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4-Methyl-1-pentene

4-Methyl-1-pentene structure

4-Methyl-1-pentene 

structure
  • CAS No:

    691-37-2

  • Formula:

    C6H12

  • Chemical Name:

    4-Methyl-1-pentene

  • Synonyms:

    1-Pentene,4-methyl-;4-Methyl-1-pentene;Isobutylethene;4-Methylpentene-1;NSC 15091;4-Methyl-1-amylene;44390-46-7

  • Categories:

    Flavors and Fragrances  >  Synthetic Fragrances

Description

clear colourless liquid


4-methyl-1-pentene is a colorless liquid. (USCG, 1999)


4-methyl-1-pentene is a colorless liquid. (USCG, 1999)

4-Methyl-1-pentene Basic Attributes

84.16

84.16

1731096

211-720-1

X10HRJ2Y7W

15091

1993

DTXSID3061001

2901299090

Characteristics

0

2.21850

Colorless Liquid

0.6718 g/cm3 @ Temp: 20 °C

-153.6 °C

53.9 °C

−25 °F

n20/D 1.382(lit.)

soluble in alcohol, benzene, chloroform, petroleum ether. Insoluble in water.

0-6°C

4.45 psi ( 20 °C)

>1 (vs air)

Highly flammable. Water insoluble.

Hydrocarbons, Aliphatic Unsaturated

Highly Flammable

The unsaturated aliphatic hydrocarbons, such as 4-METHYL-1-PENTENE, are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions.

Safety Information

II

3

UN 3295 3/PG 2

3

11-65

9-16-29-33-62

F,Xn

P210-P301 + P310-P331

H225-H304

Special Hazards of Combustion Products: Vapors may travel considerable distance to source of ignition and flashback. Container explosion may occur under fire conditions. Forms explosive mixtures in air. (USCG, 1999)

|Danger|H224 (20.18%): Extremely flammable liquid and vapor [Danger Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P310, P301+P312, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P312, P321, P330, P331, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, and P501|Aggregated GHS information provided by 114 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H225: Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501

Fire Extinguishing Agents Not to Be Used: Water may be ineffective. Fire Extinguishing Agents: Carbon dioxide, dry chemical, alcohol foam. (USCG, 1999)

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet). FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2016)

Wear self-contained breathing apparatus, rubber boots, heavy rubber gloves and eye protection. (USCG, 1999)

Drug Information

Harmful if inhaled or swallowed. Vapor or mist is irritating to the eyes, mucous membrane and upper respiratory tract. Causes skin irritation. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting. (USCG, 1999)

INHALATION: Call for medical aid. Remove the victim to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. EYES: Separate the eyelids with the fingers and flush with plenty of water. SKIN: Immediately wash with soap and copious amounts of water. (USCG, 1999)

poly(4-methyl-1-pentene)

4-Methyl-1-pentene Use and Manufacturing

Methods of Manufacturing

Derived from the dimerization of propylene. Propylene reacts with metals to form organic potassium compounds, which act as catalysts in the dimerization reaction. The dimerization reaction is carried out under the conditions of 160°C and about 6MPa. The single-pass conversion of propylene is about 48%, and 4-methyl-1-pentene is obtained with a yield of about 78%.

Uses

This product is a monomer of the new synthetic material poly 4-methyl-1-pentene. It can be used as an intermediate in organic synthesis to prepare methyl isobutyl ketone, 2-isobutyl-6-methyl heptene and iso Glutaric and so on.

1-Pentene, 4-methyl-, homopolymer: ACTIVE|XU - indicates a substance exempt from reporting under the Chemical Data Reporting Rule, (40 CFR 711).|1-Pentene, 4-methyl-: ACTIVE

Computed Properties

Molecular Weight:84.16
XLogP3:2.7
Rotatable Bond Count:2
Exact Mass:84.093900383
Monoisotopic Mass:84.093900383
Heavy Atom Count:6
Complexity:35.3
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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