydrated salt explodes on the slightest friction. See Azidodithioformic acid See other silver compounds See related ACYL AZIDES... 

See Perchloric acid Paper, Silver compounds See Zinc Sodium hydroxide (reference 3)... 

J)) Chlorides To a test tube half full of distilled water add a few drops of nitric acid, and then a few drops of silver nitrate solution. Do the same with faucet water or water known to contain a chloride in solution. What is the difference between the results The cloudiness, or solid, is due to the precipitation of silver chloride, which is always formed when silver nitrate is added to hydrochloric acid or a chloride in solution. Silver chloride is soluble in ammonium hydroxide. Try it. This is the usual test for chlorides (and conversely for soluble silver compounds), and will hereafter be used without further description. 

Scheele, C. W. (1742-1786). Discovered chlorine, tartaric acid, sensitivity of silver compounds to light (photochemistry) and oxidation of metals. 

Do not pour silver residues dowm the drain Silver and silver compounds kill microorganisms in sewage treatment plants. The silver and silver residues are collected, dissolved in concentrated nitric acid and treated with hydrochloric-acid (1 1). The i Cl precipitate is allowed to settle, the mother liquor decanted off and filtered, the precipitate again treated wnth hydrochloric acid (1 1) in a beaker, and the Ag ions reduced by means of /.inc rods. I he silver precipitate formed i.s filtered, washed free of chloride ions and zinc and either fused with borax or converted to AgNOj. 

---