?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+PENAMBAHAN+SENYAWA+EKSTRAK+BIJI+PINANG+(Areca+catechu%2C+L.)+SEBAGAI+INHIBITOR+KERAK+KALSIUM+SULFAT%0D%0A(CaSO4)+DENGAN+METODE+UNSEEDED+EXPERIMENT%0D%0A&rft.creator=Silvana+Maya+Pratiwi%2C+1017011050&rft.subject=Karya+Karya+Umum+%3D+000&rft.description=%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRAK%0D%0A%0D%0A%0D%0ASTUDI+PENAMBAHAN+SENYAWA+EKSTRAK+BIJI+PINANG+(Areca+catechu%2C+L.)+Sebagai+INHIBITOR+KERAK+KALSIUM+SULFAT%0D%0A(CaSO4)+Dengan+METODE+UNSEEDED+EXPERIMENT%0D%0A%0D%0A%0D%0AOleh%0D%0A%0D%0A%0D%0ASilvana+Maya+Pratiwi%0D%0A%0D%0A%0D%0ADalam+penelitian+ini+telah+dilakukan+penambahan+inhibitor+senyawa+ekstrak+biji+pinang+pada+kerak+kalsium+sulfat+(CaSO4)+menggunakan+metode+tanpa+penambahan+bibit+kristal+(unseeded+experiment)+pada+konsentrasi+CaSO4+sebesar+0%2C15%3B+0%2C20+dan+0%2C25+M+serta+variasi+inhibitor+sebesar+50%2C+150%2C+dan+250+ppm.++Hasil+penelitian+berdasarkan+analisis+kualitatif+menggunakan+Scanning+Electron+Microscopy+(SEM)+menunjukkan+bahwa+ukuran+kristal+CaSO4+tanpa+penambahan+inhibitor+lebih+besar+dibandingkan+dengan+penambahan+inhibitor.+Sedangkan+analisis+kuantitatif+menggunakan+Particle+Size+Analyzer+(PSA)+menunjukkan+bahwa+distribusi+ukuran+partikel+kerak+CaSO4+menjadi+lebih+kecil+dengan+adanya+penambahan+inhibitor+yang+dinilai+berdasarkan+pada+ukuran+rata-rata+partikel+kerak+CaSO4+yakni+tanpa+penambahan+inhibitor+memiliki+ukuran+rata-rata+7%2C5+nm+sebanyak+29%2C26+%25%2C+sedangkan+setelah+penambahan+inhibitor+memiliki+ukuran+rata-rata+sebesar+6%2C5+sebanyak+24%2C06+%25.+Berdasarkan+persentase+(%25)+kemampuan+menghambat%2C+konsentrasi+optimum+inhibitor+dalam+menghambat+kerak+CaSO4+0%2C15+M+yaitu+pada+konsentrasi+250+ppm+dengan+hasil+24+%25.%0D%0A%0D%0A%0D%0AKeyword+%3A+CaSO4%2C+Inhibitor%2C+Ekstrak+Pinang.+%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT+%0D%0A%0D%0A%0D%0AADDITIONAL+STUDIES+OF+COMPOUND+PINANG+EXTRACT+(Areca+catechu%2C+L.)+AS+INHIBITOR+OF+CALCIUM+SULFATE+(CaSO4)+With+UNSEEDED+METHODS+EXPERIMENT%0D%0A%0D%0A%0D%0ABy%0D%0A%0D%0A%0D%0ASilvana+Maya+Pratiwi%0D%0A%0D%0A%0D%0AIn+this+research%2C+it+has+been+conducted+addition+of+compound+inhibitor+pinang+extract+on+the+calcium+sulfate+(CaSO4)+scale+using+unseeded+experiments+at+various+concentrations+of+growth+solutions+from+0%2C15%3B+0%2C20+and+0%2C25+M.+The+various+concentrations+of+inhibitors+added+were+around+50%2C+150%2C+and+250+ppm.+The+results+based+on+qualitative+analysis+using+Optical+Microscopy+and+Scanning+Electron+Microscopy+(SEM)+showed+that+size+of+CaSO4+crystal+without+the+addition+of+inhibitor+is+bigger+than+with+the+addition+of+inhibitor%2C+whereas+quantitative+analysis+using+a+Particle+Size+Analyzer+(PSA)+showed+that+the+distribution+of+particle+size+of+CaSO4+crystals+with+the+addition+of+inhibitor+is+smaller+than+without+the+addition+of+inhibitor+which+have+an+average+size+of+7.5+nm+at+29%2C26+%25%2C+while+after+the+addition+of+inhibitors+have+an+average+size+of+6.5+as+much+as+24.06+%25.+Based+on+the+percentage+(%25)+of+inhibitor+ability%2C+the+optimum+concentration+of+inhibitor+in+inhibitiny+scale+formation+of+CaSO4+in+the+growth+solution+of+0%2C15+M+is+250+ppm+with+the+result+of+24%25.%0D%0A%0D%0A%0D%0AKeywords+%3A+CaSO4%2C+inhibitor%2C+pinang+extract.+%0D%0A%0D%0A&rft.publisher=Fakultas+MIPA&rft.date=2014-12-10&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F4%2FHALAMAN%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F5%2FHALAMAN%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F6%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F7%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F8%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F9%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F10%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F11%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F13%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F15%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F16%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F17%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6080%2F1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