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Key Documents

8.18816

Sigma-Aldrich

3-(Chloropropyl)-trimethoxysilane

for synthesis

Synonym(s):

3-(Chloropropyl)-trimethoxysilane, CPTMO

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About This Item

Linear Formula:
Cl(CH2)3Si(OCH3)3
CAS Number:
Molecular Weight:
198.72
MDL number:
UNSPSC Code:
12352103
EC Index Number:
219-787-9
NACRES:
NA.22

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vapor pressure

<5 hPa ( 20 °C)

Quality Level

Assay

≥98.0% (GC)

form

liquid

autoignition temp.

220 °C

potency

>2000 mg/kg LD50, oral (Rat)
3062 mg/kg LD50, skin (Rabbit)

expl. lim.

5.5-44 % (v/v)

bp

195-197 °C/1013 hPa

mp

-50 °C

transition temp

flash point 78 °C

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This Item
C102504672440O8704
density

0.97 g/cm3 at 20 °C

density

0.97 g/mL at 25 °C (lit.)

density

-

density

0.968 g/mL at 25 °C (lit.)

storage temp.

2-30°C

storage temp.

-

storage temp.

-

storage temp.

-

form

liquid

form

liquid

form

-

form

-

mp

-27 °C

mp

-

mp

-

mp

-

bp

131-132 °C/1013 hPa

bp

129-130 °C (lit.)

bp

-

bp

119 °C/713 mmHg (lit.)

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.081 - 1.085
Identity (IR): passes test

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

161.1 °F - closed cup

Flash Point(C)

71.7 °C - closed cup


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