ChemicalBook > CAS DataBase List > ISOBUTANE

ISOBUTANE

ISOBUTANE Structure
ISOBUTANE
  • CAS No.75-28-5
  • Chemical Name:ISOBUTANE
  • Synonyms:r600a;R 600a;i-Butane;Isobutan;methyl-2;ISOBUTANE;iso-C4H10;tert-Butane;Methylpropane;2-METHYLPROANE
  • CBNumber:CB4310831
  • Molecular Formula:C4H10
  • Formula Weight:58.12
  • MOL File:75-28-5.mol
ISOBUTANE Property
  • Melting point: :−160 °C(lit.)
  • Boiling point: :−12 °C(lit.)
  • Density  :2.064 g/mL at 25 °C(lit.)
  • vapor density  :2.01 (21 °C, vs air)
  • vapor pressure  :72.2 psi ( 37.7 °C)
  • refractive index  :1.3518
  • Flash point: :-83 °C
  • color  :Colorless, very flammable gas with a faint odor
  • explosive limit :8.3%
  • Water Solubility  :48.9 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1963, 1966)
  • BRN  :1730720
  • Henry's Law Constant :1.171 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975)
  • Exposure limits :NIOSH REL: TWA 800 ppm (1,900 mg/m3).
  • Stability: :Stable. Extremely flammable. May form explosive mixtures with air.
  • InChIKey :NNPPMTNAJDCUHE-UHFFFAOYSA-N
  • CAS DataBase Reference :75-28-5(CAS DataBase Reference)
Safety
  • Hazard Codes  :F+
  • Risk Statements  :12
  • Safety Statements  :9-16
  • RIDADR  :UN 1969 2.1
  • WGK Germany  :-
  • RTECS  :TZ4300000
  • F  :4.5-31
  • Autoignition Temperature :860 °F
  • HazardClass  :2.1
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements
  • H220:Extremely flammable gas
  • H280:Contains gas under pressure; may explode if heated
  • Precautionary statements
  • P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
  • P377:Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
  • P403:Store in a well-ventilated place.
  • P410:Protect from sunlight.
NFPA 704
Diamond
4
1 0
Value
Health
Hazard
1
Description
Exposure would cause irritation with only minor residual injury (e.g. acetone, sodium bromate, potassium chloride)
Value
Flammability
Hazard
4
Description
Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Includes pyrophoric substances. Flash point below room temperature at 22.8 °C (73 °F). (e.g. acetylene, propane, hydrogen gas)
Value
Instability
Hazard
0
Description
Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2)
Value
Special
Hazard
Description
ISOBUTANE Price More Price(3)
  • Brand: Sigma-Aldrich
  • Product number: 295450
  • Product name : 2-Methylpropane
  • Purity: 99%
  • Packaging: 100g
  • Price: $134
  • Updated: 2018/11/20
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 295450
  • Product name : 2-Methylpropane
  • Purity: 99%
  • Packaging: 350g
  • Price: $176
  • Updated: 2018/11/20
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 539821
  • Product name : 2-Methylpropane
  • Purity: 99.995%
  • Packaging: 170g
  • Price: $477
  • Updated: 2018/11/20
  • Buy: Buy

