Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Heavy Water - Thermophysical Properties

Thermodynamic properties of heavy water (D2O) like density, melting temperature, boiling temperature, latent heat of fusion, latent heat of evaporation, critical temperature and more.

Heavy water ( deuterium oxide , ²H₂O , D₂O ) is a form of water that contains a larger than normal amount of the hydrogen isotope deuterium (= heavy hydrogen = ²H = D), rather than the common hydrogen-1 isotope ( ¹ H = H = protium) that makes up most of the hydrogen in normal water.

Thermodynamic properties of heavy water - D₂O:

Boiling temperature (at 101.325 kPa): 101.40 ^oC = 214.52 °F
Bulk modulus elasticity (at 25°C): 2.10 x 10⁹ Pa or N/m²
Critical density: 0.356 g/cm³ = 0.691 slug/ft³ = 3.457 lb_m /gal(US)
Critical pressure : 213.88 atm = 220.98 bar = 21.671 MPa (MN/m²) = 3143 psi (=lb_f /in²)
Critical temperature : 370.697 ^oC = 699.255 °F
Ionization constant , pK_w (at 25°C): 14.951
Latent heat of evaporation (at 101.4°C): 41.521 KJ/mol = 2073.20 kJ/kg = 891.32 Btu(IT)/lb
Latent heat of fusion: 6.132 kJ/mol = 306.2 kJ/kg = 131.64 Btu(IT)/lb
Maximum density (at 11.23 ^oC): 1105.9 kg/m³ = 2.1460 slug/ft³ = 10.74048 lb_m /gal(US)
Melting temperature (at 101.325 kPa): 3.81 ^oC = 38.86 °F
Molar mass: 20.02751 g/mol
pD (~pH) (at 25°C): 7.43
Specific heat (C_p ) water (at 20°C): 4.219 kJ/kgK = 1.008 Btu(IT)/(lb_m °F) or kcal/(kg K)
Specific weight (at 11.23 ^oC): 10.8452 kN/m³ = 69.0391 lb_f /ft³
Surface tension (at 25°C): 71.87 dyn/cm
Triple point pressure: 0.00652 atm = 0.00661 bar = 661 Pa = 0.0959 psi (=lb_f /in²)
Triple point temperature: 3.82 °C = 38.88 °F
Vapor pressure (at 25°C): 20.6 mmHg = 0.027 atm = 0.028 bar = 2750 Pa = 0.398 psi
Viscosity (at 20°C): 1.251 cP or mPa s

Ionization Constant, pK_w, of normal and heavy water with varying temperature .

See also more about atmospheric pressure , and STP - Standard Temperature and Pressure & NTP - Normal Temperature and Pressure ,
as well as Thermophysical properties of: Acetone , Acetylene , Air , Ammonia , Argon , Benzene , Butane , Carbon dioxide , Carbon monoxide , Ethane , Ethanol , Ethylene , Helium , Hydrogen , Hydrogen sulfide , Methane , Methanol , Nitrogen , Oxygen , Pentane , Propane , Toluene and Water .

Related Topics

Densities
Densities of solids, liquids and gases. Definitions and convertion calculators.
Material Properties
Properties of gases, fluids and solids. Densities, specific heats, viscosities and more.
Steam and Condensate
Design of steam & condensate systems with properties, capacities, sizing of pipe lines, system configuration and more.
Thermodynamics
Work, heat and energy systems.
Water Systems
Design of hot and cold water service and utility systems with properties, capacities, sizing of pipe lines and more.

