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Show Chemists Learn New Uses for SwellingClay SwellingClay Swelling SwellingClay Clay ; of Great Value to Agriculture Research results from the nation s slaboratorIes slaboratories slaboratories laboratorIes deabng dealIng with soil struc strut struttures structures structures tures and the industrial mdustrIal uses of clay claythe claythe claythe the absorption behavior of chlorine chlorinethe chlorinethe chlorinethe the surface tension of liquids and andthe andthe andthe the chemicalactivity chemical activity of blood and andserum andserum andserum serum were reported to more than than400 400 chemists from all parts of the thecountry thecountry thecountry country participating particlpatmg in the four fouri fourteenth fourteenth tourteenth i teenth annual colloid c01l0ld symposium of ofthe ofthe ofthe , the American Chemical ChemJcal Society at atthe atthe the University UDlverslty of Minnesota Mmnesota writes writesa a Minneapolis Mmneapol1s correspondent In the theClucago theChicago theChicago Clucago Chicago Daily NewsBentonite News NewsBentonlte Bentonlte Bentonite clay found principal principally principaly ly ] y in Wyoming which possesses the theablhty theability theability ablhty ability of swelling swellmg to in water was put putm putin putin m in the spot spotl spoti ! ght gist by Prof . , . Ernest A AHauser AHauser AHauser Hauser and C E Reed of the Massachusetts Mas Massachusetts Massachusetts sachusetts Institute of Technoogy Technology TechnoogyThey TechnologyThey TechnologyThey ] They reported several sevcral new dlseov discov dlseoveries discovcries discovcries eries cries relating to the clay wh ch Is Isbecoming isbecoming isbecoming becoming increasingly Increasmgly valuable m in mIndustry inindustry inindustry Industry and agriculture Benton BentonHe Bentonite Bentonite He ite was used recently to stop a serl sere serlOlS sereo senois o OlS is : leak in the cofferdam ol of the Coulle dam of the Columbia rIverBentomte riverBentonite river riverBentonite Bentonite Bentomte said the report IS ISf.dIng istding iLdtng ! f.dIng fdIng tding . ever broadening application In Inthe inthe lithe the oil od industry where it Is used usedduring usedduring usecduring during the drilling drillmg operation as a athickener athickener athickener thickener If 11 suspensions of bentonite ben bentonite bentonite tonite In water are allowed to rest restthey restthey restthey they will become increasingly increasmgy ] more moreVISCOUS moreviscous moreviscous VISCOUS and finally form a gel ( a ageatln agelatin agelatin geatln gelatin ] like material matenaD ) Upon me- me mechanical mechanical me mechanical - - chanical agitation they are quickly quicklyliquified quicklyllquified quicklyUquified liquified llquified . . . This procedure can be re repetted repeated i ipeated peated petted many times tunes and is known as asthIXotropy asthixotropy asthixotropy thIXotropy * ' A closer understanding understandmg of the reason rea reason reason son tor for the different swelling swe1ling capaci capacitIes capacities capacities tIes of bentonite bentomte and a better knO\\ knO know3 knOedge know3edge knowedge \ ! ] edge of the reasons for tor tl this s peculIar peculIarphenomtnon peculiarphenomenon peculiarphenomenon phenomtnon phenomenon : should materiallyassist materially materiallyassist materiallyassist assist in m broadening broadenmg out its mdus indus mdustrIal industrial industrial trIal application Furthermore any anymore anymore anymore more detailed knowledge should shouldprove shouldprove shouldprove prove of great value in m agnculturE agriculture agricultureand agricultureand : and soil sod preservation s nee nce soil is ismade ismade ismade made up to a large extent of clal clot clalminerals clotminerals claiminerals minerals |