797995
Phthalic anhydride
anhydrous grade, ACS reagent grade, ≥99%, Redi-Dri™, free-flowing, powder
Synonym(s):
1,2-Benzenedicarboxylic anhydride, 1,3-Isobenzofurandione, Phthalic acid anhydride
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About This Item
Product Name
Phthalic anhydride, anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
InChI key
LGRFSURHDFAFJT-UHFFFAOYSA-N
InChI
1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H
SMILES string
O=C1OC(=O)c2ccccc12
grade
ACS reagent
anhydrous
vapor density
5.1 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
product line
Redi-Dri™
assay
≥99%
form
powder
autoignition temp.
1058 °F
expl. lim.
10.4 %
ign. residue
≤0.01%
bp
284 °C (lit.)
mp
131-134 °C (lit.)
anion traces
chloride (Cl-): ≤0.002%
sulfate (SO42-): ≤0.003%
cation traces
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP)
functional group
anhydride
ester
Quality Level
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Legal Information
signalword
Danger
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - 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
Regulatory Information
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Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.
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