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Isopentane(CAS#78-78-4)

Chemical Property:

Molecular Formula C5H12
Molar Mass 72.15
Density 0.62g/mLat 25°C(lit.)
Melting Point -160 °C
Boling Point 30°C(lit.)
Flash Point −51°C
Water Solubility Miscible with water, hydrocarbons, oils, alcohol and ether.
Solubility 0.048g/l
Vapor Presure 11.17 psi ( 20 °C)
Vapor Density 2.6 (vs air)
Appearance Liquid
Color Clear colorless
Exposure Limit ACGIH TLV: TWA 600 ppm (adopted).
Maximum wavelength(λmax) ['λ: 192 nm Amax: 1.00',
, 'λ: 210 nm Amax: 0.30',
, 'λ: 220 nm Amax: 0.07',
, 'λ: 24
BRN 1730723
pKa >14 (Schwarzenbach et al., 1993)
Storage Condition 2-8°C
Stability Stable. Extremely flammable. Incompatible with strong oxidizing agents. Vapour-air mixtures explosive in certain proportions. Incompatible with rubber, various plastics.
Explosive Limit 1.3-7.6%(V)
Refractive Index n20/D 1.354(lit.)
Physical and Chemical Properties Colorless transparent liquid. The melting point is -160 °c, the boiling point is 27.85 °c (30-30.2 °c), the relative density is 0.6201, the refractive index is 1.3537, and the flash point is -56 °c. With ethanol, ether miscible, insoluble in water.
Use It can be used as solvent of catalyst in polyethylene production, foaming agent of expandable polystyrene, foaming agent of polyurethane foam system, deasphalting solvent, etc

Product Detail

Product Tags

Risk and Safety

Risk Codes R12 – Extremely Flammable
R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R65 – Harmful: May cause lung damage if swallowed
R66 – Repeated exposure may cause skin dryness or cracking
R67 – Vapors may cause drowsiness and dizziness
Safety Description S9 – Keep container in a well-ventilated place.
S16 – Keep away from sources of ignition.
S29 – Do not empty into drains.
S33 – Take precautionary measures against static discharges.
S61 – Avoid release to the environment. Refer to special instructions / safety data sheets.
S62 – If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label.
UN IDs UN 1265 3/PG 1
WGK Germany 2
RTECS EK4430000
TSCA Yes
HS Code 29011000
Hazard Class 3
Packing Group I

 

 

Isopentane(CAS#78-78-4)

quality
Isopentane is a colorless, flammable liquid. It is extremely flammable, and its vapors and air can form explosive mixtures. In case of open flame and high heat, it is easy to burn and explode. It can react strongly with oxidants and even cause combustion. Its vapors are heavier than air, can spread at a low point to a considerable distance, and will cause back-ignition in case of open flames. In case of high heat, the internal pressure of the container increases, and there is a risk of cracking and explosion.

Hair
Tert-amyl alcohol was dehydrated to obtain a mixture of 2-methyl-1-butene, 2-methyl-2-butene and 3-methyl-1-butene, which were hydrotreated to obtain crude isopentane, and then distilled to obtain high-purity isopentane. Natural gas condensate can also be used as raw material to remove C2, C3, C4 and n-pentane fractions by pressure distillation to produce high-purity isopentane.

use
It is used for the preparation of standard gas and correction gas.

security
Mouse inhaled LC50: lOOOmg/m3. It has an anesthetic and mild stimulating effect. It can cause irritation of the eyes and respiratory tract, and in severe cases, there are symptoms of anesthesia and even loss of consciousness. Store in a cool, ventilated warehouse, isolated from the oxidant, away from the fire, and take cooling measures in hot climates. Do not expose to sunlight.


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