14940-65-9

Basic information

• Product Name: (~3~H_2_)water
• Synonyms: [3H]WATER;WATER, [3H];tritium oxide;TRITIATED WATER;ditritium oxide;water, tritiated
• CAS NO: 14940-65-9
• Molecular Formula: H₂O
• Molecular Weight: 22.0315
• Mol File: 14940-65-9.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 100°C at 760 mmHg
• Density: 1.214
• Vapor Pressure: 24.5mmHg at 25°C
• Storage Temp.: 2-8°C
• CAS DataBase Reference: (~3~H_2_)water(CAS DataBase Reference)
• NIST Chemistry Reference: (~3~H_2_)water(14940-65-9)
• EPA Substance Registry System: (~3~H_2_)water(14940-65-9)

Safety Data

• Hazard Codes: R
• RIDADR: UN 2910 7
• WGK Germany: 3
• HazardClass: 7
• Hazardous Substances Data: 14940-65-9(Hazardous Substances Data)

Usage

Chemical Properties

liquid; triple point 4.49°C; liquid vapor pressure at 25°C 2.64kPa; enthalpy of vaporization ~45.81kJ/mol; ionization constant ~6×1016; temp of maximum density 13.4°C [KIR78]

Upstream product

• 15086-10-9 tritium 
• 80937-33-3 oxygen 
• 13670-17-2 ⁽¹⁾H,⁽³⁾H-water 
• 20272-95-1 water 
• 1314-15-4 platinum(IV) oxide 
• 13774-60-2 ⁽³⁾H₂S 

Downstream Products

• 1271-19-8 bis(cyclopentadienyl)titanium dichloride 
• 13670-17-2 ⁽¹⁾H,⁽³⁾H-water 

Relevant articles and documents

Synthesis of 1-Hydrogermatrane Labelled with Tritium on the Ge–H Bond

The method of preparation of 1Н-germatrane labelled with tritium on the germanium–hydrogen bond was elaborated with specific activity of 0.3 mCi/mg (~70 mCi/mmol).

Ozone Production in the Reaction of T2 and O2 Gas: A Comparison of Experimental Results and Model Predictions

Ozone, predicted to be an important intermediate species in T2 oxidation, was monitored in situ by UV absorption spectroscopy for 0.01 - 1.0 mol percent T2 in O2 (1 atm, 298 K).These are the first measurements of a tritium oxidation reaction intermediate.The experimental results were compared with the predictions of our comprehensive model of tritium oxidations The experimentally determined temporal variation in ozone concentration is qualitatively reproduced by the model.As predicted, the measured initial rate of ozone production varied linearly with the initial T2 concentration (0), but with a value one-third of that predicted.The steady-state ozone concentration (SS) was predicted to be dependent on 00.3, but measured values showed a 00.6 dependence, resulting in SS a factor of 4 larger than predicted for a 1.0percent T2-O2 mixture.Addition of H2 to the T2-O2 mixture, to differentiate between the radiolytic and chemical behavior of the tritium, produced a decrease in SS which was larger than predicted.Changing the reaction cell surface-to-volume ratio showed indications of minor surface removal of ozone.No resonable variation in model input parameters brought both the predicted initial ozone production rates and steady-state concentrations of ozone into agreement with the experimental results.Though qualitative agreement was achieved, further studies, with emphasis on surface effects, are necessary to explain quantitative differences and gain a greater understanding of the oxidation mechanism.