HDTMPA
己二胺四甲叉膦酸 HDTMPA
HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA
别名：1,6-己二胺四甲叉膦酸; 己二胺四亚甲基膦酸 CAS No. 23605-74-5
分子式 C10H28N2O12P4 相对分子质量：492.3
结构式
一、产品性能：常温下HDTMPA为白色结晶性粉末,微溶于水,其溶解度在室温下小于5%。
HDTMPA能抑制各种水垢（如碳酸钙垢、硫酸钙垢、硫酸钡垢和氧化铁垢等）的生成，但在水处理中主要用来阻抑硫酸钙和硫酸钡垢。在各种有机磷酸中，其阻硫酸钙垢的性能最好，不仅阻垢率高，有效时间长，因此特别适用于油田的挤压处理中。HDTMPA也可用于锅炉水处理中。
二、质量指标
项 目 指 标
外 观 白色结晶性粉末
活性组分（以HDTPMA-计）% ≥ 97.0
氯化物 （以Cl-计）% ≤ 0.5
PH(1%水溶液) < 2.0
Fe（以Fe3+计）含量ppm ≤ 35
三、包装与贮存HDTMPA用复合塑编袋包装或符合出口环保要求的包装，HDTMPA每袋净重25kg，也可根据用户要求确定。贮存于阴凉干燥处，贮存期十二个月。
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CAS No. 23605-74-5 Molecular Formula: C10H28N2O12P4 Molecular Weight: 492.3 Structural Formula:
Properties:HMDTMPA is a white crystal powder at room temperature, slightly soluble in water, with solubility less than 5%. HMDTMPA can inhibit most scale formation such as calcium carbonate, calcium sulfate, barium sulfate and ferric oxide. As water treatment chemicals, HMDTMPA is used as scale inhibitors for calcium sulfate and barium sulfate, for calcium sulfate in particular. It has high scale inhibition rate and can last for long effective time. HMDTMPA can be used for crush treatment in oilfield and for water treatment in boiler.
Specification:items
index
Appearance
White crystal powder
Active component (as HDTPMA) %
98.0 min
chloride (Cl)%
0.5 max
PH value (1% water solution)
2.0 max
Fe3+，mg/L
35 max
Package and Storage:25kg inner liner polyethylene (PE) bag, or conformed to export environmental requirement, or confirmed by clients. Storage for twelve month in room shady and dry place.