ISOBUTANE Chemical Properties,Usage,Production

  • Chemical Properties colourless odourless gas (or colourless cryogenic liquid)
  • Uses Organic synthesis, refrigerant, motor fuels, aerosol propellant, synthetic rubber, instrument calibration fluid.
  • Uses Isobutane occurs in petroleum, natural gas,and petroleum cracking products. It is usedas a fuel gas or a liquefied petroleum gas. Itis also used in organic synthesis.
  • Definition ChEBI: An alkane that is propane substituted by a methyl group at position 2.
  • General Description ISOBUTANE is a colorless gas with a faint petroleum-like odor. ISOBUTANE is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. ISOBUTANE is easily ignited. The vapors are heavier than air. Any leak can either be liquid or vapor. ISOBUTANE can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket.
  • Air & Water Reactions Highly flammable.
  • Reactivity Profile ISOBUTANE is incompatible with the following: Strong oxidizers (e.g., nitrates & perchlorates), chlorine, fluorine, (nickel carbonyl + oxygen) .
  • Hazard Highly flammable, dangerous fire and explosive risk; explosive limits in air 1.9–8.5%.
  • Health Hazard Central nervous system depression ranging from dizziness and incoordination to anesthesia and respiratory arrest, depending on concentration and extent of inhalation. Irregular heartbeat is rare but is a dangerous complication at anesthetic levels.
  • Health Hazard Isobutane, like other saturated aliphatic alkanes,is nontoxic. It is an asphyxiate. Exposureto high concentrations of 1% in air maycause narcosis and drowsiness. Other thanthis, there is no report of any adverse healtheffect from exposure to this gas.
  • Fire Hazard EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Methane (UN1971) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.) Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.
  • Safety Profile An asphyxiant. A common air contaminant. A very dangerous fire and explosion hazard when exposed to heat, flame, or oxidizers. To fight fire, stop flow of gas. When heated to decomposition it emits acrid smoke and irritating fumes.
  • Source California Phase II reformulated gasoline contained 2-methylpropane at a concentration of 1.04 g/kg. Gas-phase tailpipe emission rate from gasoline-powered automobiles equipped with a catalytic converter was 130 μg/km (Schauer et al., 2002).
  • Environmental Fate Photolytic. Based upon a photooxidation rate constant of 2.34 x 10-12 cm3/molecule?sec with OH radicals in summer daylight, the atmospheric lifetime is 59 h (Altshuller, 1991). At atmospheric pressure and 300 K, Darnall et al. (1978) reported a rate constant of 2.52 x 10-12 cm3/molecule?sec for the same reaction. Rate constants of 1.28 x 10-9 and 6.03 x 10-12 L/molecule?sec were reported for the reaction of 2-methylpropane with OH radicals in air at 300 and 296 K, respectively (Greiner, 1967, 1970). Rate constants of 7.38 x 10-13 and 6.50 x 10-17 cm3/molecule?sec were reported for the reaction of 2-methylpropane with OH and NO3, respectively (Sablji? and Güsten, 1990).
    Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. 2- Methylpropane will not hydrolyze because it does not contain a hydrolyzable functional group.
  • Solubility in organics (mole fraction):
    In 1-butanol: 0.0897, 0.0491, and 0.0308 at 25, 30, and 70 °C, respectively; chlorobenzene: 0.157, 0.0837, and 0.0542 at 25, 30, and 70 °C, respectively; and octane: 0.301, 0.161, and 0.101 at 25, 30, and 70 °C, respectively (Hayduk et al., 1988).
    In 1-butanol: 0.0889 and 0.0486 at 25 and 70 °C, respectively; in chlorobenzene: 0.162 and 0.0853 at 25 and 70 °C, respectively; and in carbon tetrachloride: 0.238 and 0.132 at 25 and 70 °C, respectively (Blais and Hayduk, 1983).
  • Purification Methods Olefins and moisture can be removed by passage at 65o through a bed of silica-alumina catalyst which has previously been evacuated at about 400o. Alternatively, water and CO2 can be removed by passage through P2O5, then asbestos impregnated with NaOH. Treatment with anhydrous AlBr3 at 0o then removes traces of olefins. Inert gases can be separated by freezing the isobutane at -195o and evacuating out the system. [Beilstein 1 IV 282.]
ISOBUTANE Preparation Products And Raw materials
Raw materials
Preparation Products
ISOBUTANE Suppliers
Global(84)Suppliers
  • Supplier:
    Mainchem Co., Ltd.
  • Tel:+86-0592-6210733
  • Fax:+86-0592-6210733
  • Email:sales@mainchem.com
  • Country:CHINA
  • ProdList:32447
  • Advantage:55
  • Supplier:
    Hangzhou FandaChem Co.,Ltd.
  • Tel:0086 158 5814 5714 (Mobile; WhatsApp; Telegram)
  • Fax:+86-571-56059825
  • Email:fandachem@gmail.com
  • Country:CHINA
  • ProdList:2884
  • Advantage:55
  • Supplier:
    Fluoropharm Co., Ltd.
  • Tel:+8613336034509
  • Fax:
  • Email:sales@fluoropharm.com
  • Country:CHINA
  • ProdList:735
  • Advantage:60
  • Supplier: Meryer (Shanghai) Chemical Technology Co., Ltd.
  • Tel:+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
  • Fax:+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)
  • Email:sh@meryer.com
  • Country:China
  • ProdList:40269
  • Advantage:62
  • Supplier: Energy Chemical
  • Tel:021-58432009 / 400-005-6266
  • Fax:021-58436166-800
  • Email:info@energy-chemical.com
  • Country:China
  • ProdList:44025
  • Advantage:61
75-28-5, ISOBUTANERelated Search:
  • 2-METHYLPROPANE
  • ISOBUTANE
  • GEIGER FLOW GAS
  • 2-METHYLPROPANE, 99.995%
  • 2-METHYLPROPANE, FUEL CYLINDER FOR SETAF LASH (1EA=1.3OZ CYLINDER)
  • 2-METHYLPROPANE, PRESSURE TIN WITH 250 M L (NET ~140 G)
  • Isobutane(incylinderwithoutvalve)
  • Isobutaneincylinderwithoutvalve
  • Isobutane 99,99% (R600a)
  • ISOBUTANE HC-600A
  • 2-Methylpropane,high purity
  • Isobutane (in cylinder without valve) [To use this product charged in cylinder, a valve is required which is sold separately (Product Code:V0030)]
  • 2-METHYLPROANE
  • 2-Methylpropane,Isobutane
  • Purifrigor Iso 3
  • 1,1-Dimethylethane
  • 2-Methylpropan
  • 2-methyl-propan
  • a31(hydrocarbon)
  • i-Butane
  • Isobutan
  • Isobutane mixtures
  • isobutane(dot)
  • isobutane,highpurity
  • iso-C4H10
  • methyl-2
  • methyl-2propane
  • methyl-2propane(isobutane)
  • Methylpropane
  • Propane, 2-methyl-
  • Propane, 2-methyl-isobutane
  • Propane,2-methyl-
  • R 600a
  • r600a
  • tert-Butane
  • Trimethylmethane
  • 75-28-5
  • CH3CHCH3CH3
  • 75285
  • CHCH32CH3
  • Analytical Standards
  • Alphabetic
  • Analytical Chromatography Product Catalog
  • Gas Cylinders
  • Hydrocarbons (Low Boiling point)
  • Compressed and Liquefied Gases
  • META - METH
  • Synthetic Reagents
  • refrigerants
  • Organics
  • Refrigerant
  • Gas Cylinders
  • Hydrocarbons (Low Boiling point)
  • Synthetic Organic Chemistry
  • Alphabetic
  • Analytical Standards
  • Analytical/Chromatography
  • Chemical Synthesis