2,2-Dimethylbutane
- Product Name
- 2,2-Dimethylbutane
- CAS No.
- 75-83-2
- Chemical Name
- 2,2-Dimethylbutane
- Synonyms
- NEOHEXANE;Trimethylpropane;neobutan;NEOBUTANE;(CH3)3CCH2CH3;2.2-DiMethylbu;tert-Butylethane;2-Ethylisobutane;2,2-dimethyl-butan;3,3-DIMETHYLBUTANE
- CBNumber
- CB7280708
- Molecular Formula
- C6H14
- Formula Weight
- 86.18
- MOL File
- 75-83-2.mol
2,2-Dimethylbutane Property
- Melting point:
- −100 °C(lit.)
- Boiling point:
- 50 °C(lit.)
- Density
- 0.649 g/mL at 25 °C(lit.)
- vapor density
- 2.97 (vs air)
- vapor pressure
- 5.35 psi ( 20 °C)
- refractive index
- n20/D 1.369(lit.)
- Flash point:
- <−30 °F
- storage temp.
- Flammables area
- solubility
- In methanol: 590 and 800 g/L at 5 and 10 °C, respectively. Miscible at higher temperatures (Kiser et al., 1961). Miscible with other aliphatic hydrocarbons, e.g., pentane, hexane, heptane, etc.
- pka
- >14 (Schwarzenbach et al., 1993)
- form
- Liquid
- color
- Clear colorless to slightly yellow
- Odor Threshold
- 20ppm
- explosive limit
- ~7.7%
- Water Solubility
- insoluble
- BRN
- 1730736
- Henry's Law Constant
- 1.69(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981)
- Dielectric constant
- 1.8700000000000001
- Exposure limits
- ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).
- Stability:
- Stable, but may be moisture sensitive. Highly flammable. Incompatible with strong oxidizing agents.
- CAS DataBase Reference
- 75-83-2(CAS DataBase Reference)
- NIST Chemistry Reference
- Butane, 2,2-dimethyl-(75-83-2)
- EPA Substance Registry System
- 2,2-Dimethylbutane (75-83-2)
Safety
- Hazard Codes
- F,Xn,N
- Risk Statements
- 11-38-51/53-65-67
- Safety Statements
- 9-16-29-33-61-62
- RIDADR
- UN 1208 3/PG 2
- WGK Germany
- 3
- RTECS
- EJ9300000
- Autoignition Temperature
- 797 °F
- HazardClass
- 3
- PackingGroup
- II
- HS Code
- 29011000
- Hazardous Substances Data
- 75-83-2(Hazardous Substances Data)
- Toxicity
- Reported as an impurity (0.2 wt %) in 99.0–99.7 wt % 2,3-dimethylbutane (Chevron Phillips, 2004).
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H225Highly Flammable liquid and vapour
H304May be fatal if swallowed and enters airways
H315Causes skin irritation
H336May cause drowsiness or dizziness
H411Toxic to aquatic life with long lasting effects
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P273Avoid release to the environment.
P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P331Do NOT induce vomiting.
N-Bromosuccinimide Price
- Product number
- 39730
- Product name
- 2,2-Dimethylbutane
- Purity
- analytical standard
- Packaging
- 5ml
- Price
- $74.2
- Updated
- 2024/03/01
- Product number
- 39730
- Product name
- 2,2-Dimethylbutane
- Purity
- analytical standard
- Packaging
- 10ml
- Price
- $140
- Updated
- 2024/03/01
- Product number
- D0689
- Product name
- 2,2-Dimethylbutane
- Purity
- >97.0%(GC)
- Packaging
- 25mL
- Price
- $73
- Updated
- 2024/03/01
- Product number
- D0689
- Product name
- 2,2-Dimethylbutane
- Purity
- >97.0%(GC)
- Packaging
- 100mL
- Price
- $229
- Updated
- 2024/03/01
- Product number
- D462315
- Product name
- 2,2-Dimethylbutane
- Packaging
- 5mL
- Price
- $65
- Updated
- 2021/12/16
2,2-Dimethylbutane Chemical Properties,Usage,Production
Chemical Properties
2,2-dimethylbutane is the chain isomeric form of hexane. It is a colorless and flammable liquid with a specific gravity of 0.6444. Insoluble in water, miscible with alcohol, ether, acetone, benzene and petroleum ether. The solubility is similar to that of hexane and 2-methylpentane.
