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Specifications:
| Application | Organic Synthesis | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | Ca(OH)₂ |
GPR RECTAPUR® Analytical Reagent Grade for Laboratory and Industrial Use
VWR® Calcium Hydroxide is a high-purity, general-purpose reagent (GPR) conforming to RECTAPUR® quality standards, with a minimum assay of 96%. This analytical-grade compound is suitable for a wide range of applications including acid neutralization, water treatment, analytical titrations, and chemical synthesis. Its low impurity profile ensures reliability in both industrial and academic laboratories.
Key Features
- ≥96% Assay at Filling – Ensures consistent chemical quality
- Analytical-Grade (GPR RECTAPUR®) – Ideal for titration, pH adjustment, and reagent prep
- Low Impurity Levels – Compliant with trace limits on heavy metals, carbonates, and sulfates
- Stable Solid Form – Easy to handle and store
- Pharmaceutical & Chemical Industry Compatible – Used in standard testing and formulation processes
Specifications
| Property | Value |
|---|---|
| Chemical Name | Calcium Hydroxide |
| CAS Number | 1305-62-0 |
| Molecular Formula | Ca(OH)₂ |
| Molar Mass | 74.09 g/mol |
| Melting Point | 550 °C |
| Density | 2.24 g/cm³ (20 °C) |
| Assay (at filling) | ≥96% |
| Heavy Metals (as Pb) | ≤50 ppm |
| Insolubility in HCl | ≤0.1% |
| Non-precipitated (as SO₄²⁻) | ≤2.5% |
| Chloride (Cl⁻) | ≤100 ppm |
| Carbonate (as CaCO₃) | ≤3% |
| Sulfate (SO₄²⁻) | ≤0.2% |
| Iron (Fe) | ≤0.05% |
| Hazard Classification | GHS05, GHS07 |
| ADR Classification | Class 8, PG III |
| Storage Temperature | Ambient |
Applications
- Acid Neutralization – For laboratory or industrial acid waste treatment
- Water Treatment – For hardness removal and pH adjustment
- Chemical Synthesis – Precursor or reactant in various formulations
- Analytical Reagent – Used in titration or gravimetric determinations
- Educational Labs – Demonstrations of base properties and reactivity
Ordering Information
| Catalog Number | Pack Size | Packaging Type |
|---|---|---|
| 22355.298 | 1 kg | Plastic bottle (solids) |
| 22355.367 | 5 kg | Plastic bucket (solids) |
VWR® Calcium Hydroxide, ≥96%, GPR RECTAPUR® is a high-purity, multipurpose reagent suitable for analytical, industrial, and educational use. Its dependable quality and strict impurity limits make it an essential component in titrations, pH regulation, and formulation chemistry.
- Pack Size: 1kg 5kg