What can I buy as an alternative to lab filters?

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Discussion Overview

The discussion revolves around alternative materials to lab filters for a specific experiment involving the creation of casein glue from skim milk. Participants explore various options that can be quickly obtained from common retail sources.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant mentions that coffee filters are too thick for their needs, specifying a weight of 300 g/m² compared to the 80 g/m² typically used in chemistry filters.
  • Another suggests using stacked paper towels to achieve the desired thickness.
  • Some propose cheesecloth as a potential filtering material.
  • Microfilament cleaning cloths are also mentioned as an alternative.
  • One participant shares that coffee filters did not pose a problem in their experiment, indicating a successful outcome despite initial concerns.
  • Paper lens wipes that leave no lint are suggested, with a caution to avoid those containing methanol.
  • A ball of cotton in a funnel is proposed as a simple filtering solution, with a later reply affirming its effectiveness for reducing mess.

Areas of Agreement / Disagreement

Participants present multiple competing views on suitable alternatives to lab filters, with no consensus reached on a single best option.

Contextual Notes

Some suggestions may depend on specific experimental conditions or desired outcomes, and the effectiveness of each alternative has not been quantitatively assessed.

mishima
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I have tried using coffee filters in the past but they seem to be too thick. The ones I have are 300 g / m^2. Just looking on wikipedia they say filters actually made for chemistry are 80 g / m^2. What other paper can I buy in a rush, in a pinch, from a place like Wal-mart that will be a suitable filter? Thanks.

I suppose I should mention the specific experiment we are doing this time is making casein glue from skim milk.
 
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what about stacked paper towels?

By stacked I mean 2 or more paper towels for proper thickness.

You also might be able to get some silk as an alternative.
 
Would cheesecloth work for your application?
 
or those microfilament cleaning cloths
 
Thanks for the suggestions, the coffee filters actually ended up not posing a problem this time.
 
Paper lens wipes (sans methanol). Get the ones that leave no lint.
 
A ball of cotton stuck in the funnel.
 
Alkim said:
A ball of cotton stuck in the funnel.

thats a good one expecially using the funnel for less mess.
 

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