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EC number: 231-595-7 | CAS number: 7647-01-0
Density
Administrative data
Link to relevant study record(s)
Description of key information
7647-01-0, Hydrogen Chloride,
Weight of evidence: The density of the gas is 1.639 g/L (1.27 times heavier than air= relative density) and density of commercial concentrated acid (37.8 g/100g solution) 1.19 g/mL
Key value for chemical safety assessment
- Relative density at 20C:
- 1.27
Additional information
7647-01-0,density,Pohanisch, Sittig's Handbook,2008,rs
the relative vapour density is 1.27.
7647-01-0,Density, Patnaik, 2003, Handbook of Inorganic Chemicals,rs
The density of the gas is 1.639 g/L (1.268 times heavier than air) and density of commercial concentrated acid (37.8 g/100g solution) 1.19 g/mL, and constant boiling solution (20.22g/100g solution) 1.096 g/mL at 25°C.
7647-01-0,Density, O'Niel, The Merck Index,2001,rs
The density of the gas is 1.639 g/L .
7647-01-0,Density,Lewis,Sax, 2004,rs
The density of the gas is 1.639 g/L at 0°C and The density of the concentrated acid 1.194 g/mL at 26°C .
7647-01-0,Density,Tesarik,1967, rs Chemicky Prumysl 1967 V17(7) P387-8
The density of the concentrated acid is 1.17-1.18 g/cm3 at 15°C.
7647-01-0,Density,Bell,2007,PHYSICAL AND CHEMICAL PROPERTIES OF CONCENTRATED HCL,rs
The density is 1.17-1.18 g/ml( 34.1and 36.2%) depending on the concentration of hydrogen chloride. No data on temperature measurement are given. If it is asumed that the temperature is roomtemperature, it does not confict with the data of the handbooks with higer concentration.
The density of the gas in the different handbooks is exactly the same, because it is a calculated value from its molecular weight and the Ideal Gas Law.
At lower temperature(15°C) the density of the solution is lower.
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