Merck
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1.09799

Supelco

p-Xylene

reference substance for gas chromatography

Synonym(s):
p-Xylene, 1,4-Dimethylbenzene
Linear Formula:
C6H4-1,4-(CH3)2
CAS Number:
Molecular Weight:
106.17
MDL number:
EC Index Number:
203-396-5

vapor pressure

8.7 hPa ( 20 °C)

Quality Level

assay

≥99.5% (GC)

form

liquid

autoignition temp.

540 °C

potency

3910 mg/kg LD50, oral (Rat)

expl. lim.

1.1-7 % (v/v)

technique(s)

gas chromatography (GC): suitable

bp

138.4 °C/1013 hPa

mp

13.3 °C

transition temp

flash point 24 °C

solubility

0.2 g/L

density

0.86 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3

InChI key

URLKBWYHVLBVBO-UHFFFAOYSA-N

Related Categories

Analysis Note

Purity (GC): ≥ 99.5
Identity (IR-spectrum): conforms

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

80.6 °F - closed cup

Flash Point(C)

27 °C - closed cup

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