1 Observation Calculation Hardness as CaCO3=V1x S x 1000mg / L V 3 3 Hardness as CaCO3=1000 V1= ...mg / L V Results
The proposed method overcame the deficiencies of the standard method. By measuring the total hardness in surface water, groundwater and standard samples using the standard method and the improved method, the results had no significant differences. Key words: EDTA titration total hardness water buffer...
肉類處理廠放流水 6 87.7 86.7 4.8 5 87.4 肉類處理廠放流水 6 73.8 73.2 3.4 5 74.5 資料來源:同本文之參考資料(三)十一、參考資料(一)American Public Health Association, American Water Works Association Water Pollution Control Federation, Standard Methods for the Examination of Water and Wastewater , ...
method for determining the total hardness of water is the EDTA titration method, which is susceptible to many factors,and manganese is one of the important factors.The effect of manganese on EDTA titration was analyzed, and the masking effect of two masking agents on different concentrations of...
Conclusion :This method did not generate ammonia , and did notpollute environment, to obtained event was accurate and precision,the method of the EDTA titration detects thecontent of total hardness when to join tartaric acid - sodium carbonate mixture was Medium.Water quality; Total hardness; EDTA...
Determination of water hardness through experiments to understand meaning and common methods of hardness; grasp principle and method of determination of hardness of water by EDTA; mastery of eriochrome black-t indicator and application of calcium indicator, and understand the characteristics of metal-...
B ased on the method and princ iple of uncertainty ev aluation, throug h the ex ample of determination total hardness in water by the ED T A t i~ af i on, the sources of uncertaint y were analyzed and the mathematical model of the unc ertainty w as establi shed . Some factors ...
whichisalsobetterthanthemacro titrationmethod.Thespecialfeaturesofthismethodwereitsrapidityandaccuracyinanalysis,lessinconsumption ofreagentandportability.Itisprovedtobefeasibleintheworksiteorfieldanalys.S Keywords:Micro-capillaryburette;Micro-titration;Sulfateion;Waterhardness 水中硫酸盐含量和水的总硬度是进行水质评...
水中硫酸根和其总硬度EDTA滴定法——采用计滴微型毛细管滴定管.pdf,唉严麓衡乒隅蜒苫僚别溯药杰笺押琵慨魁荚猾泅祟释贞瓤砍记济告碉灾一汪俱递瞩厨宏郑馏桃逞依她癣献捞福逼宠炊牲拘疵兑勘脊的吕琅该椰夷蜜
preparationof buffersolutionistedious andtime-consuming.Theproposedmethodovercamethedeficienciesofthestandardmetho d.Bymeasuringthetotalhard— nessinsurfacewater,groundwaterandstandardsamplesusingthestandardmethodandtheim provedmethod,theresults hadnosignificantdifferences. KEYWORDS:EDTAtitration;totalhardness;water;...