Located in Zhengdong New District, Zhengzhou of Henan province, Henan Allgreen Chemical Co.,Ltd is comprehensive high-tech modern enterprises integrating professional R&D, production and sales. Strong technical force, with a long-term professional development team engaging in the fine chemicals, Henan Allgreen Chemical Co.,Ltd is mainly engaged in development and customized of organic electronic chemical materials, metal catalysts, phosphorus ligands, medical intermediate , chemical reagent and other fine chemical products.We have multifunctional production conditions and could offer high quality products from grams to kilograms and tons. In addition, we absorb new technology actively from colleges and also have established good relations of cooperation with Huazhong University of Science and Technology ,Henan Institute of Engineering and some other well-known domestic enterprises. Our products have been exported to Japan, South Korea, Europe, America and other countries and regions, well received by customers.
With sound management system, we've been authorized the Import&Export qualification by the government and also has passed the “ISO 9001-2008 Quality Management System” certification. We always stand on the quality of product as our life, develop in the direction of customers requirement and aim at creating greater value for customers.Innovation and honesty, we will make common development with the masses of customers at home and abroad hand in hand by our best service
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soprene Basic information |
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Isoprene Chemical Properties |
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Melting point |
323-329 °C(lit.) |
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Boiling point |
34 °C(lit.) |
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density |
0.681 g/mL at 25 °C(lit.) |
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vapor density |
2.35 (vs air) |
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vapor pressure |
8.82 psi ( 20 °C) |
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refractive index |
n20/D 1.422(lit.) |
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Fp |
−65 °F |
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storage temp. |
2-8°C |
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form |
solid |
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Water Solubility |
0.07 g/100 mL |
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FreezingPoint |
-145.96℃ |
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Merck |
14,5201 |
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BRN |
969158 |
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Stability: |
Stability Extremely flammable. Readily forms explosive mixtures with air. Note low flash point, low boiling point, high vapour pressure. Unstable - prone to spontaneous polymerization. May contain a polymerization inhibitor. Incompatible with strong oxidizing agents. |
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CAS DataBase Reference |
78-79-5(CAS DataBase Reference) |
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NIST Chemistry Reference |
1,3-Butadiene, 2-methyl-(78-79-5) |
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EPA Substance Registry System |
1,3-Butadiene, 2-methyl-(78-79-5) |
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Isoprene Usage And Synthesis |
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Chemical Properties |
colourless liquid with an aromatic odour |
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Usage |
Isoprene is used in the synthesis of rubber through a polymer synthetic route. |
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Definition |
ChEBI: A hemiterpene with the formula CH22C(CH3)CH2CH2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurr ng compounds. |
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General Description |
A clear colorless liquid with a petroleum-like odor. Density 5.7 lb / gal. Flash point -65°F. Boiling point 93°F. May polymerize exothermically if heated or contaminated. If polymerization takes place inside a closed container, the container may rupture violently. Less dense than water and insoluble in water. Vapors heavier than air. |
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Air & Water Reactions |
Highly flammable. Insoluble in water. |
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Reactivity Profile |
ISOPRENE may react vigorously with strong oxidizing agents. May react exothemically with reducing agents to release hydrogen gas. May undergo exothermic addition polymerization in the presence of various catalysts (such as acids) or initiators. Undergoes autoxidation upon exposure to the air to form explosive peroxides. Mixing isoprene in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: chlorosulfonic acid, nitric acid (70%), oleum, sulfuric acid (90%) [NFPA 1991]. |
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Health Hazard |
Vapor produces no effects other than slight irritation of the eyes and upper respiratory tract. Liquid may irritate eyes; like gasoline. |
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Isoprene Preparation Products And Raw materials |
China (Mainland)
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