A Laboratory Manual of Qualitative Chemical Analysis for Students of Pharmacy
A Laboratory Manual of Qualitative Chemical Analysis for Students of Pharmacy
Theodore James Bradley
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MnCl 2 + (NH 4 ) 2 S = MnSO 4 4- (NH 4 ) 2 S = 2. MnSO 4 + NaOH = MnCl 2 + KOH = 4Mn(OH) 2 + O 2 = 4MnO(OH) + 2H 2 3. 2MnSO 4 + 2NH 4 OH = Mn(NH 4 ) 2 (S0 4 ) 2 + Mn(OH) 2 MnCl 2 + 2NH 4 C1 = Mn(NH 4 ) 2 Cl 4 4. Mn(XO 3 ) 2 + Na 2 CO 3 = MnS0 4 + (NH 4 ) 2 C0 3 = 5. 2Mn(NO 3 ) 2 + 5PbO 2 + 6HNO 3 = 2HMnO 4 + 5Pb(NO 3 ) 2 + 2H 2 O 6. 3Mn(OH) 2 + 4KNO 3 + Na 2 CO 3 = 2K 2 MnO 4 + Na 2 MnO 4 + 4NO + CO 2 + 3H 2 O ZINC, Zn 11 = 65. 37 Zinc is a bluish-white crystalline metal which is largely used i...n the metallic state. Brass is an alloy of copper and zinc. Galvanized iron is sheet iron coated with zinc. Zinc salts are poisonous and are generally colorless. IMPORTANT COMPOUNDS OF ZINC. Zinc acetate, U. S. P. , Zn(C 2 H 3 O 2 ) 2 . Zinc bromide, ZnBr 2 . Zinc sub-carbonate, precipitated zinc carbonate, U. S. P. , basic zinc carbonate, (ZnCO 3 ) 2 (Zn(OH) 2 ) 3 . Zinc chloride, U. S. P. , ZnCl 2 . Zinc iodide, ZnI 2 . Zinc oxide, U. S. P. , "zinc white, " ZnO. Zinc sulphate, U. S. P. , "white vitriol/' ZnSO 4 7H 2 O.
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