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| CAS No.: | 75-28-5 |
|---|---|
| Name: | Isobutane |
| Molecular Structure: | |
|
|
|
| Formula: | C4H10 |
| Molecular Weight: | 58.1234 |
| Synonyms: | 1,1-Dimethylethane;A 31 (hydrocarbon);Isobutane;Purifrigor Iso 2;Purifrigor Iso 2.5;Purifrigor Iso 3;Purifrigor Iso 3.5;R 600a;Trimethylmethane;iso-Butane; |
| EINECS: | 200-857-2 |
| Density: | 0.612 g/cm3 |
| Melting Point: | -160 °C(lit.) |
| Boiling Point: | −12 °C(lit.) |
| Flash Point: | -83 °C |
| Appearance: | a kind of air with no odour and no color |
| Hazard Symbols: |
 F+
|
| Risk Codes: | 12 |
| Safety: | 9-16 |
| Transport Information: | UN 1969 |
| PSA: | 0.00000 |
| LogP: | 1.66230 |
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- 90221-55-92-bromo-5-methylbenzaldehyde
- 885590-99-82,3-DIFLUORO-4-IODOBENZALDEHYDE
- 97730-31-9(S)-4'-(2-Methylbutyl)Biphenyl-4-Carbonitrile
A
- 75-28-5
Isobutane
C
- 16873-17-9
deuterium
| Conditions | Yield |
|---|---|
| With water In water byproducts: H2, HD; acid hydrolysis with 20% DCl (84%); quantities of the products determined; | A n/a B 100% C n/a D n/a |
| Conditions | Yield |
|---|---|
| With water In water acid hydrolysis with 20% HCl; quantities of the products determined; | A n/a B 100% C n/a D n/a |
| Conditions | Yield |
|---|---|
| With triisopropylborane; trifluorormethanesulfonic acid In 1,1,2-Trichloro-1,2,2-trifluoroethane 1.) -30 deg C, 30 min 2.) room temp., 6 h; | A 99.9% B 0.1% |
| Conditions | Yield |
|---|---|
| With tris-(trimethylsilyl)silane; 2,2'-azobis(isobutyronitrile) In toluene at 80℃; for 0.5h; | 98% |
| Conditions | Yield |
|---|---|
| With trifluorormethanesulfonic acid In 1,1,2-Trichloro-1,2,2-trifluoroethane 1.) -30 deg C 2.) room temp.; | A 92.5% B 7.5% |
| Conditions | Yield |
|---|---|
| In hexane room temp.; further products:t-butylcyclopentadiene, tetramethylbutane, 2-methyl-4,4-dimethyl-1-pentene; GCL; | A 92% B n/a C n/a D n/a |
| Conditions | Yield |
|---|---|
| With aluminium trichloride; polyethoxysilane (silicone GKZh-94) In nitromethane Product distribution; | A 6% B 91% |
- 463-82-1
2,2-dimethylpropane
A
- 34557-54-5
methane
B
- 74-84-0
ethane
C
- 74-98-6
propane
D
- 75-28-5
Isobutane
E
- 78-78-4
methylbutane
| Conditions | Yield |
|---|---|
| With hydrogen; platinum at 243℃; Product distribution; further reaction temperatures, catalysts; | A 2.7% B 1.5% C 1.5% D 6.7% E 87.8% |
| at 304℃; Product distribution; also from n-butane, other products,other temperatures, other catalysts; | A 7% B 1.7% C 2.4% D 15.6% E 73.3% |
| With hydrogen; NaY-500; palladium at 216℃; Product distribution; Kinetics; Thermodynamic data; other catalysts, other temperatures; activation energies; | |
| With hydrogen In neat (no solvent) at 275℃; under 1225.5 Torr; Reagent/catalyst; Inert atmosphere; |
| Conditions | Yield |
|---|---|
| With hydrogen byproducts: C5 hydrocarbons, paraffin; 20 h, 300-310°C, 100 atm; | A 1.6% B 85.7% C 2.5% D 3.1% |
| With H2 byproducts: C5 hydrocarbons, paraffin; 20 h, 300-310°C, 100 atm; | A 1.6% B 85.7% C 2.5% D 3.1% |
- 78709-76-9
{bis(triphenylphosphine)nitrogen}{HW(CO)5}
- 507-19-7
t-butyl bromide
A
- 15131-04-1
bromopentacarbonyl tungstate(0)(1-)
B
- 75-28-5
Isobutane
| Conditions | Yield |
|---|---|
| In tetrahydrofuran Kinetics; 26.0°C, 20-fold excess of alkyl halide; second-order rate const. is given; anal. of the reaction mixt. by gas chromy.; | A n/a B 81% |
- Total:19 Page 1 of 1 1
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DOT Classification: 2.1; Label: Flammable Gas
Specification
The Isobutane , with the register number75-28-5, has other names as 1,1-Dimethylethane;2-Methylpropan ; 2-methyl-propan ; a31(hydrocarbon) ; i-Butane ; Isobutan ; Isobutane mixtures ; isobutane(dot) .
