NITRIC-ACID AIR-DIFFUSION COEFFICIENT - EXPERIMENTAL-DETERMINATION USING A DIFFUSION CELL

被引：4
|
作者：
DEANDRADE, JB [1 ]
DEARAGAO, NM [1 ]
ARAUJO, FRJ [1 ]
机构：
[1] UFBA,INST QUIM,BR-40210 SALVADOR,BA,BRAZIL
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1992年 / 49卷 / 1-2期
关键词：
D O I：
10.1080/03067319208028130
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Trace gaseous nitric acid was generated using a diffusion cell. The determination was made by collection in cellulose filters coated with K2CO3 and measuring the concentration by ion chromatography. The measured HNO3-air diffusion coefficient was 0.0404+/-0.0010 cm2/s (n = 21) for T = 298.15 K and P = 1 atm. Their dependence with the temperature, over the range from 297.15 K to 318.15 K, could be expressed by D = 10(-4.7773).T1.366 (R2 = 0.9467).
引用
收藏
页码：103 / 109
页数：7
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