?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGENDALIAN+LAJU+KOROSI+BAJA+St37+DALAM+MEDIUM%0D%0ANaCl+3%25+MENGGUNAKAN+INHIBITOR+EKSTRAK%0D%0ADAUN+SIDAGURI+(Sida+rhombifolia+L.)&rft.creator=ANI+SETIAWATI%2C+1517041037&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=530+Fisika&rft.description=Ekstrak+daun+sidaguri+digunakan+sebagai+inhibitor+korosi+pada+baja+St37+yang%0D%0Adirendam+dalam+medium+korosif+NaCl+3%25.+Analisis+awal+kandungan+senyawa%0D%0Amenggunakan+uji+tanin+dan+analisis+FTIR+yang+menunjukkan+bahwa+ekstrak+daun%0D%0Asidaguri+memiliki+kandungan+tanin.+Penelitian+ini+menggunakan+inhibitor+ekstrak%0D%0Adaun+sidaguri+dan+inhibitor+pabrikan+yang+memiliki+zat+anti+korosi.+Inhibitor%0D%0Aekstrak+daun+sidaguri+konsentrasi+0%2C+1%2C+2%2C+3%2C+dan+4%25+serta+inhibitor+pabrikan+yang%0D%0Adirendam+dalam+medium+NaCl+3%25+selama+144+jam.+Pengujian+laju+korosi%0D%0Adilakukan+dengan+metode+pengurangan+massa.+Hasil+penelitian+menunjukkan%0D%0Abahwa+peningkatan+pengurangan+massa+menurunkan+laju+korosi.+Efisiensi%0D%0Amaksimum+inhibitor+ekstrak+daun+sidaguri+adalah+86%2C154+%C2%B1+0%2C0008+%25+pada%0D%0Akonsentrasi+4%25.+Sampel+dikarakterisasi+dengan+XRD+yang+menunjukkan+bahwa%0D%0Afase+yang+terbentuk+adalah+Fe+murni+dengan+bidang+kisi+110%2C+200%2C+dan+211.+Hasil%0D%0Akarakterisasi+SEM+pada+sampel+dengan+inhibitor+ekstrak+daun+sidaguri+4%25+terlihat%0D%0Aproduk+korosi+yang+terbentuk+lebih+sedikit%2C+dengan+hasil+EDS+menunjukkan%0D%0Abahwa+persentase+Fe+lebih+besar+dibandingkan+dengan+inhibitor+ekstrak+daun%0D%0Asidaguri+dengan+konsentrasi+1%25.%0D%0AKata+kunci.+Inhibitor+korosi%2C+daun+sidaguri%2C+baja+karbon+St37%2C+dan+NaCl%0D%0ASidaguri+leaves+extract+is+used+as+a+corrosion+inhibitor+in+St37+steel+soaked+in+3%25%0D%0ANaCl+corrosive+medium.+Initial+analysis+of+the+compound+content+using+tannin%0D%0Atests+and+FTIR+analysis+showed+that+sidaguri+leaves+extract+has+tannin+content.%0D%0AThis+research+used+and+commercial+anti-corrosion+substances+as+inhibitor.+0%2C+1%2C+2%2C%0D%0A3%2C+and+4%25+concentrations+of+and+commercial+inhibitor+were+immersed+in+3%25+of%0D%0ANaCl+medium+for+of+24+hours.+Corrosion+rate+was+analized+using+mass+reduction%0D%0Amethod.+The+results+showed+that+increasing+of+mass+reduction+decreased+the%0D%0Acorrosion+rate.+Maximum+efficiency+of+sidaguri+leaves+extract+inhibitor+was%0D%0A86.154+%C2%B1+0%2C0008+%25+in+4%25+concentration.+Samples+were+characterized+by+XRD%0D%0Awhich+showed+that+the+formed+phase+was+pure+Fe+with+110%2C+200%2C+and+211+lattice%0D%0Aplane.+The+results+of+SEM+characterization+on+samples+with+4%25+sidaguri+leaves%0D%0Aextract+inhibitor+has+less+formed+of+corrosion+products+with+EDS+results+showed%0D%0Athat+Fe+percentage+was+greater+than+1%25+concentrations+of+sidaguri+leaves+extract.%0D%0AKey+words.+corrosion+inhibitor%2C+sidaguri+leaves%2C+St37+steel%2C+and+NaCl&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57556%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57556%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57556%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++ANI+SETIAWATI%2C+1517041037++(2019)+PENGENDALIAN+LAJU+KOROSI+BAJA+St37+DALAM+MEDIUM+NaCl+3%25+MENGGUNAKAN+INHIBITOR+EKSTRAK+DAUN+SIDAGURI+(Sida+rhombifolia+L.).++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57556%2F