help with ruined glassware!!!

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bjackson13
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Joined: Thu Apr 05, 2007 9:33 am

help with ruined glassware!!!

Post by bjackson13 »

My chemistry class did a bouncy ball lab and left sodium silicate on the glassware. The white hazy residue will not scrub off. any suggestions?
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Hwguy
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Joined: Wed Dec 06, 2006 5:30 am

Post by Hwguy »

Sodium silicate is soluble in water so should have been removed. The haze may be from another contaminant or possibly fine scrathes. Washing the glassware with a solvent like acetone may remove the contaminant
In Physical Chemistry experiments must be reproducible, they should fail the same way each time
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