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The grade of metamorphism of Polish coals and their natural and activated floatability

✍ Scribed by Jerzy Sablik

Book ID
103673467
Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
587 KB
Volume
9
Category
Article
ISSN
0301-7516

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The critical surface tension of Polish c
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## Measurement of the contact angle of water, glycerol, formamide. methylene iodide, cc-bromonaphthalene, ethylene glycol and its aqueous solutions was carried out on the surface of Polish coal of rank 3 1.1,3 1.2,32.1, 32.2,33,34 and 35. On the basis of these results, the critical surface tension