CLEAPSS Supporting practical science and technology
CLEAPSS Resources
Latest Resources
Search For:
Showing results 1 to 10 of 79
1 234

Members only resource Click to download Document.
Sodium silicate solution (water glass) will precipitate coloured metal silicates that appear to grow like underwater plants.
words matched: precipitate

Members only resource Click to download Document.
Brief risk assessment guidance and experimental notes for a range of activities involving barium nitrate(V) and barium peroxide (Hazcard 11).
words matched: precipitate

Members only resource Click to download Document.
A microscale method of showing preciptation reactions. For more about this method see the video below which goes with this sheet.
words matched: precipitate

Members only resource Click to download Document.
Halogenoalkanes contain polar covalent carbon-halogen bonds and undergo nucleophilic substitution reactions. This small-scale activity can be used to investigate the hydrolysis reaction of various hal.. more
words matched: precipitate

Members only resource Click to download Document.
Although both aldehydes and ketones contain the carbonyl functional group (-C=O), only aldehydes give a positive test (formation of an orange to brick-red precipitate of copper(I) oxide) with Fehling’.. more
words matched: precipitate

Members only resource Click to download Document.
Risk assessment information for ammonium sulfide, potassium sulfide and sodium sulfide salts and solutions.
words matched: precipitate

Members only resource Click to download Document.
A small amount of sodium is added to concentrated hydrochloric acid. There is fizzing and a precipitate of sodium chloride forms but no explosion. If potassium is used there is ignition but again, no .. more
words matched: precipitate

Members only resource Click to download Document.
Common anions are tested on a plastic covered worksheet, for quick easy disposal. Using solutions with minimum concentrations allows closer observations and initiates talking points. Students can phot.. more
words matched: precipitate

Free resource Click to view on YouTube
This video shows a new microscale method for pupils to discover and try out different precipitate reactions.
words matched: precipitate

Members only resource Click to download Document.
The common negative ions, carbonate (CO32-), sulfate(VI) (SO42-) and the halides (Cl–, Br– and I–) can be simply tested for in test tube reactions. The method described here uses a more dilute ammo.. more
words matched: precipitate

Showing results 1 to 10 of 79
1 234