Physical properties
Clear, colorless liquid with a mild petroleum-like odor. Liquid quickly evaporates and forms conbustible fumes. An odor threshold concentration of 20 ppmv was reported by Nagata and Takeuchi (1990).
Uses
2,2-Dimethylbutane is an acyclic alkane. Its Research Octane Number (RON) has been reported to be 91.8. It is used to Component of high-octane motor and aviation fuels, intermediate for agricultural chemicals.
Application
2,2-Dimethylbutane may be employed as probe to investigate the nature of possible active sites in supported metal catalysts.
Some of the reported applications of 2,2-dimethylbutane include:
Palladium-catalyzed radical oxidative alkoxycarbonylation to prepare various alkyl carboxylates.
Iridium-iron-catalyzed tandem dehydrogenation-isomerization-hydrosilylation to synthesize corresponding silane.
Preparation
2,2-Dimethylbutane can be synthesised by the hydroisomerisation of 2,3-dimethylbutane using an acid catalyst.
By the thermal or catalytic union (alkylation) of ethylene and isobutane, both recovered from refinery gases.
Production Methods
2,2-Dimethylbutane is produced from crude oil, natural liquid gases, and petroleum refining processes.
General Description
Colorless liquid with an odor of gasoline. Less dense than water and insoluble in water. Hence floats on water. Irritating vapor. Flash point -54°F.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
2,2-Dimethylbutane may be incompatible with strong oxidizing agents like nitric acid. Charring may occur followed by ignition of unreacted material and other nearby combustibles. In other settings, mostly unreactive. Not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, burns exothermically to produce carbon dioxide and water.
Hazard
Highly flammable, dangerous fire and explosion risk, explosion limits 1.2–7%
Health Hazard
Inhalation causes dizziness, nausea, and vomiting; concentrated vapor may cause unconsciousness and collapse. Contact with liquid causes irritation of eyes; repeated contact may produce irritation of skin. Ingestion causes irritation of stomach. Aspiration causes severe lung irritation, rapidly developing pulmonary edema, and central nervous system excitement followed by depression.
Safety Profile
Probably an irritant and narcotic in high concentration. A very dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidzing materials. Keep away from heat or open flame. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.
Environmental Fate
Photolytic. Reported photooxidation rate constants for the reaction of 2,2-dimethylbutane with
OH radicals at 297, 299, and 300 K are 2.59 x 10-12, 6.16 x 10-12, and 2.59 x 10-12
cm3/molecule?sec, respectively (Atkinson, 1985, 1990).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. 2,2-
Dimethylbutane will not hydrolyze because it has no hydrolyzable functional group.
Purification Methods
Distil it azeotropically with MeOH, then wash it with water, dry (Na2SO4) it, and distil it. [Beilstein 1 IV 367.]
