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All Journal Jurnal Studi Pemerintahan JURNAL KIMIA SAINS DAN APLIKASI Jurnal Natur Indonesia Pharmaciana: Jurnal Kefarmasian Sainteknol : Jurnal Sains dan Teknologi Gadjah Mada International Journal of Business agriTECH Jurnal Kebijakan dan Administrasi Publik Al-Kimia Jurnal Bioedukatika Indonesian Journal of Chemistry Chemistry Indonesian Journal of Chemical Research Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Biota Molekul: Jurnal Ilmiah Kimia Berkala Penelitian Hayati INSECTA: Integrative Science Education and Teaching Activity Journal Molekul: Jurnal Ilmiah Kimia Biodik: Jurnal Ilmiah Pendidikan Biologi Bioma : Jurnal Ilmiah Biologi
Sabirin Matsjeh
Universitas Ahmad Dahlan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences

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Journal : agriTECH

 1 
Indikator Titrasi Asam-Basa dari Ekstrak Bunga Sepatu (Hibiscus rosa sinensis L) Siti Nuryanti; Sabirin Matsjeh; Chairil Anwar; Tri Joko Raharjo
agriTECH Vol 30, No 3 (2010)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.327 KB) | DOI: 10.22146/agritech.9671

Abstract

Titration acid-base needs indicator  to show the change of color on interval of hydrogen exponent/degree of acid (pH). Indicator of synthetic which always be used have disadvantages like chemical pollution,  stock and expensive of pro- duction  cost. The research has been carried out to substitute the synthetic indicator with herbal indicator extracted from flower crown of Hibiscus rosa sinensis L extract. The herbal indicator was extracted from the flower crown Hibiscus rosa sinensis L using a mixture methanol-acetic acid. Then it was evaluated with phenolphthalein and methyl orange(E merck) comparer to titration the acid-base, they are strong acid-strong base, weak base-strong acid and weak acid-strong base. The result of research show that herbal indicator  of flower crown Hibiscus rosa sinensis L to show theequivalent point in all titrations give peer result with the comparison. With the research result hoped that indicatortitration acid-base flower crown Hibiscus rosa sinensis L is able to as replace synthetic indicator  (metyl orange andphenolphtalein) which always be used before.ABSTRAKTitrasi asam-basa memerlukan indikator untuk menunjukkan perubahan warna pada setiap interval derajad keasaman (pH). Indikator sintetis yang digunakan selama ini mempunyai beberapa kelemahan seperti polusi kimia, ketersediaan dan biaya produksi mahal. Upaya penelitian sudah dilakukan untuk menggantikan indikator sintetis dengan indikator dari ekstrak mahkota bunga sepatu. Indikator herbal tersebut dibuat dengan cara mengekstrak mahkota bunga Hibiscus rosa sinensis L dengan mengunakan pelarut metanol-asam asetat. Kemudian dievaluasi dengan indikator pembanding fenolftalein dan metil oranye (produksi E merck) untuk titrasi asam-basa yaitu asam kuat-basa kuat, basa lemah-asam kuat dan asam lemah-basa kuat. Dari hasil penelitian diketahui bahwa indikator dari mahkota bunga sepatu untuk menunjukkan titik ekivalen dalam titrasi tersebut memberikan hasil yang setara dengan indikator pembandingnya. Hasil penelitian menunjukkan, indikator dari mahkota bunga sepatu dapat sebagai pengganti indikator sintetis (metil oranye dan fenolftalein) yang selama ini digunakan.
Co-Authors Ainun Mardiah Andi Hairil Alimuddin Andi Hairil Alimuddin Andi Hairil Alimuddin Andi Hairil Alimuddin Chairil Anwar Chairil Anwar Chairil Anwar Chairil Anwar Chairil Anwar Chairil Anwar Chairil Anwar Chairil Anwar Damayanti Iskandar Daratu Kusuma Eviana Putri Deni Pranowo Dewi Kumalasari Dwi Siswanta Dwi Siswanta Elfi Susanti V. H. Eti Nurwening Sholikhah Etika Dyah Puspitasari Fika Pita Loka Fikroh, Retno Aliyatul Hanoch J Sohilait HAPSARI, MAHARANI Hardjono Sastrohamidjojo Harno Dwi Pranowo Harno Dwi Pranowo Harno Dwi Pranowo Iqna Yudiyanti Ismiyarto Ismitarto J Stuart Grossert Jefry Presson Jumina Jumina Jumina Jumina Juni Lestari, Tri Tunggal Kapelle, Imanuel B. D. Kartika Sari, Prita Anggraeni KRISDIYATMIKO, KRISDIYATMIKO kusmiyati kusmiyati Kusmiyati kusmiyati La Harimu Lukas Pardosi Meta Permata Putri Mudasir Mudasir Mudasir Mudasir Mudasir Muhammad Idham Darussalam Mardjan Muhammad Idham Darussalam Mardjan Mustofa Mustofa Mustofa Mustofa Mustofa Mustofa Mustofa Mustofa Mustofa Mustofa Mutmainah Mutmainah Nanik Lestari, Nanik Novia Suryani Nuniek Herdyastuti Nuniek Herdyastuti Nurohmah, Beta Achromi Oedjijono Oedjijono Pambudi, Wisnu Puji Lestari Purwati Purwati Puspitasari, Etika Dyah Ratna Dewi Kusumaningtyas Respati Tri Swasono Retno Aliyatul Fikroh Retno Aliyatul Fikroh Retno Ambarwati Rokhima Rostiani S Mursiti Santi Nur Handayani Sari Edi Cahyaningrum Siti Nuryanti Siti Nuryanti Sri Juari Santosa Sri Juari Santosa Susilawati Susilawati Susilawati Susilawati Syarifah Asyura Tri Joko Raharjo Tri Joko Raharjo Tri Redjeki Tutik Dwi Wahyuningsih Winarto Haryadi Winarto Haryadi Yuri Pradika Zulfah Az Zahra