Related Documents

Acetone - Thermophysical Properties
Chemical, physical and thermal properties of acetone, also called 2-propanone, dimethyl ketone and pyroacetic acid. Phase diagram included.
Air - Thermophysical Properties
Thermal properties of air at different temperatures - density, viscosity, critical temperature and pressure, triple point, enthalpi and entropi, thermal conductivity and diffusivity and more.
Ammonia - Thermophysical Properties
Chemical, Physical and Thermal Properties of Ammonia. Phase diagram included.
Benzene - Thermophysical properties
Chemical, physical and thermal properties of benzene, also called benzol. Phase diagram included.
Bulk Modulus and Fluid Elasticities
Introduction to - and definition of - Bulk Modulus Elasticity commonly used to characterize the compressibility of fluids.
Carbon Dioxide - Thermophysical Properties
Chemical, physical and thermal properties of carbon dioxide. Phase diagram included.
Critical Temperatures and Pressures for some Common Substances
Critical temperatures and pressures for some common substances like air, alcohol, ether, oxygen and more.
Density vs. Specific Weight and Specific Gravity
An introduction to density, specific weight and specific gravity.
Ethylene - Thermophysical Properties
Chemical, physical and thermal properties of ethylene, also called ethene, acetene and olefiant gas. Phase diagram included.
Gases Solved in Water - Diffusion Coefficients
Diffusion flux [kg/m²s] tells how fast a substanse solved in another substance flows due to concentration gradients. Diffusion constants [m²/s] for several gases in water.
Heat Capacity
The amount of heat required to change the temperature of a substance by one degree.
Ice and Water - Melting Points vs. Pressure
Online calculator, figures and tables with melting points of ice to water at pressures ranging from 0 to 29000 psia (0 to 2000 bara). Temperature given as °C, °F, K and °R.
Liquids - Latent Heat of Evaporation
Latent heat of vaporization for fluids like alcohol, ether, nitrogen, water and more.
Methane - Thermophysical Properties
Chemical, Physical and Thermal Properties of Methane - CH₄. Phase diagram included.
Methanol - Thermophysical Properties
Chemical, physical and thermal properties of methanol, CH₃OH (also called carbinol, wood alcohol, hydroxy methyl and methyl alcohol). Phase diagram included.
Pentane - Thermophysical Properties
Chemical, physical and thermal properties of pentane, also called n-pentane. Phase diagram included.
Viscosity - Absolute (Dynamic) vs. Kinematic
Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.
Water - Boiling Points at Higher Pressures
Online calculator, figures and tables showing boiling points of water at pressures ranging from 14.7 to 3200 psia (1 to 220 bara). Temperature given as °C, °F, K and °R.
Water - Boiling Points at Vacuum Pressure
Online calculator, figures and tables giving the boiling temperatures of water in varying vacuum, SI and Imperial units.
Water - Density, Specific Weight and Thermal Expansion Coefficients
Definitions, online calculator and figures and tables with water properties like density, specific weight and thermal expansion coefficient of liquid water at temperatures ranging 0 to 360°C (32 to 680°F).
Water - Dynamic (Absolute) and Kinematic Viscosity vs. Temperature and Pressure
Free online calculator - figures and tables with viscosity of water at temperatures ranging 0 to 360°C (32 to 675°F) - Imperial and SI Units.
Water - Ionization Constant, pKw, of Normal and Heavy Water
Ionization constant (= dissociation constant = self-ionization constant = ion product = autoprotolysis constant ) of water and heavy water, given as function of temperature (°C and °F) in figures and tables.
Water - Properties at Gas-Liquid Equilibrium Conditions
Figures and tables showing how the properties of water changes along the boiling/condensation curve (vapor pressure, density, viscosity, thermal conductivity, specific heat, Prandtl number, thermal diffusivity, entropy and enthalpy).
Water - Saturation Pressure vs. Temperature
Online calculator, figures and tables with water saturation (vapor) pressure at temperatures ranging 0 to 370 °C (32 to 700°F) - in Imperial and SI Units.
Water - Specific Heat vs. Temperature
Online calculator, figures and tables showing specific heat of liquid water at constant volume or constant pressure at temperatures from 0 to 360 °C (32-700 °F) - SI and Imperial units.
Water - Specific Volume vs. Temperature
Online calculator, figures and tables showing Specific Volume of water at temperatures ranging from 0-370 °C and 32 - 700 °F - Imperial and IS Units.
Water - Thermal Conductivity vs. Temperature
Figures and tables showing thermal conductivity of water (liquid and gas phase) with varying temperature and pressure, SI and Imperial units.
Water - Thermal Diffusivity vs. Temperature and Pressure
Figures and tables with thermal diffusivity of liquids and gaseous water at varying temperarures and pressures - SI and Imperial units.
Water - Thermophysical Properties
Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more.
Water vs. Steam - Critical and Triple Points
Critical point is where vapor and liquid are indistinguishable and triple point is where ice, water and vapor coexist in thermodynamic equilibrium.

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Popular internal searches in the Engineering ToolBox

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

the Engineering ToolBox Privacy Policy

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Advertise in the ToolBox

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.

Citation

This page can be cited as

The Engineering ToolBox (2017). Heavy Water - Thermophysical Properties . [online] Available at: https://www.engineeringtoolbox.com/heavy-water-thermodynamic-properties-d_2003.html [Accessed Day Month Year].

Modify the access date according your visit.