Titanous sulfate

Titanium Sulfates. Solutions of titanous sulfate [10343-61-0] ate readily made by reduction of titanium(IV) sulfate ia sulfuric acid solutioa by electrolytic or chemical means, eg, by reduction with ziac, ziac amalgam, or chromium (IT) chloride. The reaction is the basis of the most used titrimetric procedure for the determination of titanium. Titanous sulfate solutions are violet and, unless protected, can slowly oxidize ia coatact with the atmosphere. If all the titanium has been reduced to the trivalent form and the solution is then evaporated, crystals of an acid sulfate 3 Ti2(S0 2 [10343-61-0] ate produced. This purple salt, stable ia air at aormal temperatures, dissolves ia water to give a stable violet solutioa. Whea heated ia air, it decomposes to Ti02, water, sulfuric acid, and sulfur dioxide. 

Afore Nitro group can also be detd by Titanous Sulfate Method, which is offered as an alter-... 

In this method the soln of titanous sulfate is standardized against p-nitraniline 6) 120° C Vacuum Stability Test. Using a 2.3 g dry sample and adjusting the apparatus described in Vol 1 of Encycl, p XXVI to 120°, determine the amt of gas evolved in 40hrs of heating. More detailed description of the test is given in MIL-STD-286A (1961). Method 403.1.2 and in PATR 3278(1965), pp 19-22 Fig 15... 

Procedure a)0.4g sample of rocket chge was treated in a fared 100 ml beaker with 50 ml of hot benzene and the mixt allowed to stand on a hot bath for 10 mins with frequent stir ring b)The beaker was removed, cooled to 10-12° and, by means of a filtering stick, the supernatant soln of a material, later identified as TNAns, was removed c)The residual material, later found to be HNDPhA, was washed 3 times with 5 ml of cold benzene (10°) and dried to const wt. The increase in wt of the beaker was considered as the amt of HNPhA d)After evaporating the benzene from soln (b) the residue was identified as TNAns by its mp (65-67°) and its equivalent wt of 13.5 was detnd by reduction with titanous sulfate e)The residue in beaker of proced (c) was identified as HNDPhA by its mp (242°) and its equiv wt of 12.6 f)The TNAns was confirmed, as such, by the mp of a mixt of the unknown material and pure TNAns (mixed mp), and the similarity of spectrophotometric curves and... 

Waughman [14] has described a microdiffusion method for the determination of ammonium and nitrate in soils. Nitrate in the sample solution is reduced to ammonia by titanous sulfate and the ammonia is then released from the solution and diffused and absorbed onto a nylon square impregnated with dilute sulfuric acid. The nylon is then put into a solution which colours... 

Keay and Menage [24] carried out an automated determination of nitrate and ammonia in 2 M potassium chloride extracts of soils. The sample is reacted in an autoanalyser with a 0.25% suspension of magnesium oxide the ammonia liberated from ammonium ion is absorbed in 0.1 M hydrochloric acid and determined spectrophotometrically at 625 nm by the indophenol blue method. The sum of ammonium and nitrate is determined similarly but with the addition of 4.5% titanous sulfate solution before distillation, thereby reducing nitrate but not nitrite to ammonia. The nitrate content of the soil can then be obtained by difference. 

Antongst other confounds which function as accelerators with diazonium salts are thiourea dioxide (formamldine sulfinic acid), and p-tolylhydrazine. whilst copper is the most efficient of the metal ions, catalytic qviantities giving a large Increase in R, some other transition metals have a marked effect. These include titanic sulfate and vanadyl sulfate. 

Use Treatment of chrome yellow and other colors, production of titanous sulfate used as reducing agent or stripper for dyes, laundry chemical. 

Ti(SO )2 3 H20 has been described, but its existence is doubtful. The basic sulfate, 2Ti02-3S03-3 H20, and the titanyl sulfate, TiOSO, are definite compounds related to the normal titanic sulfate. 

Volumctrically uranium may be determined by reducing an acid solution with zinc or titanous sulfate and oxidizing to the uranyl state by permanganate according to such a reaction as 2 KMnO< + 5 U(SO )2 + 2 H2O = 2 KHSO, + 2 MnSO< + H2SO4 + 5 UO2SO4. A solution of uranyl acetate may be titrated with sodium phosphate. Titration with... 

Titanic sulfate solution hydrogen peroxide tests.. . 128... 

How would you prepare a standard solution of titanous sulfate from this product, for use in volumetric analysis ... 

Titanic Sulfate Solution Hydrogen Peroxide Tests... 

Titanic sulfate. Titanium dioxide as usually obtained is practically insoluble in sulfuric acid, concentrated or dilute. One of the few ways to get it into solution is bisulfate fusion. 

Peroxides and dioxides. To show the difference between peroxides, which are salts of hydrogen peroxide and yield hydrogen peroxide on treatment with acids, and dioxides, which merely contain a metal in its +4 oxidation state, take small amounts of Ba02, Mn02, Pb02, and Na202 in test tubes, add 10 ml of ice-cold dilute sulfuric acid to each, shake for a minute, let the solids settle, and add titanic sulfate solution to each tube. Note whether or not a yellow color is produced. 

Peroxyadds and peracids. Test cold solutions of sodium peroxyborate, potassium or ammonium peroxydisulfate, and potassium perchlorate with dilute sulfuric acid and titanic sulfate. If you have not already done so, perform Test 2 of Experiment 48 (on peroxymonosulfuric acid). 

Test an aqueous solution of potassium peroxydisulfate with acidified potassium iodide solution and with titanic sulfate solu-... 

According to Sinha et al., successive syntheses of TiOi nanocrystals were achieved on cation exchange resin. Cation exchange resin immobilized titanium peroxo- or titanic sulfate was irradiated by a lOOW bulb separately as in a screw... 

Titanic earth. See Titanium dioxide Titanic hydroxide. See Titanium hydroxide Titanic oxide. See Titanium dioxide Titanic sulfate. See Titanium sulfate Titanium... 

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