但是,在酸性环境的抗腐蚀能力要取决于酸的种类,PEEK对浓硫酸,浓硝酸,氯化氢,溴化氢和其他矿物酸(mineral acids)的抗腐蚀能力较差.在这些酸浓度很低的情况下,PEEK在短期的应用表现还是可以接受的.
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矿物酸度和碱度 mineral acidity and alkalinity
总矿物酸度 total mineral acidity
游离矿物酸酸度 free-mineral acidity
硅酸盐矿物 silicate minerals ; Silicates ; silicate mineral siliceous ; aluminosilicte
氨基酸矿物质微量元素 Amino Acid
硫酸盐矿物 [矿物] sulfate mineral
磷酸盐矿物 [矿物] phosphate mineral
矿物质酸性土 mineral acid soil
碳酸盐矿物 [矿物] carbonate mineral
碳氢化合物应用,不会腐蚀阀门金属部件的矿物酸和盐溶液。
Hydrocarbon service, mineral acids and salt solutions that are not corrosive to the metallic parts of the valve.
缺点:不耐酸尤其不耐矿物酸,不耐紫外线,无自熄性,不能近火。
Faults: no acid especially not resistant to mineral acid, not ultraviolet radiation resistant, no self-extinguishing RTV silicone compound, not near fire.
如果说有的话,也只有很少的矿物质、维生素、氨基酸和必须脂肪是不用于提供能量的。
There are few, if any, minerals, vitamins, amino acids and essential fats that are not used in creating energy.
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