High Capillary Length Materials: 1cm+ Easily Found

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    Capillary Length
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The discussion centers on identifying materials with high capillary lengths, specifically those exceeding 1 cm, and the factors influencing these lengths. Key points include the importance of surface tension and density in calculating capillary length, with participants noting that the formula is known but tedious to apply to each material. Suggestions for finding relevant data include conducting a Google Images search for tables of capillary lengths, emphasizing the need to specify both the material and the atmosphere involved. It is mentioned that typical capillary lengths for most liquids, including mercury, are generally below 3 mm, but these lengths can increase significantly when the surrounding atmosphere is another liquid, which could be beneficial for certain applications.
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Which materials have high capillary length, and can be found easily? (above 1cm)
 
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ddddd28 said:
Which materials have high capillary length, and can be found easily? (above 1cm)
What reading have you been doing so far on this? What affects the capillary length of a material?
 
The formula is known to me. I just don't want to check each material.(surface tension, and density)
Do you know where can I find a table of capillary length?
 
ddddd28 said:
The formula is known to me. I just don't want to check each material.(surface tension, and density)
Do you know where can I find a table of capillary length?
Start with a Google Images search on Table of Capillary Lengths :smile:
 
You need to specify two or more materials. The tube, the target material, and depending on the atmosphere the atmosphere.

BoB
 
rbelli1 said:
You need to specify two or more materials. The tube, the target material, and depending on the atmosphere the atmosphere.

BoB
ok, but what value should I put instead of the surface tension γ in the formula? water- atmosphere, water- solid? √(γ/gρ)
I read somewhere that the capillary lengh doesn't exceed even 3mm for most of the liquids, even mercury. However, if the atmosphere is another liquid, the capillary lengh increases significantly, which makes it easier for my purposes.
 
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