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Phthalic anhydride

SIAL/320064 - ACS reagent, ≥99%

Synonym: 1,2-Benzenedicarboxylic anhydride; 1,3-Isobenzofurandione; Phthalic acid anhydride

CAS Number: 85-44-9
Empirical Formula (Hill Notation): C8H4O3
Molecular Weight: 148.12
EC Number: 201-607-5
MDL Number: MFCD00005918
Linear Formula: C8H4O3
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-320064-25G 25 g
$42.90
1/EA
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45-320064-500G 500 g
$72.40
1/EA
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45-320064-2.5KG 2.5 kg
$176.00
1/EA
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This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 320064-500G

 

anion traces chloride (Cl-): ≤0.002%
  sulfate (SO42-): ≤0.003%
assay ≥99%
  99.0-100.2%
autoignition temp. 1058 °F
bp 284 °C (lit.)
cation traces Fe: ≤5 ppm
  heavy metals: ≤5 ppm (by ICP)
expl. lim. 10.4 %
form flakes
grade ACS reagent
ign. residue ≤0.01%
InChI 1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H
InChI key LGRFSURHDFAFJT-UHFFFAOYSA-N
mp 131-134 °C (lit.)
Quality Level 200 
SMILES string O=C1OC(=O)c2ccccc12
vapor density 5.1 (vs air)
vapor pressure <0.01 mmHg ( 20 °C)
Application: Phthalic anhydride may be used as a reactant in the preparation of N-substituted phthalimides, poly(isothianaphthene) and methyl (S)-2-phthalimido-4-methylthiobutanoate.
General description: Phthalic anhydride is an anhydride of phthalic acid and a key intermediate in the production of plasticizers, dyes, polyesters resins, modifiers for rubber, and polymers.
Legal Information: Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Other Notes: Go to Redi-DriProduct Listing 797995 
Packaging: 2.5 kg in poly drum
Packaging: 25, 500 g in glass bottle
Purity ≥99%; 99.0-100.2%
bp 284 °C (lit.)
mp 131-134 °C (lit.)
UNSPSC 12352100

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