1.02047

Calcium hydroxide

for analysis EMSURE^® ACS,Reag. Ph Eur

• Synonym(s): Calcium hydroxide
• Linear Formula: Ca(OH)₂
• CAS Number: 1305-62-0
• Molecular Weight: 74.09
• MDL number: MFCD00010901
• UNSPSC Code: 12352305
• EC Index Number: 215-137-3
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 300
• agency: reag. Ph. Eur.
• product line: EMSURE^®
• assay: ≥96.0% (acidimetric)
• form: solid
• potency: 7340 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.03% Substances insoluble in hydrochloric acid
• 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
• anion traces: carbonate (CO₃^2-): ≤3.0% (as CaCO₃); chloride (Cl^-): ≤0.005%; sulfur compounds (as SO₄^2-): ≤0.1%
• cation traces: Fe: ≤0.05%; K: ≤0.05%; Mg: ≤0.5%; Na: ≤0.05%; Sr: ≤0.05%; heavy metals (as Pb): ≤0.003%
• storage temp.: 2-30°C
• InChI: 1S/Ca.2H2O/h;2*1H2/q+2;;/p-2
• InChI key: AXCZMVOFGPJBDE-UHFFFAOYSA-L

Description

application

• Synthesis and utilization of polyol-modified high specific surface area Ca(OH)(2): This research explores the enhanced properties of calcium hydroxide when modified for high surface area applications, crucial for environmental and material science applications, particularly in pollution control and advanced material composites. (Yan et al., 2024).

Linkage

Replaces: CX0220; CX0220-1

Analysis Note

Assay (acidimetric): ≥ 96.0 %
Substances insoluble in hydrochloric acid: ≤ 0.03 %
Carbonate (as CaCO₃): ≤ 3.0 %
Chloride (Cl): ≤ 0.005 %
Sulfur compounds (as SO₄): ≤ 0.1 %
Heavy metals (as Pb): ≤ 0.003 %
Fe (Iron): ≤ 0.05 %
K (Potassium): ≤ 0.05 %
Mg (Magnesium): ≤ 0.5 %
Na (Sodium): ≤ 0.05 %
Sr (Strontium): ≤ 0.05 %
Conforms ACS, Reag. Ph. Eur.

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H315,H318,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable