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重要文件

I19551

Sigma-Aldrich

异戊二烯

99%, contains <1000 ppm p-tert-butylcatechol as inhibitor

同義詞:

2-甲基-1,3-丁二烯

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About This Item

線性公式:
CH2=CHC(CH3)=CH2
CAS號碼:
分子量::
68.12
Beilstein:
969158
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22

蒸汽密度

2.35 (vs air)

品質等級

蒸汽壓力

8.82 psi ( 20 °C)

化驗

99%

形狀

liquid

自燃溫度

428 °F

包含

<1000 ppm p-tert-butylcatechol as inhibitor

expl. lim.

10 %

折射率

n20/D 1.422 (lit.)

bp

34 °C (lit.)

mp

−146 °C (lit.)

密度

0.681 g/mL at 25 °C (lit.)

儲存溫度

2-8°C

SMILES 字串

CC(=C)C=C

InChI

1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3

InChI 密鑰

RRHGJUQNOFWUDK-UHFFFAOYSA-N

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應用

异戊二烯在作为引发剂的丁基锂的存在下,可以与苯乙烯和甲基丙烯酸甲酯进行顺序的阴离子聚合,从而形成聚苯乙烯-嵌段-聚异戊二烯-嵌段-聚(甲基丙烯酸甲酯)(SIM)和聚异戊二烯-嵌段-聚苯乙烯-嵌段-聚(甲基) 甲基丙烯酸酯(ISM),两种不对称三嵌段三元共聚物。它也可用于聚苯乙烯-嵌段-聚异戊二烯(PS-b-PI)二嵌段共聚物的不对称合成。

象形圖

FlameHealth hazard

訊號詞

Danger

危險分類

Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 3

閃點(°F)

-65.2 °F - closed cup

閃點(°C)

-54 °C - closed cup

個人防護裝備

Eyeshields, Faceshields, Gloves


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分析證明 (COA)

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