Iniciar sesión para ver los precios por organización y contrato.
Seleccione un Tamaño
Cambiar Vistas
Acerca de este artículo
Fórmula lineal:
Ca(OH)2
Número CAS:
Peso molecular:
74.09
UNSPSC Code:
12352305
EC Index Number:
215-137-3
NACRES:
NA.24
MDL number:
Servicio técnico
¿Necesita ayuda? Nuestro equipo de científicos experimentados está aquí para ayudarle.
Permítanos ayudarlegrade
analytical standard
Quality Level
agency
complies with DIN 19266
potency
7340 mg/kg LD50, oral (Rat)
pH
12.6 (20 °C in H2O, saturated solution)
mp
550 °C (decomposition)
solubility
1.7 g/L
density
2.24 g/cm3 at 20 °C
bulk density
400 kg/m3
application(s)
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
format
mixture
storage temp.
15-25°C
SMILES string
[Ca+2].[O-H].[O-H]
InChI
1S/Ca.2H2O/h;2*1H2/q+2;;/p-2
InChI key
AXCZMVOFGPJBDE-UHFFFAOYSA-L
General description
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.
Application
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.
Analysis Note
pH-value (25°C): 12.43 - 12.47
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Clase de almacenamiento
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
¿Ya tiene este producto?
Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

