Qualitative Analysis
Colorimetric or turbidimetric methods of analysis have been developed for most of the elements and ionic species. These methods can be employed to quickly determine the chemical composition of an unknown substance. Before attempting to analyze an unknown it is useful to develop a logical process to follow. Care must be taken in sampling, collecting and washing precipitates, performing confirmatory tests and most importantly, recording data. It is also good laboratory practice to always analyze a known with each unknown as a double check on the reagents being used.
The unknowns will be analyzed for one of six possible anions: Cl-, Br-, I-, PO42-, NO3-, and SO42-. A standard solution for each anion will also be run.
Kit Includes:
- Sodium Bromide, 0.1M - 100 ml x 1 Bottle
- Sodium Chloride, 0.1M - 100 ml x 1 Bottle
- Sodium Iodide, 0.1M - 100 ml x 1 Bottle
- Sodium Nitrate, 0.1M - 100 ml x 1 Bottle
- Sodium Phosphate, 0.1M - 100 ml x 1 Bottle
- Sodium Sulfate, 0.1M - 100 ml x 1 Bottle
- Nitric Acid, 6M UN2031 - 200 ml x 1 Bottle
- Ammonium Hydroxide, 6M UN2672 - 50 ml x 1 Bottle
- Mineral Oil - 100 ml x 2 Bottles
- Ammonium Molybdate Reagent UN2672 - 75 ml x 1 Bottle
- Diphenylamine Reagent - 75 ml x 1 Bottle
- Barium Chloride Reagent - 75 ml x 1 Bottle
- Potassium Permanganate Reagent - 100 ml x 1 Bottle
- Ferric Nitrate Reagent - 100 ml x 1 Bottle
- Silver Nitrate Reagent - 50 ml x 1 Bottle
Materials needed but not supplied:
- (# 6135-3) Test Tubes 13 x 100 - 680 pcs
- (# 6103-27) Funnel - 15 pcs
- (# 6201-6) Filter Paper - 15 pks
- (# 3981-12) Glass Stirring Rods - 15 pcs
- (# 4305-1) pH Paper - 15 pks
Please note that the pictures may show items not included in this kit, the pictures are there to show kit functionality. Please refer to the product details above for more information on the contents of this kit.
DOT: UN2031, Nitric acid, 8, PG II
UN2672, Ammonia solutions, 8, PG III, Ltd Qty
UN1830, Sulfuric Acid solution, 8, PG II, Ltd Qty
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RETURNS NOT ACCEPTED: To ensure no contamination, we have a NO RETURN policy for this product. Absolutely NO RETURNS even if the box / container is unopened.
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