| Description | |
|---|---|
| Catalogue Number | 102047 |
| Replaces | CX0220; CX0220-1 |
| Description | Calcium hydroxide |
| Product Information | |
|---|---|
| CAS number | 1305-62-0 |
| EC number | 215-137-3 |
| Grade | ACS,Reag. Ph Eur |
| Hill Formula | H₂CaO₂ |
| Chemical formula | Ca(OH)₂ |
| Molar Mass | 74.09 g/mol |
| HS Code | 2825 90 19 |
| Applications | |
|---|---|
| Application | Calcium hydroxide for analysis EMSURE® ACS,Reag. Ph Eur. CAS 1305-62-0, chemical formula Ca(OH)₂. |
| Physicochemical Information | |
|---|---|
| Density | 2.24 g/cm3 (20 °C) |
| Melting Point | 550 °C (decomposition) |
| pH value | 12.6 (H₂O, 20 °C) (saturated solution) |
| Bulk density | 400 kg/m3 |
| Solubility | 1.7 g/l |
| Toxicological Information | |
|---|---|
| LD 50 oral | LD50 Rat 7340 mg/kg |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |  |
| Hazard Statement(s) | H315: Causes skin irritation. H318: Causes serious eye damage. H335: May cause respiratory irritation. |
| Precautionary Statement(s) | P260: Do not breathe dust. P280: Wear eye protection. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P313: Get medical advice/ attention. |
| RTECS | EW2800000 |
| Storage class | 10 - 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). |
| Safety Information | |
|---|---|
| Hazard Symbols | Irritant |
| Categories of danger | irritant |
| R Phrase | R 37/38-41 Irritating to respiratory system and skin.Risk of serious damage to eyes. |
| S Phrase | S 22-26-39 Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection. |
| Storage and Shipping Information | |
|---|---|
| Storage | Store at +5°C to +30°C. |
| Specifications | |
|---|---|
| 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. | |