The physical properties of this chemcial are as followings: (1)ACD/LogP: 2.70 ; (2)ACD/LogD (pH 5.5): 2.7 ; (3)ACD/LogD (pH 7.4): 2.7 ; (4)ACD/BCF (pH 5.5): 66.02 ; (5)ACD/BCF (pH 7.4): 66.02 ; (6)ACD/KOC (pH 5.5): 698.43 ; (7)ACD/KOC (pH 7.4): 698.43 ; (8)Index of Refraction: 1.352 ; (9)Molar Refractivity: 20.53 cm3 ; (10)Molar Volume: 94.9 cm3 ; (11)Polarizability: 8.14 ×10-24 cm3 ; (12)Surface Tension: 15.5 dyne/cm ; (13)Density: 0.612 g/cm3 ; (14)Enthalpy of Vaporization: 21.3 kJ/mol ; (15)Vapour Pressure: 2580 mmHg at 25°C.
This is a kind of air with no odour and no color but is flammable and combustible. This is stable. And this is widely used in many ways. It could be used as the aerosol and the aerating agent. Besides, it could also be applied in Standard gas for the Petrochemical Corporation analysis and detecting instrument. What's more, it can be used in making the isooctane, and being the improver & refrigerant for the gasoline octane number.
Its product categories are including refrigerants;Organics;Refrigerant;Gas Cylinders;Hydrocarbons (Low Boiling point);Synthetic Organic Chemistry. Besides, its raw materials are in the following: Liquefied petroleum ges, C4 Fraction while its preparation products are the below: Propylene oxide, ISOBUTYLENE, Methacrylic acid, (1R-cis)-3-(2,2-dibromoethenyl)-2,2-dimethylcyclopropane carboxylic acid, N-BUTANE, 1-BUTENE, 1R-cis crysanthemic acid, ETHOPERMETHRIN，95%, 2,2,4-Trimethylpentane, etc.
Being a kind of extremely flammable chemical, it has an extremely low flash point and boiling point, and gases that catch fire in contact with air. So while dealing with it, you should be very cautious.
Keep container in a well-ventilated place and keep away from sources of ignition - No smoking
Additionally, you could convert the following data information into the molecular structure:
SMILES:CC(C)C
InChI:InChI=1/C4H10/c1-4(2)3/h4H,1-3H3
InChIKey:NNPPMTNAJDCUHE-UHFFFAOYAY
Below are the toxicity information of this chemical:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LCLo | inhalation | 1041gm/m3/2H (1041000mg/m3) | BEHAVIORAL: EXCITEMENT | Journal of Pharmacology and Experimental Therapeutics. Vol. 58, Pg. 74, 1936. |
| rat | LC50 | inhalation | 57pph/15M (570000ppm) | BEHAVIORAL: TREMOR BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Human Toxicology. Vol. 1, Pg. 239, 1982. |