等级
analytical standard
质量水平
Agency
complies with DIN 19266
效能
7340 mg/kg LD50, oral (Rat)
pH值（酸碱度）
12.6 (20 °C in H2O, saturated solution)
mp
550 °C (decomposition)
溶解性
1.7 g/L
密度
2.24 g/cm3 at 20 °C
堆积密度
400 kg/m3
应用
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
格式
mixture
储存温度
15-25°C
InChI
1S/Ca.2H2O/h;2*1H2/q+2;;/p-2
InChI key
AXCZMVOFGPJBDE-UHFFFAOYSA-L
一般描述
The pH buffer standards are measured and qualified using differential potentiometry with two platinum hydrogen electrodes. This method allows the comparison of the reference buffers to the corresponding primary reference materials by PTB (Physical Technical Institute, Germany) and NIST (National Institute of Standards and Technology, USA). Uncertainty data and traceability are documented in a comprehensive, batch-specific Certificate of Analysis.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
应用
For the preparation of DIN 19266 pH standard buffer solutions.
Calcium hydroxide (calcium dihydroxide or Ca(OH)2) is a reference buffer solution used to calibrate pH electrodes and pH instruments.
Calcium hydroxide (calcium dihydroxide or Ca(OH)2) is a reference buffer solution used to calibrate pH electrodes and pH instruments.
分析说明
pH-value (25°C): 12.43 - 12.47
推荐
产品编号
说明
价格
警示用语：
Danger
危险分类
Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
13 - Non Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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