Digitale Medien
[s.l.]
:
Nature Publishing Group
Nature
367 (1994), S. 602-602
ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] SIR - Although we agree with Jones1 that the brown stain on tea (see ref. 2) is formed by the adsorption of tannin from tea on the surface of the film of calcium carbonate that settles on teapots, where does the solid film of CaCO3 come from? CaCO3 precipitates when hard water is boiled, due to the ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/367602a0
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