科技视界
科技視界
과기시계
Science&Technology Vision
2015年
30期
270,269
,共2页
高锰酸盐指数%反应酸度%加热时间
高錳痠鹽指數%反應痠度%加熱時間
고맹산염지수%반응산도%가열시간
Determination of permanganate Index%the Reaction acidity%Heating time
高锰酸盐指数值得测定影响因素较多,本文从反应酸度和加热时间两个方面进行研究. 结果表明:相同加热时间内,高锰酸盐指数测定值随反应酸度的增大而增大;同一酸度情况下,高锰酸盐指数测定值随加热时间的延长而加大.基于这两个前提,在增加酸度、缩短加热时间的条件下进行高锰酸盐指数的测定,结果表明:加入5ml浓硫酸,水浴加热15分钟,测得的值和国标GB/T11892-1989酸性法测定结果无明显差异.
高錳痠鹽指數值得測定影響因素較多,本文從反應痠度和加熱時間兩箇方麵進行研究. 結果錶明:相同加熱時間內,高錳痠鹽指數測定值隨反應痠度的增大而增大;同一痠度情況下,高錳痠鹽指數測定值隨加熱時間的延長而加大.基于這兩箇前提,在增加痠度、縮短加熱時間的條件下進行高錳痠鹽指數的測定,結果錶明:加入5ml濃硫痠,水浴加熱15分鐘,測得的值和國標GB/T11892-1989痠性法測定結果無明顯差異.
고맹산염지수치득측정영향인소교다,본문종반응산도화가열시간량개방면진행연구. 결과표명:상동가열시간내,고맹산염지수측정치수반응산도적증대이증대;동일산도정황하,고맹산염지수측정치수가열시간적연장이가대.기우저량개전제,재증가산도、축단가열시간적조건하진행고맹산염지수적측정,결과표명:가입5ml농류산,수욕가열15분종,측득적치화국표GB/T11892-1989산성법측정결과무명현차이.
Many factors can influence Determination of permanganate Index,this Paper studied on the reaction acidity and heating time,the result shows that determination of permanganate Index increase along with the increase of the reaction acidity within the same heating time, determination of permanganate Index increase with the extension of heating time within the same acidity condition. Based on the two preconditions,in the condition of increasing the acidity and shorten the heating time,the result of determination of permanganate Index shows that, adding 5ml concentrated sulfuric acid with 15 minutes water-bath heating, there is no obvious difference between the measuring value and the national standard GB/T11892-1989 determination results acid method.
