6131 LAB: QUALITATIVE ANALYSIS OF THE PRESENCE OF COMMON TOXICANTS

ANALYSIS OF ALCOHOLS

Dichromate Test

ANALYSIS OF ANILINE

O-Cresol ammonia Test

ANALYSIS OF ASPIRIN

Ferric chloride Test

Bromine Water Test

Millon's Test

Methyl Ester Test

ANALYSIS OF ATROPINE

Gerard's Test

Gulielmo's Test

Vitali's Test

ANALYSIS OF BARIUM

Flame Test

ANALYSIS OF BENZODIAZEPINES

Zimmerman Test

ANALYSIS OF BARBITURATES

Dille-Koppanyi Test

Koppanyi-Zwikker Test

Ekehert's Test

Mercuric chloride Test

Millon's Test

ANALYSIS OF BORATES

Turmeric Paper Test

ANALYSIS OF BROMIDES

Silver nitrate test

ANALYSIS OF CADMIUM

Hydrogen sulfide Test

Potassium ferrocyanide Test

ANALYSIS OF CAFFEINE

Amalic Acid Test

Tannic Acid Test

ANALYSIS OF CARBAMATE PESTICIDES

Furfuraldehyde Test

Ammoniacal silver nitrate Test

Dichromate Test reagent

2% Potassium Dichromate

Concentrated sulfuric acid

Dichromate Test result

Yellow color of the dichromate changes to green or blue

O-Cresol ammonia Test reagent

Aqueous o-cresol

Aqueous ammonium hydroxide

Concentrated hydrochloric acid

O-Cresol ammonia Test result

Strong royal blue color developing rapidly = presence of p- aminophenol

Ferric chloride Test reagent

Ferric chloride solution

Ferric chloride Test result

Blue or violet solution

Millon's Test reagent

Millon's reagent

Millon's Test result

Deep red solution

Bromine water Test reagent

Bromine water solution

Bromine water Test result

Strawberry red solution

Methyl ester Test reagent

Methyl alcohol

Concentrated sulfuric acid

Methyl ester Test result

Strawberry red solution

Vitali's Test reagent

Alcoholic potassium hydroxide

Nitric acid

Vitali's Test result

Gray ppt

Gulielmo's Test reagent

Concentrated sulfuric acid

Gulielmo's Test result

Red solution with odor of flower

Gerard's Test reagent

Soln 1: 1mL of sample + 1mL of ethanol

Soln 2: 1mL of alcoholic solution of mercuric chloride

Gerard's Test result

Yellow solution

Flame Test reagent

Platinum Wire

Concentrated Hydrochloric Acid

Flame Test result

Yellow-green flame = barium salts

Green flame = copper and thalium salts

Orange/yellow coloration = large amounts of sodium salts

Zimmerman Test reagent

Soln 1: 2,4 - dinitrobenzene + methanol

Soln 2: 15% of Potassium

hydroxide aqueous solution

Zimmerman Test result

Red-purple to pink color

Dille-Koppanyi Test reagent

Soln 1: Cobaltous acetate tetrahydrate + Glacial acetic acid + Absolute methanol

Soln 2: Isopropylamine + Absolute methanol

Dille-Koppanyi Test result

Purple color

Koppanyi-Zwikker Test reagent

Cobalt nitrate in ethanol

Pyrrolidine

Koppanyi-Zwikker Test result

Blue-violet

Millon's Test reagent (barbiturates)

Millon's reagent

Millon's Test result (barbiturates)

Gelatinous white ppt

Ekehert's Test reagent

Formalin

Mercuric chloride

Sodium hydroxide

Ekehert's Test result

Yellow coloration

Mercuric chloride Test reagent

Mercuric chloride

Sodium hydroxide

Mercuric chloride Test result

Yellow ppt

Turmeric paper Test reagent

Turmeric solution (10g/L) in methanol

Aqueous hydrochloric acid (1 mol/L)

Aqueous ammonium hydroxide (4 mol/L)

Turmeric paper Test result

Brownish-red color (initial) → Green-black

Silver nitrate Test reagent

Aqueous silver nitrate solution (10 g/l)

Aqueous nitric acid (2 mol/l)

Concentrated ammonium hydroxide (relative density 0.88)

Silver nitrate Test result

White ppt = chloride

Off-white ppt = bromide

Creamy yellow = insoluble ppt

Hydrogen sulfide Test reagent

Hydrogen sulfide

Hydrogen sulfide Test result

Yellow ppt

Potassium ferrocyanide Test reagent

Potassium ferrocyanide

Potassium ferrocyanide Test result

White ppt

Amalic acid Test reagent

Chlorine water / Ammonium hydroxide

Amalic acid Test result

Reddish brown solution / Transcient purple solution

Tannic acid Test reagent

Tannic acid solution

Hydrochloric or sulfuric acid

Tannic acid Test result

Heavy white ppt

Furfuraldehyde Test reagent

Tannic acid solution

Hydrochloric or sulfuric acid

Furfuraldehyde Test result

Heavy white ppt

Ammoniacal silver nitrate Test reagent

Ammoniacal silver nitrate

Ammoniacal silver nitrate Test result

Silver mirror