1) pH value in water body
水质pH值
1.
[Conclusion] In the two chemical factors with significant difference,the impact of pH value in water body on the distribution of Ceratopteris thalictroides was greater.
[结果]所测22个化学因子变异系数都有较大变化,但只有pH值和电导率在两种水体(type A和type B)中有显著性差异,相关分析显示二者呈正相关,但多重比较分析表明水质pH值的显著性差异高于电导率。
2) water quality-determination of ph
水质-ph值测定
3) palaeoacidity indicator
地质pH值
5) pH value of brine
卤水pH值
1.
By identifying the influence of pH value of brine on salt making equipm ent,reaction velocity of brine,sedimentation velocity as well as quality of puri fied brine,this paper puts forward the measures and methods of adjusting the pH value of brine.
通过认识卤水pH值对制盐设备的影响及对卤水反应速度、沉降速度及精卤质量的影响,提出调节控制卤水pH值的措施及方法。
6) pH of cloud
云水pH值
补充资料:pH值
分子式:
CAS号:
性质:H30+浓度的负对数称为pH值。即pH=-1g[H3O+]。如[H3O+]=1.0×10-7mol/dm3,pH=7.00。水溶液的pH的范围在0~14之间,pH为1~7呈酸性,pH为7~14呈碱性。pH=7呈中性。
CAS号:
性质:H30+浓度的负对数称为pH值。即pH=-1g[H3O+]。如[H3O+]=1.0×10-7mol/dm3,pH=7.00。水溶液的pH的范围在0~14之间,pH为1~7呈酸性,pH为7~14呈碱性。pH=7呈中性。
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参考词条