Hydrochloric acid 37% ultrapure
| Density: | ~ 1.17 g/cm3 (20°C) |
| HS code: | 28061000 |
| Storage : | Store at +2 °C to +25 °C |
| SDS | available |
| R phrase: | R 34-37 |
| S phrase: | S 26-36/37/39-45 |
| Odour: | pungent |
| Form: | liquid |
| Color: | colourless |
| Solubility in water: | (20°C) soluble |
| Vapour pressure: | 190 hPa (20 °C) |
| Viscosity dynamical: | 2.3 mPa*s (15 °C) |
| Assay | ~ | 37.0 | % |
| Description | Conforms | ||
| Identification | Conforms | ||
| Appearance of solution | Conforms | ||
| Bromide | Conforms | ||
| Iodide | Conforms | ||
| Free chlorine | Conforms | ||
| Free bromine | Conforms | ||
| Sulfate | ≤ | 0.0005 | % |
| Sulfite | ≤ | 0.001 | % |
| Heavy metals | ≤ | 0.0001 | % |
| Arsenic | ≤ | 0.0001 | % |
| Calcium | ≤ | 0.001 | % |
| Iron | ≤ | 0.001 | % |
| Mercury | ≤ | 0.00004 | % |
| Residual on ignition | ≤ | 0.002 | % |
| Evaporation residue | ≤ | 0.005 | % |
Hydrochloric Acid 37% Ultrapure for HPLC is a high‑purity, analytical‑grade strong acid specifically prepared for use in pharmaceutical and analytical laboratories for pH adjustment, mobile phase preparation, and stabilizing chromatographic separations.
🏭⚗️ Production
Produced from ultra‑pure hydrogen chloride gas dissolved in ultrapure water under rigorously controlled conditions to minimize trace metals and organic contaminants. Standardized for concentration, acidity, and chemical stability. Supplied in chemically resistant, tightly sealed containers to prevent contamination, moisture uptake, or degradation.
🔬 Properties
A clear, colorless to slightly yellow liquid with strong acidic properties. Highly corrosive to metals and tissues, with excellent solubility and low UV absorbance suitable for HPLC. Stable under normal storage conditions but reacts violently with strong bases, oxidizers, and certain organic materials. Store in a cool, dry, well-ventilated area in chemically resistant containers.
🧪 Applications
Used in pharmaceutical and analytical laboratories for preparing HPLC mobile phases, adjusting pH in aqueous systems, and improving chromatographic reproducibility. Commonly applied in reversed-phase and ion-exchange separations where strong acidification is required. Solutions and equipment should be handled carefully to maintain analytical-grade purity.
⚠️ Safety
Extremely corrosive; can cause severe burns to skin and eyes, and respiratory damage if inhaled. Use in a well-ventilated area with appropriate protective equipment including gloves, goggles, and lab coat. Avoid ingestion and contact with metals, bases, and oxidizers. Spills must be neutralized and cleaned up according to institutional and environmental safety guidelines. Store in a tightly closed, chemically resistant container in a cool, dry, well-ventilated area away from incompatible substances.
