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Phthalic acid, ACS, 99.5+%, Thermo Scientific Chemicals
Description
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.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications
Specifications
Melting Point | 205°C (decomposition) |
Assay Percent Range | >99.5% |
Beilstein | 608199 |
Merck Index | 14,7371 |
Solubility Information | Soluble in alcohol. Slightly soluble in water,methanol and ether. Insoluble in chloroform. |
Formula Weight | 166.13 |
Percent Purity | ≥99.5% |
Grade | ACS |
Density | 1.593 |
Quantity | 100 g |
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Certificates
Certificates
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Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
N24L031 | Certificate of Analysis | 26/02/2025 | 041770.22,041770.36 |
W10K040 | Certificate of Analysis | 23/09/2024 | 041770.22,041770.36 |
S14K021 | Certificate of Analysis | 28/06/2024 | 041770.22,041770.36 |
Q23K046 | Certificate of Analysis | 11/06/2024 | 041770.22,041770.36 |
P06K043 | Certificate of Analysis | 15/03/2024 | 041770.22,041770.36 |
Safety and Handling

- Danger
- Serious eye damage/eye irritation Category 1
- H318-Causes serious eye damage.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P310-Immediately call a POISON CENTER/doctor/.
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