Qualitative analysis / by William Briggs and R.W. Stewart.

  • William Briggs
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: Qualitative analysis / by William Briggs and R.W. Stewart. Source: Wellcome Collection.

    139/180 (page 123)
    3. Acidulate with acetic acid and divide into three parts. (a) Boil and add CaCl2.# White ppt. sol. in HOI. (b) Boil and add FeCl3. White ppt. sol. in HC1. Yellowish - white ppt. soluble in HC1. (c) Add Pb (C2H302)2. Yel¬ low precipitate. Oxalate. H3As04. h3po4. HX'i04. 4. Acidify with HC1, boil to remove C02, just neutralize with NaOH, cool, and when quite cold add CaCl2 in excess. White ppt. soluble in cold KOH, repptd. on boil¬ ing ; sol. in acetic acid. White gelatinous ppt. insol¬ uble in cold KOH. Tartrate. (a) Insoluble in acetic acid, readily soluble in HC1. (b) Insoluble in acetic acid, difficultly sol. in HC1. (c) Soluble in acetic acid. No qqpt. in the cold; white ppt. on boilinq, insol. in KOH. Oxalate. HF. H3B03, H3P04, H3As04. Citrate. 5. Acidulate with HN03, boil, and just neutralize with dilute NaOH. Add FeCl3. Ked coloration, discharged by HC1. Formate or acetate. * If the presence of the H2S04 has been proved by 1 a, remove it by adding HC1 and BaCl2, an<t filtering off the precipitate of BaSCb. Neutralize the filtrate with NaOH, acidulate with acetic acid, and then add CaCl2.