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Isopentane

Isopentane structure

CAS No:
78-78-4
Formula:
C5H12
Chemical Name:
Isopentane
Synonyms:
Butane,2-methyl-;2-Methylbutane;Isopentane;iso-Pentane;1,1,2-Trimethylethane;Methylbutane;Borger Isopentane;Exxsol Isopentane S;NSC 119476;R 601A;68923-44-4;92046-46-3;1326305-74-1
Categories:
Cosmetic Ingredient > Dissolving Agent

Description

colourless liquid with a characteristic smell 2-Methylbutane (isopentane), C5H12, is a flammable liquid and exhibits physical properties very similar to those of pentane. It has been detected in urban air.

Isopentane Basic Attributes

Molecular Weight：

72.15

Exact Mass：

72.15

EC Number：

201-142-8

HScode：

2901100000

Characteristics

PSA：

XLogP3：

2.3

Appearance：

Clear colorless Liquid

Density：

0.6201 g/cm³ @ Temp: 20 °C

Melting Point：

-159.9 °C

Boiling Point：

27.8 °C @ Press: 760 Torr

Flash Point：

−51 °C

Refractive Index：

n20/D 1.354(lit.)

Water Solubility：

Miscible with water, hydrocarbons, oils, alcohol and ether.

Storage Conditions：

2-8°C

Vapor Pressure：

11.17 psi ( 20 °C)

Vapor Density：

2.6 (vs air)

Toxicity：

Inhalation-Mouse LCL0: 419000 mg/m3/ 2 hours

Flammability characteristics：

Inflammable in case of open flame, high temperature, oxidant; burning produces irritating smoke

Explosive limit：

1.3-7.6%(V)

Odor：

Pleasant odor

Safety Information

Packing level：

Hazard category：

Transport codes：

UN 1265 3/PG 1

wgk germany：

hazard class code：

12-51/53-65-66-67

safety instructions：

9-16-29-33-61-62

RTECS Number：

EK4430000

Marks：

F+,Xn,N

Storage features：

The warehouse is ventilated, low temperature and dry; stored separately from oxidants and acids

Explosive characteristics：

Explosive when mixed with air

Stability/Shelf Life：

Stable. Extremely flammable. Incompatible with strong oxidizing agents. Vapour-air mixtures explosive in certain proportions. Incompatible with rubber, various plastics. The vapour, being heavier than air, may roll over surfaces and collect in low points. Note low flash point.

Precautionary statement(s)：

P210-P261-P273-P301 + P310-P331

Hazard Statements：

H224-H304-H336-H411

Toxicity

Toxicity class：

practically nontoxic

Isopentane Use and Manufacturing

Methods of Manufacturing

Separated from petroleum cracked products or platinum reformed oil. Industrial-grade 2-methylbutane contains impurities such as alkane, naphthene, unsaturated hydrocarbons and moisture with similar boiling points. Unsaturated hydrocarbons are washed and removed with concentrated sulfuric acid; water is removed with dehydrating agents such as anhydrous calcium chloride, phosphorus pentoxide or metallic sodium, or molecular sieve dehydration can also be used; and finally fractionated and refined, and the distillate is purified by high temperature activated silica gel adsorption column Remove traces of linear hydrocarbon impurities. Using pentane as a raw material and catalytic isomerization in a liquid phase at 95°C, 2-methylbutane can be obtained.

Uses

It can be used as solvent for catalyst in polyethylene production, foaming agent for expandable polystyrene, foaming agent for polyurethane foam system, deasphalting solvent, etc.

Computed Properties

Molecular Weight:72.15
XLogP3:2.6
Rotatable Bond Count:1
Exact Mass:72.093900383
Monoisotopic Mass:72.093900383
Heavy Atom Count:5
Complexity:14
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Price Analysis

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Guide of Isopentane

Description
Basic Attributes
Characteristics
Safety Information
Toxicity
Use and Manufacturing
Computed Properties
Price Analysis
Recommended Suppliers
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