Carbon tetrachloride for UV
| Formula | CCl4 |
| Chemical formula | CCl4 |
| Density | ~ 1.59 g/cm3 (20°c) |
| Molar mass | 153.82 g/mol |
| CAS number | 56-23-5 |
| HS Code | 29031400 |
| EC number | 200-262-8 |
| Storage | Without limitation |
| SDS | available |
| R phrase | R 23/24/25-40-48/23 |
| S phrase | S 23.2-36/37-45-59 |
| Odour | characteristic |
| Form | liquid |
| Color | colourless |
| Ignition temprature | 982°C |
| Solubility in water | 0.8 g/l (20°c) |
| Solubility in water | soluble (20°c) |
| Solubility in water | soluble (20°c) |
| Melting point | ~-23 °C |
| Boiling point | 76.7°C |
| Vapur pressure | 120 hPa (20°c) |
| Viscosity dynamical | 0.96 mPa*s (20°c) |
| Saturation Concentration | 754 g/m3 (20°c) |
| Assay | ≥ | 99.9 | % |
| Appearance | Clear | ||
| Identification | Conforms | ||
| Colour | ≤ | 10 | Hazen |
| Acidity | ≤ | 0.0005 | meq/g |
| Alkalinity | ≤ | 0.0002 | meq/g |
| Transmission@265 nm | ≥ | 10 | % |
| Transmission@270 nm | ≥ | 50 | % |
| Transmission@277 nm | ≥ | 80 | % |
| Transmission@282 nm | ≥ | 90 | % |
| Transmission from 290 nm | ≥ | 98 | % |
| Evaporation residue | ≤ | 0.0005 | % |
| Water | ≤ | 0.005 | % |
Carbon tetrachloride for UV is a high-purity, low-absorbance solvent tailored for ultraviolet (UV) and spectrophotometric applications in analytical laboratories, providing a clear optical medium for precise absorption measurements, although its pharmaceutical use is extremely limited due to toxicity and regulatory restrictions.
🏭⚗️ Production
Carbon tetrachloride for UV is produced through rigorous purification processes, including fractional distillation and filtration to remove moisture, peroxides, and trace impurities that could affect UV absorbance. The solvent is packaged under inert, moisture-controlled conditions in amber or sealed containers to preserve optical clarity and chemical stability during analytical use.
🔬 Properties
Carbon tetrachloride is a clear, colorless liquid with a faint sweet or chloroform-like odor, non-polar and immiscible with water. It has a boiling point of approximately 76–77 °C and a density around 1.59 g/cm³ at 25 °C. It exhibits minimal UV absorbance above 265 nm, providing a stable baseline for UV spectrophotometric measurements, and is ideal for dissolving non-polar compounds due to its chemical inertness and non-polarity.
🧪 Applications
In laboratory settings, Carbon tetrachloride for UV is used as a solvent or reference medium in UV–Vis spectroscopy when non-polar compounds, oils, or halogenated analytes require a solvent with very low UV absorbance and minimal hydrogen-bonding interactions. It is suitable for preparation of standard and calibration solutions, baseline correction, and dissolution studies of non-polar organic substances. Its pharmaceutical applications are limited due to high toxicity, so it is primarily used in controlled analytical research environments.
⚠️ Safety
Carbon tetrachloride is highly toxic by inhalation, ingestion, and skin contact, and exposure can cause severe liver and kidney damage. It may decompose under heat or UV irradiation to produce highly toxic compounds. Although non-flammable under normal conditions, it must be handled in well-ventilated fume hoods with full personal protective equipment, including gloves, goggles, and lab coats. Containers should be tightly sealed and stored away from heat, light, and strong oxidizers. Disposal must follow strict hazardous waste protocols.
