Diluted Alcohol
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Tóm tắt nội dung
This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
1 DEFINITION
Diluted Alcohol is a mixture of Alcohol and water containing NLT 41.0% and NMT 42.0% by weight, corresponding to NLT 48.4% and NMT 49.5% by volume, at 15.56°, of C2H5OH.
Alcohol | 500 mL |
Purified Water | 500 mL |
Measure the Alcohol and the Purified Water separately at the same temperature, and mix. If the water and the Alcohol and the resulting mixture are measured at 25°, the volume of the mixture will be 970 mL.
2 SPECIFIC TESTS
Specific Gravity 〈841〉: 0.935–0.937 at 15.56°, indicating 41.0%–42.0% by weight, or between 48.4% and 49.5% by volume, of C2H5OH
Other Requirements: In other respects, it meets the requirements in Alcohol, allowance being made for the difference in alcohol concentration.
3 ADDITIONAL REQUIREMENTS
Packaging and Storage: Preserve in tight containers, remote from fire.
