ISOBUTANE
Isobutane
CAS: 75-28-5
Molecular Formula: C4H10
ISOBUTANE - Names and Identifiers
| Name | Isobutane |
| Synonyms | R600A R-600a Isobutane ISOBUTANE 2-METHYLPROPANE GEIGER FLOW GAS Isobutane,high purity 2-Methylpropane,high purity Isobutaneincylinderwithoutvalve Isobutane(incylinderwithoutvalve) 2-METHYLPROPANE, PRESSURE TIN WITH 250 M L (NET ~140 G) |
| CAS | 75-28-5 |
| EINECS | 200-857-2 |
| InChI | InChI=1/C4H10/c1-4(2)3/h4H,1-3H3 |
| InChIKey | NNPPMTNAJDCUHE-UHFFFAOYSA-N |
ISOBUTANE - Physico-chemical Properties
| Molecular Formula | C4H10 |
| Molar Mass | 58.12 |
| Density | 2.064g/mLat 25°C(lit.) |
| Melting Point | −160°C(lit.) |
| Boling Point | −12°C(lit.) |
| Flash Point | -83°C |
| Water Solubility | 48.9 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1963, 1966) |
| Vapor Presure | 72.2 psi ( 37.7 °C) |
| Vapor Density | 2.01 (21 °C, vs air) |
| Appearance | Colorless gas |
| Color | Colorless, very flammable gas with a faint odor |
| Exposure Limit | NIOSH REL: TWA 800 ppm (1,900 mg/m3). |
| BRN | 1730720 |
| Stability | Stable. Extremely flammable. May form explosive mixtures with air. |
| Explosive Limit | 8.3% |
| Refractive Index | 1.3518 |
| Physical and Chemical Properties | Colorless, odorless, flammable and explosive gas, boiling point about -11 ℃. The vapor pressure is about 0.39MPa at 21 °c. |
| Use | It is mainly used to produce isooctane by alkylation with isobutylene, as a gasoline octane number improver, and can also be used as a refrigerant |
ISOBUTANE - Risk and Safety
| Hazard Symbols | F+ - Highly flammable |
| Risk Codes | 12 - Extremely Flammable |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. |
| UN IDs | UN 1969 2.1 |
| WGK Germany | - |
| RTECS | TZ4300000 |
| FLUKA BRAND F CODES | 4.5-31 |
| Hazard Class | 2.1 |
ISOBUTANE - Nature
Open Data Verified Data
colorless, easily liquefied combustible gas. The flammability limit in air is 1.8% to 8.4% by volume. The spontaneous combustion temperature was 462 ℃.
Last Update：2024-01-02 23:10:35
ISOBUTANE - Hair-making
Open Data Verified Data
using industrial isobutane as raw material (content of 82% ~ 91%), three stage adsorption process was adopted. The primary adsorber removes impurities such as C2, C3, n-butane and 1-butene, the secondary adsorber removes isobutene, and further removes C2 and C in the tertiary adsorber. Hydrocarbon impurities, product purity greater than 99.99%.
Last Update：2022-01-01 09:31:40
ISOBUTANE - Use
Open Data Verified Data
high purity isobutane is mainly used as standard gas and special standard mixture.
Last Update：2022-01-01 09:31:40
ISOBUTANE - Safety
Open Data Verified Data
isobutane is a simple asphyxiant because of its low toxicity. Strong flammability. Storage should be well ventilated and kept away from heat and fire sources. Not with oxygen, chlorine or other strong oxidation or combustible cylinder storage.
