Synthesis of alum from aluminum

Suny Oneonta.

synthesis of alum limiting reagent

Potassium flame test is carried out by dipping a clean flame test loop in the sample solution. The suction filtration set as in Figure 1 was set. In a quantitative characterization, the chemical formula and the structure i. Edexcel Additional Science.

The solution was filtered to remove the residue and other impurities. Materials and Methods: The first part of this experiment was to dissolve the aluminum foil in 1.

synthesis of alum theoretical yield

Place the foil in a reaction beaker labeled with your initials. Add distilled water dropwise while stirring until the alum dissolves. The alum crystal was air dried in desiccator and the mass of the crystal is recorded after drying.

Cool the crucible to room temperature on the triangle this takes about ten minutes. The melting point is higher than the theoretical melting point because thin coating of paint outside the aluminium can is not removed.

alum from waste aluminum cans answers

Record your results. This cause the reflux system cannot be used to condense hydrogen gas produced from the reaction between aluminium scraps and potassium hydroxide solution hence the experiment is stopped due to sudden water-break.

When aluminum cans are recycled curbside, they help pay for community services.

Synthesis and analysis of alum lab report

Once you have made your final weighing, invert the crucible and the anhydrous alum should fall out. This second crop of crystals may also be collected, but if you choose to collect these crystals, they should be kept separate from the main crop. Sulfate test is started by placing a few crystals of alum in a test tube. Swirl to suspend any crystals remaining in the beaker, and pour the suspension into the filter. Once you have cleaned the crucible, it is important that you handle it only with the crucible tongs. It is economical to produce alum from used aluminium cans. Once the crystals were drained, they were weighed along with the filter paper and the mass was recorded. Clean your crucible by placing a few drops of 1 M NH3 solution in the empty crucible and scrubbing with a paper towel.
Rated 8/10 based on 60 review
Chemis Lab report