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Methane
74-82-8 | DTXSID8025545
Searched by Approved Name: Found 1 result for 'Methane'.
Methane
Wikipedia
Intrinsic Properties
Molecular Formula: CH4
Average Mass: 16.043 g/mol
Monoisotopic Mass: 16.031300 g/mol
Structural Identifiers
Presence in Lists
Record Information
Citation
U.S. Environmental Protection Agency. Chemistry Dashboard. https://comptox.epa.gov/dashboard/DTXSID8025545 (accessed April 24, 2018), Methane
Data Quality
Level 1:Expert curated, highest confidence in accuracy and consistency of unique chemical identifiers
Level 2:Expert curated, unique chemical identifiers using multiple sources
Level 3:Programmatically curated from high quality EPA source, unique chemical identifiers have no conflicts in ChemID and PubChem
Level 4:Programmatically curated from ChemID, unique chemical identifiers have no conflicts in PubChem
Level 5:Programmatically curated from ACToR or PubChem, unique chemical identifiers with low confidence, single public source
Quality Control Notes
No Quality Control Notes.
|
Property |
Average |
Median |
Range |
Unit |
|||
|---|---|---|---|---|---|---|---|
|
Experimental |
Predicted |
Experimental |
Predicted |
Experimental |
Predicted |
||
LogP: Octanol-Water |
- |
6.26e-01 (5) |
- |
0.78 |
- |
-0.461 to 1.09 |
- |
Water Solubility |
1.37e-03 (1) |
1.67e-01 (3) |
- |
1.63e-01 |
1.37e-03 |
6.97e-03 to 3.33e-01 |
mol/L |
Flash Point |
- |
-228 (1) |
- | - | - | - |
°C |
Melting Point |
-38.2 (8) |
-149 (3) |
-182 |
-153 |
-183 to 255 |
-177 to -117 |
°C |
Boiling Point |
-163 (2) |
-103 (4) |
-163 |
-101 |
-164 to -162 |
-164 to -44.5 |
°C |
Vapor Pressure |
466000 (1) |
93600 (3) |
- |
69700 |
466000 |
5820 to 205000 |
mmHg |
LogKoa: Octanol-Air |
-0.380 (1) |
1.72e-03 (1) |
- | - | - | - | - |
Henry's Law |
- |
6.28e-02 (1) |
- | - | - | - |
atm-m3/mole |
|
LogP: Octanol-Water |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
6.26e-01 (5) |
0.78 |
-0.461 to 1.09 |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
EPISUITE |
0.78 |
Not Available |
Not Available |
|
|
NICEATM |
7.02e-01 |
Not Available |
Available |
|
|
ACD/Labs Consensus |
1.02 |
Not Available |
Not Available |
|
|
ACD/Labs |
1.09 |
Not Available |
Not Available |
|
|
OPERA |
-0.461 |
OPERA Model Report |
Available |
|
|
Water Solubility |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental |
1.37e-03 (1) |
- |
1.37e-03 |
| Predicted |
1.67e-01 (3) |
1.63e-01 |
6.97e-03 to 3.33e-01 |
| Experimental | ||||
|---|---|---|---|---|
|
Source |
Result |
|||
|
PhysPropNCCT |
1.37e-03 mol/L |
|||
| Predicted | ||||
Source |
Result |
Calculation Details |
QMRF |
|
|
EPISUITE |
1.63e-01 mol/L |
Not Available |
Not Available |
|
|
NICEATM |
3.33e-01 mol/L |
Not Available |
Available |
|
|
OPERA |
6.97e-03 mol/L |
OPERA Model Report |
Available |
|
|
Flash Point |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
-228 (1) |
- |
- |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
ACD/Labs |
-228 °C |
Not Available |
Not Available |
|
|
Melting Point |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental |
-38.2 (8) |
-182 |
-183 to 255 |
| Predicted |
-149 (3) |
-153 |
-177 to -117 |
| Experimental | ||||
|---|---|---|---|---|
|
Source |
Result |
|||
|
Jean-Claude Bradley Open Melting Point Dataset |
-182 °C |
|||
|
Jean-Claude Bradley Open Melting Point Dataset |
-182 °C |
|||
|
Jean-Claude Bradley Open Melting Point Dataset |
-183 °C |
|||
|
Oxford University Chemical Safety Data (No longer updated) |
-182 °C |
|||
|
Alfa Aesar |
248 °C |
|||
|
Alfa Aesar |
104 °C |
|||
|
Alfa Aesar |
255 °C |
|||
|
PhysPropNCCT |
-182 °C |
|||
| Predicted | ||||
Source |
Result |
Calculation Details |
QMRF |
|
|
EPISUITE |
-153 °C |
Not Available |
Not Available |
|
|
NICEATM |
-117 °C |
Not Available |
Available |
|
|
OPERA |
-177 °C |
OPERA Model Report |
Available |
|
|
Boiling Point |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental |
-163 (2) |
-163 |
-164 to -162 |
| Predicted |
-103 (4) |
-101 |
-164 to -44.5 |
| Experimental | ||||
|---|---|---|---|---|
|
Source |
Result |
|||
|
Oxford University Chemical Safety Data (No longer updated) |