Last Update：2022-01-01 09:31:41
ISOBUTANE - Reference Information
| Henry's Law Constant | 1.171 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | isobutane is a colorless flammable gas, slightly soluble in water, and stable in nature. It can form an explosive mixture with air, with an explosion limit of 1.9 to 8.4% by volume, and is present in oil and natural gas. It is produced by cracking petroleum in industry, and can also be obtained by isomerization of n-butane. Isobutane is mainly used for the preparation of isooctane as a gasoline octane number improver; It is also used as a refrigerant. isobutane is a hydrocarbon refrigerant that is a colorless flammable gas. Specific gravity 0.5510 (25 °c), melting point -145 °c, boiling point -11.73 °c. It is found in petroleum gas, natural gas and cracked gas. Isobutane can also be produced by isomerization of n-butane. Slightly soluble in water, chemical stability, and the formation of explosive mixture of air, the explosion limit of 1.9% ~ 8.4% (volume). |
| Chemical application | There are four main ways to utilize isobutane in chemical industry:(1) alkylation for producing alkylated gasoline; dehydrogenation to isobutene;(2) steam cracking to produce ethylene and propylene;(3) co-oxidation of isobutane and propylene to produce propylene oxide and tert-butanol;(4) isobutane and formaldehyde produce butadiene (the technology has been industrialized in Russia). In addition to the domestic isobutane is directly used as civil fuel, most of them are used for alkylation production of vehicle fuel oil blending components, other chemical utilization is rarely used. Co-oxidation of isobutane and propylene to produce propylene oxide and tert-butyl alcohol, the advantage is no environmental pollution, but the investment is higher, and the domestic production of propylene oxide commonly used chlorohydrin method, the method of environmental pollution is extremely serious, its advantage is that the investment is relatively small. |
| Application | isobutane is mainly used for the preparation of isooctane by alkylation with isobutene as a gasoline octane number improver. Can also be used as a refrigerant. |
| toxicity | GRAS(FDA,§ 184.:1165,2000). |
| usage limit | GMP(FDA,§ 184.1165,2000). |
| Use | aerosol; Aerator. It is mainly used as the standard gas for analysis and testing instruments in petrochemical enterprises It is mainly used for the production of isooctane by alkylation with isobutylene, as a modifier of gasoline octane number, it can also be used as a refrigerant mainly for the production of isooctane by alkylation with isobutene, and as a gasoline octane number improver. Isobutylene and propylene can be produced by cracking. Alkylation with isobutylene, propylene can be alkylated gasoline. Methacrylic acid, acetone, methanol and the like can be prepared. It can also be used as a refrigerant. |
| production method | is present in petroleum gas, natural gas, and cracked gas. From the petroleum cracking process in the carbon four fraction, obtained by separation. obtained by fractionation of natural gas followed by adsorption or freezing with a surfactant. |
| category | hazardous gas |
| toxicity grade | low toxicity |
| Acute toxicity | inhalation-rat LC50:57000PPM/15 min; Inhalation-mouse LCL0:1041000 mg/m3/2 h |
| explosive hazard characteristics | open flame mixed with air, thermal explosion |
| flammability hazard characteristics | open flame, combustible under heat; Combustion-induced smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Light loading and light unloading; And oxygen, separate storage of |
| fire extinguishing agent | water mist, carbon dioxide |
| Occupational Standard | TWA 1430 mg/m3; Tel 1800 mg/m3 |
| spontaneous combustion temperature | 860 ° F. |
| DOT Classification | 2.1 (Flammable gas) |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:11
Supplier List
Spot supply
Product Name: Isobutane Request for quotationCAS: 75-28-5
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Isobutane Request for quotationCAS: 75-28-5
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Isobutane Request for quotation
CAS: 75-28-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 75-28-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Product Name: Isobutane Request for quotation
CAS: 75-28-5
Tel: 0530-5158668
Email: xlhg102@sirloong.com
Mobile: 15153016378
QQ: 694355302
Send QQ message
CAS: 75-28-5
Tel: 0530-5158668
Email: xlhg102@sirloong.com
Mobile: 15153016378
QQ: 694355302
Spot supply
Product Name: Isobutane Request for quotationCAS: 75-28-5
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Isobutane Request for quotationCAS: 75-28-5
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Isobutane Request for quotation
CAS: 75-28-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 75-28-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Product Name: Isobutane Request for quotation
CAS: 75-28-5
Tel: 0530-5158668
Email: xlhg102@sirloong.com
Mobile: 15153016378
QQ: 694355302Send QQ message
CAS: 75-28-5
Tel: 0530-5158668
Email: xlhg102@sirloong.com
Mobile: 15153016378
QQ: 694355302
View History