2,2-Dimethylbutane Preparation Products And Raw materials
Raw materials
Preparation Products
2,2-Dimethylbutane Suppliers
- Tel
- 021-61259108 18621169097
- Fax
- 86-21-61259102
- market03@meryer.com
- Country
- China
- ProdList
- 40240
- Advantage
- 62
- Tel
- 400-6106006
- Fax
- 021-67582001/03/05
- saleschina@alfa-asia.com
- Country
- China
- ProdList
- 30132
- Advantage
- 84
- Tel
- 021-67121386
- Fax
- 021-67121385
- Sales-CN@TCIchemicals.com
- Country
- China
- ProdList
- 24539
- Advantage
- 81
- Tel
- Country
- China
- ProdList
- 42982
- Advantage
- 64
- Tel
- 400-1166-196 18981987031
- Fax
- 028-84555506 800101999
- cdhxsj@163.com
- Country
- China
- ProdList
- 11726
- Advantage
- 57
- Tel
- 86-21-63210123
- Fax
- 86-21-63290778 86-21-63218885
- sj_scrc@sinopharm.com
- Country
- China
- ProdList
- 9823
- Advantage
- 79
- Tel
- +86 (573) 82222445 (0)18006601000 452520369
- Fax
- +86 (573) 82222643
- sales@maya-r.com
- Country
- China
- ProdList
- 11714
- Advantage
- 57
- Tel
- 021-021-021-67601398-809-809-809 15221380277
- Fax
- 021-57711696
- marketing_china@spectrumchemical.com
- Country
- China
- ProdList
- 9664
- Advantage
- 60
- Tel
- 4008-755-333 18080918076
- Fax
- 028-86757656
- 800078821@qq.com
- Country
- China
- ProdList
- 9725
- Advantage
- 55
- Tel
- 86-21-34053660
- Fax
- 86-21-34053661
- sale@labgogo.com
- Country
- China
- ProdList
- 9872
- Advantage
- 52
- Tel
- 800-810-5118
- Fax
- +86-10-84193589
- cnchemical@thermofisher.com
- Country
- China
- ProdList
- 17779
- Advantage
- 75
- Tel
- 400-810-7969 010-59572699
- Fax
- 010-59572688
- ningzi.li@inno-chem.com.cn
- Country
- China
- ProdList
- 6139
- Advantage
- 55
- Tel
- 4009209199
- Fax
- 86-021-52271987
- sales@9dingchem.com
- Country
- China
- ProdList
- 22519
- Advantage
- 55
- Tel
- 18521735133 18521732826;
- Fax
- 021-50323701
- market@aladdin-e.com
- Country
- China
- ProdList
- 25015
- Advantage
- 65
- Tel
- +86-28-85122536 85324413
- Fax
- +86-28-85326443
- market@astatech.cn
- Country
- China
- ProdList
- 8033
- Advantage
- 55
- Tel
- 400-1166-196 13458535857
- Fax
- QQ：800101999
- cdhxsj@163.com
- Country
- China
- ProdList
- 13358
- Advantage
- 58
- Tel
- 17501653713 17501653715
- xingui2022@126.com
- Country
- China
- ProdList
- 10033
- Advantage
- 58
- Tel
- 021-64609169 18901607656
- Fax
- 021-64609160
- greensnown@163.com
- Country
- China
- ProdList
- 9911
- Advantage
- 50
- Tel
- 13096311329 028-88469284 616445927
- Fax
- 028-88469284
- 616445927@qq.com
- Country
- China
- ProdList
- 2876
- Advantage
- 50
- Tel
- 021-61415566 800-8193336
- orderCN@merckgroup.com
- Country
- China
- ProdList
- 51471
- Advantage
- 80
- Tel
- 028-88469284 18000562381
- rzbtsj@163.com
- Country
- China
- ProdList
- 9958
- Advantage
- 56
- Tel
- 021-52907766-8042
- Fax
- 021-52906523
- Country
- China
- ProdList
- 9947
- Advantage
- 58
- Tel
- 4009903999 13395398332
- Fax
- 0539-6365991
- sales@xiyashiji.com
- Country
- China
- ProdList
- 20810
- Advantage
- 60
- Tel
- 400-1166-196 18502815961
- Fax
- QQ：800101999
- cdhxsj@163.com
- Country
- China
- ProdList
- 14623
- Advantage
- 60
- Tel
- 0751-2886750 13927877953
- Fax
- 0751-2886750
- 3005811397@qq.com
- Country
- China
- ProdList
- 13351
- Advantage
- 58
- Tel
- 020-84383047
