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41770 Phthalic acid, ACS, 99.5+%

CAS Number
88-99-3
Synonyms
Benzene-1,2-dicarboxylic acid

Stock No. Size Price ($) Quantity Availability
41770-22 100g 30.10
41770-36 500g 105.00
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Phthalic acid, ACS, 99.5+%

MDL
MFCD00002467
EINECS
201-873-2

Chemical Properties

Formula
C8H6O4
Formula Weight
166.13
Form
Crystalline powder
Melting point
205° dec.
Flash Point
168°(334°F)
Density
1.593
Storage & Sensitivity
Ambient temperatures.
Solubility
Soluble in alcohol. Slightly soluble in water, methanol and ether. Insoluble in chloroform.

Grade Specifications

Maximum level of impurities: Insoluble matter 0.05%, Residue after ignition (as SO4) 0.02%, Cl 0.001%, NO3 0.005%, SO4 0.005%, Heavy Metals (as Pb) 0.001%, Fe 0.001%, H2O 0.5%

Applications

Phthalic acid is used as an active ingredient in polyesters and alkyd resins. It is also used as plasticizers for polyvinyl chloride and other polymers. It is also useful in the production of anthraquinone, phenolphthalein and phthalocyanine pigments. It serves as an organic reagent in the production of phthalates. It is used to prepare 1,3-cyclohexadiene by reduction using sodium amalgam.

Notes

Incompatible with strong oxidizing agents.

Literature References

La Nasa, J.; Degano, I.; Modugno, F.; Colombini, M. P. Industrial alkyd resins: characterization of pentaerythritol and phthalic acid esters using integrated mass spectrometry. Rapid Commun. Mass Spectrom. 2015, 29 (3), 225-237.

Tummanapelli, A. K.; Vasudevan, S. Estimating successive p K a values of polyprotic acids from ab initio molecular dynamics using metadynamics: the dissociation of phthalic acid and its isomers. Phys. Chem. Chem. Phys. 2015, 17 (9), 6383-6388.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H318-H335

Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P310-P312-P332+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,7371
Beilstein
608199
Harmonized Tariff Code
2917.39
TSCA
Yes
RTECS
TH9625000

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