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What Adheres/sticks To Sand?

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#1 bc55

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Posted 27 December 2016 - 06:57 PM

Hello,

 

Does anyone know what materials or compounds adhere/stick to sand? For example, like when a magnet that sticks to a fridge.

 

 



#2 DrKrettin

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Posted 28 December 2016 - 04:36 AM

Cement powder does, although I guess the effect is not magnetic.


Edited by DrKrettin, 28 December 2016 - 04:36 AM.


#3 exchemist

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Posted 28 December 2016 - 04:51 AM

Hello,

 

Does anyone know what materials or compounds adhere/stick to sand? For example, like when a magnet that sticks to a fridge.

Water.

 

The angle of contact between water and silica is very close to zero, indicating a high degree of affinity between water and sand. This is due to the polarity of water and  - more specifically - hydrogen bonding between the oxygen atoms in silica with hydrogen atoms in water.

 

(I now await the arrival of our resident H-bond obsessive, to write more screeds of somewhat garbled chemistry on the subject.....:) )



#4 OceanBreeze

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Posted 28 December 2016 - 08:59 AM

Hello,

 

Does anyone know what materials or compounds adhere/stick to sand? For example, like when a magnet that sticks to a fridge.

 

slideshow_2.0.jpeg



#5 exchemist

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Posted 28 December 2016 - 10:44 AM

slideshow_2.0.jpeg

This would be due to water, dried-on salt or sun cream. By the way, what a lot of bangles she is wearing, esp. for the beach. 



#6 DrKrettin

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Posted 28 December 2016 - 10:46 AM

This would be due to water, dried-on salt or sun cream. By the way, what a lot of bangles she is wearing, esp. for the beach. 

 

What bangles?



#7 fahrquad

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Posted 30 December 2016 - 01:12 PM

This would be due to water, dried-on salt or sun cream. By the way, what a lot of bangles she is wearing, esp. for the beach.

 

All the better to attract barracudas.



#8 HydrogenBond

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Posted 31 December 2016 - 07:26 AM

There are some sports coatings which are sprayed onto and/or mixed with a sand base. These water based coatings adhere to and bind the sand, into a flexible but tough and abrasive resistant matrix, that can cushion the legs from the impact of sports. 





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