- Fax
- 020-84380294
- sales@jhd.com.cn
- Country
- China
- ProdList
- 9190
- Advantage
- 65
- Tel
- 021-021-52271985 17721149837
- Fax
- +86 (21) 52271987
- sales@9dingchem.com
- Country
- China
- ProdList
- 19806
- Advantage
- 60
- Tel
- 400-400-1332688 18019345275
- Fax
- 400-133-2688
- amy@rhawn.cn
- Country
- China
- ProdList
- 15503
- Advantage
- 58
- Tel
- 400-400-400-9004166 18616739031
- 3007523370@qq.com
- Country
- China
- ProdList
- 52712
- Advantage
- 58
- Tel
- 010-52889049
- 2250970673@qq.com
- Country
- CHINA
- ProdList
- 1133
- Advantage
- 58
- Tel
- +86-400-002-6226 13028896684
- sales@rrkchem.com
- Country
- China
- ProdList
- 55894
- Advantage
- 58
- Tel
- 0551-65418671
- Fax
- 0551-65418697
- sales@tnjchem.com
- Country
- China
- ProdList
- 34572
- Advantage
- 58
- Tel
- 86-21-51086038
- Fax
- 86-21-51861608
- chemwill_asia@126.com
- Country
- CHINA
- ProdList
- 23931
- Advantage
- 58
- Tel
- 0751-2886766 13927870850
- Fax
- 0751-2886756
- 3001267247@qq.com
- Country
- China
- ProdList
- 10003
- Advantage
- 58
- Tel
- 86-13657291602
- Fax
- 027-59338440
- linda@hubeijusheng.com
- Country
- CHINA
- ProdList
- 22968
- Advantage
- 58
- Tel
- 021-51698675
- jiejiegroup@126.com
- Country
- China
- ProdList
- 4112
- Advantage
- 58
- Tel
- +86-0371-86658258 15093356674;
- Fax
- 0086-371-86658258
- factory@coreychem.com
- Country
- China
- ProdList
- 29826
- Advantage
- 58
- Tel
- +86-029-81138252 +86-18789408387
- Fax
- 029-88380327
- 1057@dideu.com
- Country
- China
- ProdList
- 3244
- Advantage
- 58
- Tel
- 18501792038; 18501792038
- shanpel@anpel.com.cn
- Country
- China
- ProdList
- 9614
- Advantage
- 58
- Tel
- 2537653158 16621191650
- Fax
- QQ 2537653158
- 2537653158@qq.com
- Country
- China
- ProdList
- 7372
- Advantage
- 58
- Tel
- 400-9019001
- Country
- China
- ProdList
- 15070
- Advantage
- 58
- Tel
- 021-61109150
- Fax
- 021-61105897
- sales@tcisct.com
- Country
- China
- ProdList
- 31163
- Advantage
- 58
- Tel
- 027-83238443 13343438265
- Fax
- 027-83238443
- 1569708153@qq.com
- Country
- China
- ProdList
- 4994
- Advantage
- 58
- Tel
- 15229059051
- 1027@dideu.com
- Country
- China
- ProdList
- 9942
- Advantage
- 58
- Tel
- 0513-66017706 18551496367
- 2186883463@qq.com
- Country
- China
- ProdList
- 5000
- Advantage
- 58
- Tel
- 18626450290
- yftan@aikonchem.com
- Country
- China
- ProdList
- 10718
- Advantage
- 58
- Tel
- 0724-4355788 19307246857
- 15327516800@163.com
- Country
- China
- ProdList
- 797
- Advantage
- 58
- Tel
- 153-37111468; 15337111468
- 3564510578@qq.com
- Country
- China
- ProdList
- 4923
- Advantage
- 58
- Tel
- 027-83261126 18971318572
- 2969475037@qq.com
- Country
- China
- ProdList
- 5001
- Advantage
- 58
- Tel
- 18516304666
- christina.feng@cpachem-sh.com
- Country
- China
- ProdList
- 3101
- Advantage
- 58
View Lastest Price from 2,2-Dimethylbutane manufacturers
- Product
- 2,2-Dimethylbutane 75-83-2
- Price
- US $100.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-25
- Product
- 2,2-dimethyl butane 75-83-2
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20T
- Release date
- 2020-01-10
- Product
- 2,2-Dimethylbutane 75-83-2
- Price
- US $1.00/g
- Min. Order
- 1g
- Purity
- Min98%HPLC
- Supply Ability
- g/kg/ton
- Release date
- 2020-01-09