Abstract:
The water hardness indicator has been studied.The experimental results reveal that it is very easy and quick to determinate the hardness of water sample with the water hardness indicator and colourimetric card.The hardness range is 0 ～ 0.05 mmol /L.The indicator has been used in steam boiler' s water supply and circulating cooling water systems including making of soft water,demineralized water and pure water.Good results have been achieved.
Key words:
hardness indicator,
colourimetric card,
determination of hardness
摘要：
研究配制了复合硬度指示剂。试验证明，用此指示剂及比色卡可简单迅速测定在0～0。05mmolL范围内水样的硬度。经使用效果良好，有推广使用的可能。
关键词:
复合硬度指示剂,
比色卡,
硬度的测定
CLC Number:
YANG Hongdong, ZHANG Minling. Determination of water hardness with a complex water hardness indicator[J]. INDUSTRIAL WATER TREATMENT, 2002, 22(12): 43-44.
杨洪东, 张敏玲. 水质硬度测定用复合硬度指示剂的研究应用[J]. 工业水处理, 2002, 22(12): 43-44.