Sweeping of is often not the best way.
Quite often you will find the hint: "Sweep it up!" But what to do if the substance creates dust?
If the spilling of the compound has occured outside the fumehood the dust will go anywhere else - for example into your clothing!
It is not needed to dissolve the solid compound but if it is moistured with water it will not create dust any more.
|If you pour or drop water onto the powder this will again create dust.|
|It is better to spray the water onto the powder.|
|Use a plant sprayer or an empty spray bottle of a household cleaner..|
Do not treat compounds this way which may react with water - but maybe you can find other suitable solvents.
It is not necessary to use a dust-pan and a hand-brush to remove the wet powder. If you do not like to get more equipment contaminated just try to use cards - for example index cards to push the material together and even to remove it.