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Merck
CN

8.00553

Trimethyl phosphite

for synthesis

Synonym(s):

Trimethyl phosphite

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About This Item

Empirical Formula (Hill Notation):
C3H9O3P
CAS Number:
Molecular Weight:
124.08
UNSPSC Code:
12352108
EC Index Number:
204-471-5
NACRES:
NA.22
MDL number:
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Product Name

Trimethyl phosphite, for synthesis

SMILES string

P(OC)(OC)OC

InChI

1S/C3H9O3P/c1-4-7(5-2)6-3/h1-3H3

InChI key

CYTQBVOFDCPGCX-UHFFFAOYSA-N

vapor pressure

28 hPa ( 20 °C)

assay

≥98.0% (GC)

form

liquid

autoignition temp.

250 °C

potency

1600 mg/kg LD50, oral (Rat)
2600 mg/kg LD50, skin (Rabbit)

expl. lim.

5.2-61.2 % (v/v)

bp

112 °C/1013 hPa

mp

-78 °C

transition temp

flash point 28 °C

density

1.05 g/cm3 at 20 °C

storage temp.

2-30°C

Quality Level

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.051 - 1.053
Identity (IR): passes test

pictograms

FlameExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

supp_hazards

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

82.4 °F - closed cup

flash_point_c

28 °C - closed cup

Regulatory Information

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