用穆斯堡尔效应研究磷酸—铁锈反应产物

中国腐蚀与防护学报

1988, Vol. 8

Issue (4): 274-280

研究报告

本期目录 | 过刊浏览

用穆斯堡尔效应研究磷酸—铁锈反应产物

陈俊明;王戈

中国科学院上海冶金研究所;中国科学院上海冶金研究所

A STUDY OF THE REACTION PRODUCTS OF PHOSPHORIC ACID—RUST REACTION BY MOSSBUAER SPECTROSCOPY

Chen Junming and Wang Ge (Shanohai Institute of Metallurgy Academia Sinica)

全文: PDF(573 KB)

摘要: 用穆斯堡尔效应研究了α—Fe和铁锈的各主要组份(α-,γ-,δ-,am-FeOOH;α-,γ-Fe_2O_3和F_3O_4)与商品磷酸系锈控涂料主要活性组份—20％磷酸酒精液的作用,结果表明除Fe_3O_4的作用产物系三价铁无定形磷酸盐外。其余产物都为酸式磷酸盐FeH_3(PO_4)_2·2 1/2H_2O。另外,在Fe_3O_4和在α-Fe的反应产物中还存在多种高自旋二价铁的产物。环境中的NaCl及H_2O会不同程度地改变上述反应产物的结构,而O_2对二价铁磷酸盐变成三价铁磷酸盐是必须的。作者用形核长大和高聚物聚沉两种不同沉淀机制对以上结果作了解释。

Abstract：The reactions of two typical commercial phosphoric acid series rust control coatings with both α-Fe and rust (α-,γ-,δ-,am-FeOOH; α-, γ-Fe_2O_3 and Fe_3O_4)have been studied by Mossbauer spectroscopy. Since the active ingredient of the coatings is phosphoric acid, a 20％ H_3PO_3 alcoholic solution is adopted in place of the real rust control coatings. It is shown that, with the exception of the product for Fe_3O_4 being Fe(Ⅲ) amorphous phosphate, those for α-Fe and almost for all of the rest iron oxides and iron oxyhydroxides are iron acid phosphate FeH_3(PO_4)_2·2 1/2 H_2O. In addition to Fe (Ⅲ) products, various highspin Fe(Ⅱ) products have also been found in the products for α-Fe and Fe_3O_4. The process and the structure of the reaction products have been influenced by salt,water etc. from the environment. For the transfortion of Fe(Ⅱ) phosphate to Fe(Ⅲ) phosphate, sufficient O_2 is required. The results obtained is explained by two different precipitation mechanisms, namely, nucleating growth and high polymers aggregation.

收稿日期: 1988-08-25

基金资助:中国科学院科学基金资助课题

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	陈俊明
	王戈
44.8K

引用本文:

陈俊明;王戈. 用穆斯堡尔效应研究磷酸—铁锈反应产物[J]. 中国腐蚀与防护学报, 1988, 8(4): 274-280.
. A STUDY OF THE REACTION PRODUCTS OF PHOSPHORIC ACID—RUST REACTION BY MOSSBUAER SPECTROSCOPY. J Chin Soc Corr Pro, 1988, 8(4): 274-280.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1988/V8/I4/274

[1] 陈俊明;俞方华,化学通报,12,19(1982)
[2] Kobayashi, E., J.Ind. Chem.(Japan), 73, 1797(1970)
[3] Carter, S.R.; Hartshorne, N. H., J. Chem Soc., 123, 2223 (1923)
[4] Carter, S.R.; Hartshorne, N. H., J. Chem Soc., 363 (1926)
[5] Mattievich, E.; Danon, J., J. Inorg. NaCl. Chem., 39, 569(1976)
[6] Champion, A.R.; Vaughan, R.W.; Drickamer, H. G., J. Chem. Phys., 41, 2583 (1967)
[7] Berry, F. J., J. Chem.Soc. Dalton Trans., 11, 1736(1979)
[8] Meisel, W.; Guttmann, H.J.; Gutlich, P., Corr. Sci., 23, 1373(1983)
[9] 王戈;陈俊明,中国腐蚀与防护学报,5(4) ,258(1985)
[10] 陈发明;王才虎;王戈,金属学报,21(2) ,B66(1985)
[11] 黄建顺;陈俊明;王戈,科技通讯,(4) ,35(1987) ;应用科学学报,6(4) ,329(1988)
[12] Diggle, J.W., in Oxide and Oxide Films, ed. Diggle, J.W., Vol. 2, Marcel-Dekker, New York(1973) P. 281
[13] #12
[14] 小林悦郎,工业化学杂志,73,1797(1970)

No related articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed