서지주요정보
염화철(Ⅲ) 용액으로 부터 단순분산 적색 산화철 입자의 제조시 그 크기와 형태에 대한 첨가제의 영향 = The effects of additives on the size and shape of monodispersed hematite particles prepared form ferric chloride solutions
서명 / 저자 염화철(Ⅲ) 용액으로 부터 단순분산 적색 산화철 입자의 제조시 그 크기와 형태에 대한 첨가제의 영향 = The effects of additives on the size and shape of monodispersed hematite particles prepared form ferric chloride solutions / 이진성.
저자명 이진성 ; Lee, Jin-Seong
발행사항 [서울 : 한국과학기술원, 1988].
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소장정보

등록번호

4105063

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8823

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The effects of additives of sodium phosphate, potassium phosphate, citric acid, tartaric acid, sodium hydrogen carbonate, oxalic acid, and acetic acid, when monodispersed hematite particles were prepared by forced hydrolysis from aqueous ferric solutions, were determined by measuring the size and shape of the particles by transmission electron microscope and scanning electron microscope. The basic shapes of particles prepared from 0.02M of ferric chloride, after two days incubation at $100\circ{C}$ were spherical and rounded-cubic, but the effects of additives and their concentrations on the shapes, sizes, compositions were significant. Among the additives used, sodium phosphate, potassium phosphate, citric acid and tartaric acid had induced the change of particles, but retarded the growth of hematite as their concentrations were increased. Cubic-like particles were obtained at $1\times 10^{-4}$M solution fo tartaric acid. Oxalic acid and sodium hydrogen carbonate changed the shape of particles to be spherical but did not delay the growth of hematite, while acetic acid increased the polydispersity in size though its growth was not retarded. In comparison with chloride and nitrate solutions, the variation of the morphology of particles in chloride solutions may be due to the adsorption of the additives in the stage of phase transformation of β-FeOOH → α-$Fe_2O_3$.

서지기타정보

서지기타정보
청구기호 {MCE 8823
형태사항 ix, 66 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Jin-Seong Lee
지도교수의 한글표기 : 김종득
지도교수의 영문표기 : Jong-Duk Kim
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 57-61
주제 Particles.
화학 공정. --과학기술용어시소러스
입자. --과학기술용어시소러스
Chemical processes.
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