不含亚硝酸盐的商用切削液中的N-亚硝基二乙醇胺。

N-nitrosodiethanolamine in commercial cutting fluids without nitrites.

作者信息

Järvholm B, Zingmark P A, Osterdahl B G

机构信息

Department of Occupational Medicine, Sahlgren Hospital, Gothenburg, Sweden.

出版信息

Ann Occup Hyg. 1991 Dec;35(6):659-63. doi: 10.1093/annhyg/35.6.659.

DOI:10.1093/annhyg/35.6.659

PMID:1768014

Abstract

We have determined the concentration of N-nitrosodiethanolamine (NDELA) in 11 commercial 'nitrite-free' cutting fluids in Sweden in 1989. The concentrations in diluted fluids after use were 0.02-0.51 ppm. The concentrates contained 0.02-17 ppm. There was no correlation between the occurrence of formaldehyde-releasers, boramines or bacteria and the concentrations of NDELA. An additive in one fluid contained 140 ppm NDELA. The concentration of nitrite in the diluted fluids after use varied between 0 and 40 ppm. There was a correlation between the concentration of nitrite and NDELA. It is concluded that the concentration of NDELA can be low if the suppliers check their additives with regard to NDELA and the users check the concentration of nitrite.

摘要

1989年我们测定了瑞典11种市售“无亚硝酸盐”切削液中N-亚硝基二乙醇胺（NDELA）的浓度。使用后稀释液中的浓度为0.02 - 0.51 ppm。浓缩液中含有0.02 - 17 ppm。甲醛释放剂、硼胺或细菌的存在与NDELA的浓度之间没有相关性。一种切削液中的一种添加剂含有140 ppm的NDELA。使用后稀释液中亚硝酸盐的浓度在0至40 ppm之间变化。亚硝酸盐浓度与NDELA之间存在相关性。得出的结论是，如果供应商检查其添加剂中的NDELA含量且用户检查亚硝酸盐浓度，NDELA的浓度可能会很低。