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Speed of Sound and Density of Difluoromethane

Speed of sound and density measurements for difluoromethane. Speed of sound was measured in the liquid phase using a dual-path pulse-echo instrument at temperatures between 230 and 345 K, with pressures from 2.1 to 70 MPa. Vapor-phase density was measured using a dual-sinker densimeter instrument at temperatures from 240 to 340 K and pressures from 0.1 to 1.61 MPa.

About this Dataset

Updated: 2025-04-06
Metadata Last Updated: 2022-02-23 00:00:00
Date Created: N/A
Data Provided by:
Dataset Owner: N/A

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Table representation of structured data
Title Speed of Sound and Density of Difluoromethane
Description Speed of sound and density measurements for difluoromethane. Speed of sound was measured in the liquid phase using a dual-path pulse-echo instrument at temperatures between 230 and 345 K, with pressures from 2.1 to 70 MPa. Vapor-phase density was measured using a dual-sinker densimeter instrument at temperatures from 240 to 340 K and pressures from 0.1 to 1.61 MPa.
Modified 2022-02-23 00:00:00
Publisher Name National Institute of Standards and Technology
Contact mailto:[email protected]
Keywords Speed of Sound , Density , DFM , R-32 , HFC-32 , low-GWP , Material property , Reference data
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