-164 °C |
|||
|
PhysPropNCCT |
-162 °C |
|||
| Predicted | ||||
Source |
Result |
Calculation Details |
QMRF |
|
|
EPISUITE |
-62.4 °C |
Not Available |
Not Available |
|
|
NICEATM |
-44.5 °C |
Not Available |
Available |
|
|
ACD/Labs |
-164 °C |
Not Available |
Not Available |
|
|
OPERA |
-139 °C |
OPERA Model Report |
Available |
|
|
Vapor Pressure |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental |
466000 (1) |
- |
466000 |
| Predicted |
93600 (3) |
69700 |
5820 to 205000 |
| Experimental | ||||
|---|---|---|---|---|
|
Source |
Result |
|||
|
PhysPropNCCT |
466000 mmHg |
|||
| Predicted | ||||
Source |
Result |
Calculation Details |
QMRF |
|
|
NICEATM |
5820 mmHg |
Not Available |
Available |
|
|
ACD/Labs |
205000 mmHg |
Not Available |
Not Available |
|
|
OPERA |
69700 mmHg |
OPERA Model Report |
Available |
|
|
LogKoa: Octanol-Air |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental |
-0.380 (1) |
- |
- |
| Predicted |
1.72e-03 (1) |
- |
- |
| Experimental | ||||
|---|---|---|---|---|
|
Source |
Result |
|||
|
PhysPropNCCT |
-0.380 |
|||
| Predicted | ||||
Source |
Result |
Calculation Details |
QMRF |
|
|
OPERA |
1.72e-03 |
OPERA Model Report |
Available |
|
|
Henry's Law |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
6.28e-02 (1) |
- |
- |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
OPERA |
6.28e-02 atm-m3/mole |
OPERA Model Report |
Available |
|
|
Property |
Average |
Median |
Range |
Unit |
|||
|---|---|---|---|---|---|---|---|
|
Experimental |
Predicted |
Experimental |
Predicted |
Experimental |
Predicted |
||
Soil Adsorp. Coeff. |
- |
6.01 (2) |
- |
6.01 |
- |
3.18 to 8.83 |
L/kg |
Atmos. Hydroxylation Rate |
6.86e-15 (1) |
6.78e-15 (1) |
- | - | - | - |
cm3/molecule*sec |
Biodeg. Half-Life |
- |
21.2 (1) |
- | - | - | - |
days |
Fish Biotrans. Half-Life (Km) |
- |
1.66e-01 (1) |
- | - | - | - |
days |
Bioaccumulation Factor |
- |
1.92 (1) |
- | - | - | - | - |
Bioconcentration Factor |
- |
13.4 (4) |
- |
9.21 |
- |
1.92 to 33.2 |
- |
|
Soil Adsorp. Coeff. |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
6.01 (2) |
6.01 |
3.18 to 8.83 |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
EPISUITE |
8.83 L/kg |
Not Available |
Not Available |
|
|
OPERA |
3.18 L/kg |
OPERA Model Report |
Available |
|
|
Atmos. Hydroxylation Rate |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental |
6.86e-15 (1) |
- |
- |
| Predicted |
6.78e-15 (1) |
- |
- |
| Experimental | ||||
|---|---|---|---|---|
|
Source |
Result |
|||
|
PhysPropNCCT |
6.86e-15 cm3/molecule*sec |
|||
| Predicted | ||||
Source |
Result |
Calculation Details |
QMRF |
|
|
OPERA |
6.78e-15 cm3/molecule*sec |
OPERA Model Report |
Available |
|
|
Biodeg. Half-Life |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
21.2 (1) |
- |
- |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
OPERA |
21.2 days |
OPERA Model Report |
Available |
|
|
Fish Biotrans. Half-Life (Km) |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
1.66e-01 (1) |
- |
- |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
OPERA |
1.66e-01 days |
OPERA Model Report |
Available |
|
|
Bioaccumulation Factor |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
1.92 (1) |
- |
- |
| Predicted | ||||
|---|---|---|---|---|
Source |
Result |
Calculation Details |
QMRF |
|
|
EPISUITE |
1.92 |
Not Available |
Not Available |
|
|
Bioconcentration Factor |
|||
|---|---|---|---|
Average |
Median |
Range |
|
| Experimental | - | - | - |
| Predicted |
13.4 (4) |
9.21 |
1.92 to 33.2 |
Found 16 synonyms
- Legend:
- Valid Synonyms
- Good Synonyms
- Other Synonyms
| Methane |
| 74-82-8 Active CAS-RN |
| 4-01-00-00003 Beilstein Registry Number |
| Marsh gas |
| metano en estado gaseoso |
| Methyl hydride |
| UN 1971 |
| UN 1972 |
| BRN 1718732 |
| EINECS 200-812-7 |
| Fire Damp |
| UNII-OP0UW79H66 FDA Registry Number |
| CH4 |
| Methan |
| metano |
| 131452-56-7 Deleted CAS-RN |
National Health and Nutrition Examination Survey (NHANES) Inferences
There is no exposure monitoring data available.
Exposure Predictions
There is no exposure data available.
PubChem Articles
PubChem Patents
Searched with a similarity threshold of 0.8
Executive Summary