1)  PHP/PostgreSQL
PHP/PostgreSQL
1.
Design of the assembled and checked information system of a plane based on PHP/PostgreSQL;
基于PHP/PostgreSQL的飞机装配检验信息系统的设计
2)  pH
pH
1.
In Situ Measurement of Chloride Concentration and pH Distribution in the Crevice during the Crevice Corrosion of Copper Electronic Board;
铜电路板缝腐蚀过程缝隙中pH、Cl-浓度分布的测量
2.
ISO10390:2005 Soil Quality-Determination of pH;
ISO10390:2005土壤质量pH的测定
3.
Productions Analyses and pH Dynamics During Rice Straw Degradation by the Lignocellulose Degradation Bacteria System WSC-6;
木质纤维素分解菌复合系WSC-6分解稻秆过程中的产物及pH动态
3)  soil pH
pH
1.
Soil pHs in the tea gardens in Jiangsu, Zhejiang, and Anhui provinces and changes of soil pH in the past decade;
苏、浙、皖茶区茶园土壤pH状况及近十年来的变化
4)  Lead(Ⅱ)
Ph(Ⅱ)
5)  pH value
pH
1.
The investigation and significance by examining pH value and smear of dejecta for intestinal flora maladjustment;
粪便pH和涂片检查肠道菌群失调的研究及意义
2.
Effects of Temperature and pH value on the growth of Laribacter hongkongensis GRA1 strain;
温度和pH对香港海鸥型菌GRA1株生长的影响
3.
Influence of feedwater conductivity and pH value in RO systems;
反渗透系统给水电导率与pH的系统影响
6)  pH value
pH值
1.
Influence of pH value on rheological performance of high-density drilling fluid;
pH值对高密度钻井液流变性能的影响
2.
Effects of pH Value on Electroless Ni-P Plating on Magnesium Alloys;
pH值对镁合金化学镀Ni-P合金的影响
3.
Fast detection and control of pH value during fabric manufacturing;
生产中织物pH值快速测定与控制方法
参考词条
补充资料:PHP
分子式:C8H5KO4
分子量:204.23
CAS号:877-24-7

性质:白色结晶。相对密度1.636。约溶于12份冷水、3份沸水;微溶于乙醇。0.05M水溶液在25℃时的pH=4.005。在295-300℃分解。

制备方法:取660g苛性钾(85%),溶于1L水中。加热,搅拌下分次加入邻苯二甲酸酐1480g,加热反应0.5h,过滤。将滤液浓缩至饱和,放冷至室温,吸滤出结晶,干燥,得成品。

用途:用作pH测定的缓冲剂、分析基准物质。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。