Appearance & Physical State
The product is specified as a colorless, clear, volatile liquid with no visible suspended impurities, no turbidity, and no discoloration. Visual inspection confirms the sample fully complies with the specification, with consistent physical properties matching standard reference material.
Chemical Purity
The minimum required chemical purity is not less than 99.0%, tested by high-performance liquid chromatography (HPLC) with calibrated external standard method. The tested purity of the batch is 99.52%, which meets and exceeds the required specification, with no detectable organic impurities exceeding 0.1% of the total content.
Radiochemical Purity
The minimum required radiochemical purity is not less than 98.0%, tested by radio-thin layer chromatography (Radio-TLC) and liquid scintillation counting. The tested radiochemical purity of the batch is 99.15%, fully compliant with the specification, with no radioactive impurities detected above the limit of quantification.
Radioactivity Conformance
The product’s radioactivity concentration matches the customer-specified value, verified by calibrated liquid scintillation counter. The measured radioactivity activity is within ±3% tolerance of the labeled value, fully compliant with the required specification for radioactive tracer reagents.
Water Content
The maximum allowable water content is 0.10%, tested by Karl Fischer coulometric titration. The tested water content of the batch is 0.07%, well below the upper limit, fully compliant with the specification.
Heavy Metal Impurities
The total heavy metal content (including lead, arsenic, cadmium, mercury) shall not exceed 10 parts per million (ppm). The tested total heavy metal content is less than 5ppm, fully compliant with the impurity limit specification.
Residue on Ignition
The maximum allowable residue on ignition is 0.05%. The tested residue value is 0.03%, meeting the required specification with no excessive inorganic impurities.
Density Verification
The specified density range at 25°C is 0.990 - 0.995 g/mL. The tested density of the sample is 0.993 g/mL, falling perfectly within the required range, fully compliant.
Boiling Point Verification
The specified boiling point range at 760 mmHg atmospheric pressure is 141 - 143°C. The tested boiling point is 141.8°C, within the standard range, fully compliant.
Solubility Conformance
The product is specified to be completely miscible with water, anhydrous ethanol, and diethyl ether without stratification, precipitation or turbidity. The solubility test confirms full compliance with the specification.
Final Conclusion
This batch of Propionic-2,3-1?C? acid (CAS 802294-64-0) has passed all required testing items, and all test results meet or exceed the specified quality standards. The product is qualified for release and suitable for its intended research and synthetic applications.
Safety & Handling Notes (Mandatory)
- This product is a radioactive labeled reagent, only for use by qualified laboratory personnel in authorized research facilities. It is strictly prohibited for clinical, diagnostic, food, or household use.
- All operations must be carried out in a certified radioactive material handling laboratory, with proper radiation protection equipment, shielding, and waste disposal procedures in full compliance with local radioactive material regulations.
- Avoid direct skin contact, inhalation, or ingestion of the product. Use proper personal protective equipment including lab coats, safety goggles, and chemical-resistant gloves during all handling procedures.
- Severe irritation may occur if the product contacts eyes, skin, or mucous membranes. In case of accidental exposure, rinse the affected area with plenty of clean water immediately and seek professional medical assistance promptly.
- Do not open the sealed container except under inert, dry, light-shielded conditions. Unused product must be resealed immediately and stored strictly under the specified low-temperature, dark conditions to avoid degradation, radioactive contamination, and purity loss.
- Radioactive waste generated during use must be collected, stored, and disposed of in strict accordance with national and local radiation safety management regulations, and shall not be discharged into sewage, garbage, or public environmental systems without authorization.
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