Due to the properties of sand, when we heat it over Bunsen burner it can be used as heating buffer. The sand would absorb heat even after it is removed so we can use it similarly to a hot water bath but the sand will eventually cool down and need reheating. It is common to use this sand heat bed technique in organic laboratories or when gentle/slow heating is required.
A Bunsen burner is not made of pyrex, it's metal. Usually a beaker or flask made out of pyrex glass is heated by the flame from the Bunsen burner.
[object Object]
Because it is flammable substances
What_is_the_black_substance_on_the_bottom_of_the_evaporating_dish_after_it_has_been_heated_on_a_bunsen_burner
The evaporating dish would not be harmed if it was heated on a hot plate, but it should be heated on a bunsen burner.
Many salts do not decompose when heated.
A Bunsen burner is not made of pyrex, it's metal. Usually a beaker or flask made out of pyrex glass is heated by the flame from the Bunsen burner.
Many salts do not decompose when heated.
Sodium Carbonate
Sodium Carbonate
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For example stable oxides as aluminium oxide.
Certainly! That's what they're designed for.
Because it is flammable substances
Sodium Carbonate
What_is_the_black_substance_on_the_bottom_of_the_evaporating_dish_after_it_has_been_heated_on_a_bunsen_burner
The evaporating dish would not be harmed if it was heated on a hot plate, but it should be heated on a bunsen burner.