The surface chemistry of MnO 2 in major ion sea water

Details The surface chemistry of MnO 2 in major ion sea water The surface chemistry of MnO 2 in major ion sea water

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.1041b&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 46, Issue 6, pp.1041-1052

Other

5

Scientific paper

The surface chemistry of MnO 2 in major ion seawater is defined by determining the stoichiometry of the reactions which describe the association of the surface hydroxyl groups with Na, Mg, Ca, and K ions, the intrinsic equilibrium constants which define these reactions, and the speciation of the surface at pH 8. The results indicate: 1. 1) that the surface forms monodentate complexes with Na and K ions and bidentate complexes with Mg and Ca ions; 2. 2) that pK 2 INT = 4.2, p * K INT Na = 3.0 ± 0.3, p * K INT K = 2.0 ± 0.2, p * K INT > Mg = 3.9 ± 0.1, and p * K INT > Ca = 3.3; and 3. 3) ion exchange processes other than with H are important and as a result 84.8% of the surface sites of MnO 2 in major ion seawater at pH 8 are complexed by H, 8.4% by Mg, 4.6% by Ca, 1.6% by Na, and 0.6% by K. Chloride and sulphate do not adsorb on MnO 2 in the pH range of natural waters.

Affiliated with

Also associated with

No associations

Rating

The surface chemistry of MnO 2 in major ion sea water does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The surface chemistry of MnO 2 in major ion sea water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The surface chemistry of MnO 2 in major ion sea water will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1353934