Gas constant pressure capacity tester
A volumetric measurement and gas technology, applied in the field of quantitative analysis of chemical substances, can solve the problems of poor repeatability of analysis results, difficult to obtain accurate results, and complicated measurement methods, and achieve the effects of simple method, good repeatability and high accuracy
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Embodiment 1
[0074] Sample 1: lithium borohydride sample weight: 0.0325g
[0075] Solvent: Dioxane
[0076] Hydrogen release volume:
[0077] V 1 =2.10+2.25+2.80+2.70=9.85
[0078] V 2 =41.10+42.05+42.35+41.95=167.45
[0079] V 2 -V 1 = 167.45-9.85 = 157.60
[0080] Atmospheric pressure P at the time of detection t =999.0
[0081] Ambient temperature T during detection t =32°C+273=305°K
[0082] Look up the table: P H2O =35.663
[0083] P S =38.756
[0084]
[0085] = ( 167.45 - 9.85 ) × ( 999.0 - 35.663 - 38.756 ) × 273 ( 273 + 32 ) ...
Embodiment 2
[0088] Sample 2: lithium borohydride sample weight: 0.0270g
[0089] Solvent: Dioxane
[0090] Hydrogen release volume:
[0091] V 1 =3.40+4.45+3.45+4.00=15.30
[0092] V 2 =35.90+37.30+36.50+36.80=146.50
[0093] V 2 -V 1 = 146.50-15.30 = 131.20
[0094] Atmospheric pressure P at the time of detection t =999.0
[0095] Ambient temperature T during detection t =32°C+273=305°K
[0096] Look up the table: P H2O =35.663
[0097] P S =38.756
[0098]
[0099] = ( 146.50 - 15.30 ) × ( 999.0 - 35.663 - 38.756 ) × 273 ( 273 + 32 ) ...
Embodiment 3
[0105] Sample 3: lithium borohydride sample weight: 0.0229g
[0106] Solvent: Glycerin
[0107] Hydrogen release volume:
[0108] V 1 =3.30+4.40+3.40+3.95=15.05
[0109] V 2 =29.95+30.90+30.85+30.90=122.60
[0110] V 2 -V 1 = 122.60-15.05 = 107.55
[0111] Atmospheric pressure P at the time of detection t =1008.0
[0112] Ambient temperature T during detection t =29.8°C+273=302.8°K
[0113] Look up the table: P H2O =31.461
[0114] P S =32.668
[0115]
[0116] = ( 122.60 - 15.05 ) × ( 1008.0 - 31.461 - 32.668 ) × 273 ( 273 + 29.8 ) ...
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