Burettes need help cleaning

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Labbie
Posts: 3234
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Burettes need help cleaning

Post by Labbie »

Hi folks, I have two old type Burettes, that I do not seem to be able to clean. They have grease marks on the in side of the Burettes. I have tried warm soapy water, HCL diluted. Perhaps I should give up and throw them away.

They would be great as spare's.

Regards :cry:
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Ocker
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State/Location: NSW

Post by Ocker »

Try rinising with acetone / proponone
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KimFenley
Posts: 46
Joined: 01 Jun 2006, 10:00
State/Location: NSW

Post by KimFenley »

Hi

Try a conc. solution of Pyroneg, its fairly agressive detergent, and soak for a day or too. I still like Chromic Acid for such things, but that a no no these days.

Kim
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Robb
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Joined: 01 Jun 2006, 10:00
State/Location: NSW

Cleaning Burettes

Post by Robb »

Hi All,

I would intend to use a solution of Oxalic Acid and keep it in for at least a week.

If this does not work try using Conc. Sulfuric and keep this acid in the burettes for a week also.

It is certainly worth a try.

Hope this helps,

Robb.....
Dr Robert Crosdale. MRACI. NSS. NSSA. NASA.
Ph.D (Chem), Post Grad Ph.D (Physics), M.Ed, B.Sc (Hons), Dip. Appl. Sc. (Chem)
Lake Munmorah High School.
University of New England.
University of New South Wales.
University of Newcastle.

To understand the Universe from our perspective, we need to look towards our own backyard first for answers.

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JudyM
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Joined: 01 Jun 2006, 10:00
State/Location: NSW

Burette cleaning

Post by JudyM »

Hi Pommie,

Did you know you can buy burette brushes? I got mine from Q Stores some time ago now so I'm not sure if they still keep them.

If you can't find one I'll send you one of mine.

Cheers
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Labbie
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Post by Labbie »

Hi Judy, The acetone worked very well, had forgotten about brushes. Good idea.

Thank you Sue
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