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441244

Sigma-Aldrich

多聚甲醛

prilled, 95%

同義詞:

聚氧亚甲基

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About This Item

線性公式:
HO(CH2O)nH
CAS號碼:
分子量::
30.03 (as monomer)
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22

蒸汽密度

1.03 (vs air)

品質等級

蒸汽壓力

<1.45 mmHg ( 25 °C)

化驗

95%

形狀

prilled

自燃溫度

572 °F

expl. lim.

73 %

mp

120-170 °C (lit.)

轉變溫度

sublimation point 150 °C

溶解度

alcohol and cold water: slightly soluble
ethers, hydrocarbons and carbon tetrachloride: insoluble

密度

0.88 g/mL at 25 °C (lit.)

SMILES 字串

[O-]#[C+H2]

InChI

1S/CH2O/c1-2/h1H2

InChI 密鑰

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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一般說明

多聚甲醛是甲醛的聚合产物,用于合成热固性聚合物的聚酯反应。

多聚甲醛也称聚甲醛。它在钌催化剂存在下可参与二烯、炔烃和丙二烯的区域选择性还原偶联反应。它还通过烯烃的烷氧基羰基化反应参与酯的合成。

應用

多聚甲醛可用于制备偶氮甲碱叶立德、α-亚甲基色烷、α-亚甲基喹啉和醌甲基化物。
甲醛可制备苯酚-、脲-、糠醇-、间苯二酚-和三聚氰胺-甲醛聚合物,用于涂料、木制品、纺织品和铸造用树脂。

特點和優勢

提供无甲醇的甲醛。
在热水中降解成甲醛。

訊號詞

Danger

危險分類

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Eye Dam. 1 - Flam. Sol. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

4.1B - Flammable solid hazardous materials

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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