聚合氯化铝检测方法(DOC)
东丰二中
本文介绍了聚合氯化铝的检验指标，包括氧化铝、盐基度、PH值、铅、铬、砷、镉、汞和水不溶物等。在液体和固体两种形态下，优等品和一等品的检验标准略有不同。检测方法采用聚合氯化铝国标，其中氧化铝含量的测定方法涉及加酸解聚、络合、滴定等步骤，并使用了多种试剂和材料。lob
sodalime聚合氯化铝的检验指标包括氧化铝、盐基度、PH值、铅、铬、砷、镉、汞和水不溶物等。其中，液体和固体的检验标准略有不同，优等品和一等品的标准也有所区别。
检测方法采用聚合氯化铝国标，其中氧化铝含量的测定方法包括加酸解聚、络合、滴定等步骤。具体来说，首先在试样中加酸使其解聚，然后加入过量的乙二胺四乙配二钠溶液，使其与铝及其他金属离络合。接着用氯化锌标准滴定溶液滴定剩余的乙二胺四乙酸二钠，再用氟化钾溶液解析出络合铝离子，最后用氯化锌标准滴定溶液滴定解析出的乙二胺四乙酸二钠。
在氧化铝含量的测定过程中，需要使用多种试剂和材料，包括硝酸、乙二胺四乙酸二钠、乙酸钠缓冲溶液、氟化钾、硝酸银和氯化锌等。其中，硝酸银溶液用于检测氯离子的含量，氟化钾溶液则用于解析出络合铝离子。五菱牌lzw6371
To prepare the n。500g of potassium fluoride is XXX 200mL of distilled water free of carbon xide。XXX 1000mL。2mL of XXX (4.3.2.3) is added and the XXX red color with either XXX (4.3.2.3) or XXX (4.3.2.1)。After filtering out any insoluble material。XXX。
For the analysis。approximately 1.8g of liquid sample or 0.6g of solid sample is XXX 0.0002g。It is then transferred to a 250mL conical flask with 20-30mL of water。25mL of XXX is added with a pipette and the surface dish XXX for 10 minutes and then cooled to room temperature。25mL of potassium fluoride XXX (4.3.2.4) is added and shaken。5 XXX (4.3.2.3) are added and the XXX (4.3.2.2) until the XXX red。which is the endpoint。A blank test is also performed using distilled water free of carbon xide。
un38.3The percentage of salt base degree (x2) is calculated using the following formula:
x2= (V-V)c×169.9/mx1(2)
where V is the volume of the blank test XXX in mL。V is the volume of the sample XXX in mL。c is the actual XXX in mol/L。m is the mass of the sample in g。and x1 is the XXX 4.2 in percentage。
五章一簿
For the n of water insoluble content。approximately 10g of liquid sample or 3g of solid sample is weighed accurately to 0.01g。It is placed in a 1000mL beaker and 500mL of water is added。The sample is XXX as much as possible。Then。using a constant weight medium-speed quantitative filter paper in a Büchner funnel。the filter paper is used to filter out the insoluble material。The filter paper with the residue is dried in an electric constant temperature drying oven at 100-105ºC until a constant weight is reached。
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