239232

Calcium hydroxide

ACS reagent, ≥95.0%

• Fórmula lineal: Ca(OH)₂
• Número de CAS: 1305-62-0
• Peso molecular: 74.09
• Número CE: 215-137-3
• Número MDL: MFCD00010901
• Código UNSPSC: 12352305
• ID de la sustancia en PubChem: 329752521
• NACRES: NB.24

Propiedades

• grado: ACS reagent
• Ensayo: ≥95.0%
• Formulario: powder
• impurezas: ≤0.03% insol. in HCl; ≤0.1% S compounds; ≤3.0% calcium carbonate
• pH: 12.4-12.6 (20 °C)
• densidad: 2.24 g/mL at 25 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤0.03%
• trazas de catión: Fe: ≤0.05%; K: ≤0.05%; Mg: ≤0.5%; Na: ≤0.05%; Sr: ≤0.05%; heavy metals: ≤0.003% (by ICP)
• cadena SMILES: O[Ca]O
• InChI: 1S/Ca.2H2O/h;2*1H2/q+2;;/p-2
• Clave InChI: AXCZMVOFGPJBDE-UHFFFAOYSA-L

Descripción

Descripción general

Calcium hydroxide is commonly used in wastewater treatment plants (WWTPs) to adjust pH. Calcium hydroxide has numerous applications due to its strong basic characteristics. Uses include flocculants in water and sewage treatment, a whitewash ingredient, soil improvement, as a lye substitute in non-lye hair relaxers, and in the liming industry to neutralize the acid.

Aplicación

Calcium hydroxide can be used:

• In the pretreatment of technical lignin during the pyrolysis in a fluidized bed reactor to overcome the agglomeration to produce phenolic-rich bio-oil.
• As a catalyst in the pyrolysis of pinewood in a fixed bed reactor.

Información de seguridad

• Pictogramas: GHS05,GHS07
• Palabra de señalización: Danger
• Frases de peligro: H315,H318,H335
• Consejos de prudencia: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Clasificaciones de peligro: Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable