"AnalaR" Standards for Laboratory Chemicals: Incorporating Improved Standards for the Analytical Reagents Originally Designated as "A.R." |
Common terms and phrases
acetic acid acid and heat acid and ignite add 1 ml Alkalis allow to stand ammonium thiocyanate ammonium thiocyanate solution amyl acetate amyl alcohol Arsenic As2O3 Assay barium chloride solution carbon dioxide-free water chloric acid clear colourless solution cool crystalline powder defined in appendix described in appendix dilute ammonia solution dilute hydrochloric acid dilute nitric acid dilute sulphuric acid Dissolve 1 g filter heat to boiling Heavy Metals Pb ignite gently Impurities Chloride Cl Iron Fe KMnO4 Limits of Impurities Maximum Limits Metals and Iron.-Dissolve methyl red minutes N/1 HCl N/1 NaOH N/1 per cent Nessler's reagent Nitrate NO3 O.OOI per cent opalescence pass hydrogen sulphide phenolphthalein phosphate reagent potassium cyanide potassium iodide reaction silver nitrate solution sodium hydroxide Solubility solution 1 ml solution and allow solution and pass stain produced standard colours standard stain stannous chloride Sulphate SO4 titrate with N/1 turbidity or precipitate water and add water and titrate