产品说明
一般描述
The di-sodium hydrogen phosphate/sodium hydroxide buffer solution is gravimetrically prepared at a registered calibration laboratory with high-quality reagents and water. Its pH value of 12.00 at 25℃ is measured using a combined glass electrode following a 5-point calibration method. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The buffer pH strongly depends on the temperature and therefore a constant temperature must be maintained during its use.
应用
The buffer is used as a standard to calibrate pH measuring instruments or pH electrodes and as a control to measure the pH of other solutions.
特点和优势
法律信息
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
Titripac is a registered trademark of Merck KGaA, Darmstadt, Germany
产品性质
质量水平 | 300 |
等级 | certified reference material |
产品线 | Certipur® |
pH值(酸碱度) | 12.0 (25 ℃ in H2O) |
密度 | 1.00 g/cm3 at 20 ℃ |
application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
格式 | mixture |
储存温度 | 15-25℃ |
安全信息
储存分类代码 | 12 - Non Combustible Liquids |
WGK | nwg |
闪点(F) | Not applicable |
闪点(C) | Not applicable |