- InChI
- InChI=1S/O2Si/c1-3-2
- InChI Key
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- Formula
- O2Si
- SMILES
- O=[Si]=O
- Molecular Weight1
- 60.08
- CAS
- 7631-86-9
- Other Names
-
- Amorphous silica
- Hydrolyzed silica (cab-o-sil)
- Crystalline silica
- Silicon dioxide
- Silica
- Silicon(iv) oxide
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- Cp,liquid : Liquid phase heat capacity (J/mol×K).
- logPoct/wat : Octanol/Water partition coefficient.
- Pvap : Vapor pressure (kPa).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| logPoct/wat | -0.618 | Crippen Calculated Property |
Cheméo can also estimate Normal Boiling Point Temperature, Normal melting (fusion) point, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Ionization energy, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [62.13; 62.23] | J/mol×K | [4500.00; 6000.00] |
NIST
|
| Equation | Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 6.15571e+01 | |||
| Coefficient B | 4.46596e-01 | |||
| Coefficient C | -9.02670e-02 | |||
| Coefficient D | 6.24700e-03 | |||
| Coefficient E | -3.66459e+00 | |||
| Reference | Chase, 1998 | |||
| Comment | F=-333.4418, G=289.4972, H=-305.4324; Data last reviewed in June, 1967 | |||
| Temperature range, min. | 4500.00 | |||
| Temperature range, max. | 6000.00 | |||
| Cp,gas | 62.13 | J/mol×K | 4500.00 | Calculated Property |
| Cp,gas | 62.14 | J/mol×K | 4666.67 | Calculated Property |
| Cp,gas | 62.16 | J/mol×K | 4833.33 | Calculated Property |
| Cp,gas | 62.17 | J/mol×K | 5000.00 | Calculated Property |
| Cp,gas | 62.18 | J/mol×K | 5166.67 | Calculated Property |
| Cp,gas | 62.19 | J/mol×K | 5333.33 | Calculated Property |
| Cp,gas | 62.20 | J/mol×K | 5500.00 | Calculated Property |
| Cp,gas | 62.21 | J/mol×K | 5666.67 | Calculated Property |
| Cp,gas | 62.22 | J/mol×K | 5833.33 | Calculated Property |
| Cp,gas | 62.23 | J/mol×K | 6000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,liquid | [85.77; 85.77] | J/mol×K | [1996.00; 4500.00] |
NIST
|
| Equation | Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,liquid in J/mol×K, T in K | |||
| Coefficient A | 8.57720e+01 | |||
| Coefficient B | -1.60000e-05 | |||
| Coefficient C | 4.00000e-06 | |||
| Coefficient D | -3.80908e-07 | |||
| Coefficient E | -1.70000e-05 | |||
| Reference | Chase, 1998 | |||
| Comment | F=-952.8700, G=113.3440, H=-902.6610; Data last reviewed in June, 1967 | |||
| Temperature range, min. | 1996.00 | |||
| Temperature range, max. | 4500.00 | |||
| Cp,liquid | 85.77 | J/mol×K | 1996.00 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 2274.22 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 2552.44 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 2830.67 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 3108.89 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 3387.11 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 3665.33 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 3943.56 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 4221.78 | Calculated Property |
| Cp,liquid | 85.77 | J/mol×K | 4500.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.34; 100.32] | kPa | [2005.00; 2500.00] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 2.26129e+01 | |||
| Coefficient B | -4.60714e+04 | |||
| Coefficient C | 5.88830e+01 | |||
| Reference | Stull, 1947 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 2005.00 | |||
| Temperature range, max. | 2500.00 | |||
| Pvap | 1.34 | kPa | 2005.00 | Calculated Property |
| Pvap | 2.39 | kPa | 2060.00 | Calculated Property |
| Pvap | 4.14 | kPa | 2115.00 | Calculated Property |
| Pvap | 6.98 | kPa | 2170.00 | Calculated Property |
| Pvap | 11.48 | kPa | 2225.00 | Calculated Property |
| Pvap | 18.45 | kPa | 2280.00 | Calculated Property |
| Pvap | 29.00 | kPa | 2335.00 | Calculated Property |
| Pvap | 44.68 | kPa | 2390.00 | Calculated Property |
| Pvap | 67.55 | kPa | 2445.00 | Calculated Property |
| Pvap | 100.32 | kPa | 2500.00 | Calculated Property |
Similar Compounds
Find more compounds similar to Dioxosilane.
Sources
- Cheméo Relay (1.0)
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Crippen Method
- Crippen Method
- NIST Webbook
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
Take the time to validate and double check the source of the data.
Calculated This icon marks a calculated value or equation: a prediction, not a measurement.
These property values are available through the Cheméo API. A free account gives you an access key.