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8.22298

Sigma-Aldrich

Phthalic acid

for synthesis

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Synonym(s):
Phthalic acid, Benzene-1,2-dicarboxylic acid
Linear Formula:
C6H4(COOH)2
CAS Number:
Molecular Weight:
166.13
MDL number:
EC Index Number:
201-873-2

vapor pressure

7.8 hPa ( 191 °C)

Quality Level

assay

≥99% (acidimetric)

form

solid

potency

7900 mg/kg LD50, oral (Rat)

pH

2 (20 °C, 5 g/L in H2O)

bp

289 °C/1013 hPa (decomposition)

mp

191 °C (closed capillary tube)

transition temp

flash point 168 °C

solubility

water: 5.74 g/L at 20 °C

density

1.59 g/cm3 at 20 °C

bulk density

960 kg/m3

storage temp.

2-30°C

InChI

1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)

InChI key

XNGIFLGASWRNHJ-UHFFFAOYSA-N

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1 of 4

This Item
15358997979958.22323
vibrant-m

8.22298

Phthalic acid

vibrant-m

1535899

Phthalic acid

vibrant-m

797995

Phthalic anhydride

vibrant-m

8.22323

Diethyl phthalate

assay

≥99% (acidimetric)

assay

-

assay

≥99%

assay

-

storage temp.

2-30°C

storage temp.

-

storage temp.

-

storage temp.

-

density

1.59 g/cm3 at 20 °C

density

1.59 g/cm3 at 15 °C

density

-

density

1.12 g/mL at 25 °C (lit.)

mp

191 °C (closed capillary tube)

mp

210-211 °C (dec.) (lit.)

mp

131-134 °C (lit.)

mp

-60 °C, −3 °C (lit.)

form

solid

form

crystalline

form

powder

form

-

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Identity (IR): passes test

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

334.4 °F

flash_point_c

168 °C


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