Laboratory Methods of Inorganic Chemistry, 2nd English Ed. 1928
SODIUM HYPOCHLORITE. 115 and the latter being a much stronger oxidizing agent than sodium hypochlo- rite, or the hypochlorite io ...
(^116) OXY-HALOGEN ACIDS. current density should be the same at the anode as at the cathode and about 15 amperes per 100 sq. cm. ...
POTASSIUM CHLORATE. 117 of neutral sodium chromate. Before titrating with sodium thio- sulphate, acidify strongly and dilute wel ...
118 OXY-HALOGEN COMPOUNDS. volume, add 20 c.c. of a 20% manganous sulphate solution to pre- vent the hydrochloric acid from inte ...
IODIC ACID. 119 solved potassium perchlorate on a filter and recrystallize it from 200 c.c. of water. Yield, 30 g. The potassium ...
120 OXY-HALOGEN COMPOUNDS. " Time Reaction." If a solution of iodic acid is added drop by drop to an aqueous solution of sodium ...
POTASSIUM BROMATE. 121 nearly accomplished, add 1 g. more of iodine. Concentrate by evaporation until on cooling nearly all of t ...
122 NITRITES AND NITRATES. by removing oxygen, one of the products of the dissociation, causes the decomposition to continue unt ...
SILVER NITRATE. 123 Dissolve 190 g. of crude Chile saltpeter in 200 c.c. of boiling water in a previously weighed flask. To the ...
124 NITRITE AND NITRATES. be present, which will frequently be the case, evaporate the solu- tion to dryness and heat the silver ...
ELECTROLYTIC PREPARATION. 125 Heat again, at first moderately then more strongly, and stir vigorously all the while until the ma ...
126 OXY-ACIDS OF SULPHUR. it is necessary to supplement the heating effect of the current. The formation of permanganate begins ...
OXY-ACIDS OF SULPHUR. 127 For a further discussion of these formulas, see Nos. 155 and 156. Regarding the constitution of sulphu ...
128 OXY-ACIDS OF SULPHUR. acid, H 2 S 6 Oe. These can be prepared only in aqueous solutions or in the form of their salts. (Cf. ...
ANTIMONY SULPHATE. 129 rate at which air is drawn through the apparatus. The total air admitted is regulated by a screw clamp pl ...
130 OXY-ACIDS AND SALTS OF SULPHUR. suction or by evaporation. Washing with anhydrous acetic acid is effective, however, because ...
BARIUM DITHIONATE. 131 ammonia. Dissolve 28 g. of potassium sulphate (15% less than the calculated amount) in the combined filtr ...
132 OXY-ACIDS AND SALTS OF SULPHUR. A sample of the salt dissolves clear in water and remains unchanged upon the addition of a l ...
POTASSIUM PERSULPHATE. 133 The older name for hyposulphurous acid is hydrosulphuroua acid. It should not be confused with thiosu ...
134 CARBONATES. as possible in the following manner: Dissolve 0.3 g. of the salt in a beaker with 10 c.c. of 0.1-normal ferrous ...
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