Ferric Ammonium Sulphate Chloride

Ferric ammonium sulphate solution, 1169 Ferric chloride solution, 1169 Ferric Chloride (test), 133 Ferric iron, test on stomach contents, 5 Ferricyanide test on stomach contents, 5 Ferrioxamine, 516... 

A method of assay, applicable to most medicinal dyestuffs, depends upon their reduction with titanous chloride. The procedure has to be modified in detail for dissolving the dyestuff and for some dyes the endpoint is not indicated by a sharp decolorisation and an excess of titrant must be added, the excess being back titrated with ferric ammonium sulphate. 

Heated with concentrated sulphuric acid, perthioeyanic acid gives sulphur dioxide, carbon dioxide, thiourea, thiocyanic acid and ammonium sulphate. Heated with chlorine the acid gives cyanogen chloride, sulphur chloride, hydrogen chloride and a reddish-brown insoluble residue. Ferric chloride gives a coloration similar to that produced with thiocyanic acid.10... 

Experiment Prepare a solution of a ferrous salt by dissolving 2 grams of ferrous ammonium sulphate in 20 cc. of water, adding a little dilute sulphuric acid and a piece of iron wire. Test both this solution and a solution of a ferric salt (nitrate or chloride) with potassium ferrocyanide, potassium ferricyanide, and potassium sulphocyanate. Tabulate the results. These constitute the standard tests for ferrous and ferric salts. Write equation. 

Materials Solutions of ferric chloride, of ferrous ammonium sulphate, of potassium ferrocyanide, of potassium ferricyanide, of ammonium thiocyanate. 

Directions Put 5 c.c. of ferric chloride solution into a small test tube, fill the tube with water, shake the solution and then pour a third of it into each of two other test tubes. Dilute and divide into thirds in the same way 5 c.c. of ferrous ammonium sulphate solution. Add a few drops of solutions of potassium ferrocyanide, of potassium ferricyanide, and of ammonium thiocyanate to the three solutions of ferric chloride respectively and likewise to the three solutions of ferrous ammonium sulphate. (1) Tabulate the results obtained in these six tests. (2) Do the results indicate the presence of any ferric salt in the ferrous salt Would you expect the production of any color in the absence of ferric salts (3) State one test for a ferrous salt and two tests for a ferric salt. 

Many salts have the power of precipitating albuminoid substances from solution. The nature of the precipitate differs radically according to the salt used. In certain cases, the precipitate obtained is a metallo-organic compound, produced by a combination of salts with albuminoid substance. This is the case with ferric acetate, neutral or basic lead acetate, copper sulphate, and mercuric chloride. With other salts, such, for example, as with ammonium sulphate, zinc sulphate, potassium acetate, sodium sulphate and chloride, the precipitate is of another nature. The albuminoids precipitated have under-... 

Homopolymer acrylic Dolanit Zefran Ricem 140 G G F Zinc and ferric chloride, ammonium sulphate, thiocyanates... 

Aluminium sulphate Ammonium bifluoride Ammonium bisulphite Ammonium bromide Ammonium persulphate Antimony trichloride Beryllium chloride Cadmium chloride Calcium hypochlorite Copper nitrate Copper sulphate Cupric chloride Cuprous chloride Ferric chloride Ferric nitrate... 

The acid filtrate is treated with excess of ammonium chloride and with ammonia to precipitate the ferric oxide and any alumina, the precipitate being tested for the latter in the usual way. The filtrate is divided into three parts one is acidified with acetic acid and tested for copper with ferrocyanide in another the manganese (if present) is precipitated with ammonium sulphide, lime and magnesia being then tested for in the third sulphates are tested for with barium chloride. Manganese is best sought in a separate portion of the substance by the well-known dry reaction. 

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