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氯化石蠟52公司

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濟源市恒順新材料有限公司

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通信地址:濟源市五龍口鎮北官莊村河南聯創化工院內 

氯化石蠟52酸值檢測方法

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氯化石蠟52酸值檢測方法

發布日期:2017-09-20 00:00 來源:http://www.gpswbz.com 點擊:

氯化石蠟52酸值檢測方法 

1、磨口錐形瓶取樣2—5g; 

2、量筒取95%乙醇,50ml倒入錐形瓶; 3、再滴入3—5滴酚酞試劑; 4、充分搖晃均勻; 

5、滴定管(用移液管移入KOH(氫氧化鉀)溶液) 

6、錐形瓶中的溶液滴至微粉紅色并保證10秒不褪色,在滴定過程中不斷搖晃錐形瓶。 酸值=

質量溶液濃度空白消耗)(試樣消耗11

.56???        試樣質量 2—5g 

現酸值=

試樣質量

)(試樣消耗11

.56025.04.0??? 

比重=實測比重-(50- 實測溫度)×0.00078


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