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Phthalic anhydride

Name: Phthalic anhydride
Brand: SIAL
Price: 60.1 USD
Availability: InStock

99%, flakes, ReagentPlus^®

Synonym(s):

1,2-Benzenedicarboxylic anhydride, 1,3-Isobenzofurandione, Phthalic acid anhydride

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Size/SKU	Availability	Price
1 kg	Available to ship TODAYfromMILWAUKEE	$60.10
2.5 kg	Check Cart for Availability	$123.00
16 kg	Available to ship TODAYfromMILWAUKEE	$474.00

About This Item

Empirical Formula (Hill Notation):

C₈H₄O₃

CAS Number:

85-44-9

Molecular Weight:

148.12

NACRES:

NA.21

PubChem Substance ID:

57646985

UNSPSC Code:

12352100

EC Number:

201-607-5

MDL number:

MFCD00005918

Beilstein/REAXYS Number:

118515

Assay:

99%

Form:

flakes

$60.10

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Properties

Product Name

Phthalic anhydride, ReagentPlus^®, 99%

vapor density

5.1 (vs air)

Quality Segment

200

vapor pressure

<0.01 mmHg ( 20 °C)

product line

ReagentPlus^®

assay

99%

form

flakes

autoignition temp.

1058 °F

expl. lim.

10.4 %

bp

284 °C (lit.)

mp

131-134 °C (lit.)

functional group

anhydride, ester

SMILES string

O=C1OC(=O)c2ccccc12

InChI

1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H

InChI key

LGRFSURHDFAFJT-UHFFFAOYSA-N

Description

General description

Phthalic anhydride is an industrially important chemical. It can be prepared from o-xylene or naphthalene. It is widely used for the industrial preparation of plasticizers for PVC (polyvinyl chloride).
Phthalic anhydride can be synthesized via oxidation of o-xylene, in the presence of V₂O₅/TiO₂ monolithic catalyst supported by aluminium honeycomb.

Application

Phthalic anhydride may be used in the synthesis of the following compounds:

pthalimide
phenolphthalein
anthracene

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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This Item	320064	797995	800592
Sigma-Aldrich 125733 Phthalic anhydride	Sigma-Aldrich 320064 Phthalic anhydride	Sigma-Aldrich 797995 Phthalic anhydride	Sigma-Aldrich 800592 Phthalic anhydride
description ReagentPlus^®, 99%	description ACS reagent, ≥99%	description anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99%	description for synthesis
assay 99%	assay ≥99%, 99.0-100.2%	assay ≥99%	assay -
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 200
bp 284 °C (lit.)	bp 284 °C (lit.)	bp 284 °C (lit.)	bp 285 °C/1013 hPa
form flakes	form flakes	form powder	form crystals
mp 131-134 °C (lit.)	mp 131-134 °C (lit.)	mp 131-134 °C (lit.)	mp 131 °C
vapor density 5.1 (vs air)	vapor density 5.1 (vs air)	vapor density 5.1 (vs air)	vapor density -

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pictograms

GHS08,GHS05,GHS07

signalword

Danger

hcodes

H302,H315,H317,H318,H334,H335

pcodes

P261 - P264 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1A - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

305.6 °F - DIN 51758

flash_point_c

152 °C - DIN 51758

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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