Phthalic anhydride, 99%

Description

CAS: 85-44-9 | C8H4O3 | 148.12 g/mol

Phthalic anhydride is used in the preparation of primary amines. It is used as a precursor to prepare anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein and xanthene dyes. It serves as an important intermediate in the plastics industry, dyes, resins and pigments. It is used as a monomer for synthetic resins such as glyptal, alkyd resins and polyester resins. It plays a vital role in the large-scale production of plasticizers for plastics. Further, it acts as a curing agent for epoxy resins, anti-scaling agents, plating agents, surface treating agents, ion exchange agents, paint additives, adhesives, sealant chemicals and potential antibacterial agent.

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.

Applications
Phthalic anhydride is used in the preparation of primary amines. It is used as a precursor to prepare anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein and xanthene dyes. It serves as an important intermediate in the plastics industry, dyes, resins and pigments. It is used as a monomer for synthetic resins such as glyptal, alkyd resins and polyester resins. It plays a vital role in the large-scale production of plasticizers for plastics. Further, it acts as a curing agent for epoxy resins, anti-scaling agents, plating agents, surface treating agents, ion exchange agents, paint additives, adhesives, sealant chemicals and potential antibacterial agent.

Solubility
Soluble in water, carbon disulfide, ethanol, acetone and benzene. Slightly soluble in ethyl ether.

Notes
Moisture sensitive. Incompatible with strong oxidizing agents, strong bases, strong reducing agents and strong acids.

Specifications

Chemical Identifiers

• CAS: 85-44-9
• Molecular Formula: C8H4O3
• Molecular Weight (g/mol): 148.12
• MDL Number: MFCD00005918
• InChI Key: LGRFSURHDFAFJT-UHFFFAOYSA-N
• Synonym: phthalic anhydride, isobenzofuran-1,3-dione, 1,3-isobenzofurandione, 1,3-dioxophthalan, 1,3-phthalandione, phthalsaeureanhydrid, phthalic acid anhydride, o-phthalic acid anhydride, phthalandione, retarder esen
• PubChem CID: 6811
• ChEBI: CHEBI:36605
• SMILES: O=C1OC(=O)C2=CC=CC=C12

• Melting Point: 130°C to 134°C
• Density: 1.53
• Boiling Point: 295°C (sublimation)
• Flash Point: 152°C (305°F)
• Odor: Weak, Characteristic
• Quantity: 100 g
• UN Number: UN2214
• Beilstein: 118515
• Sensitivity: Moisture sensitive
• Merck Index: 14,7372
• Solubility Information: Soluble in water,carbon disulfide,ethanol,acetone and benzene. Slightly soluble in ethyl ether.
• IUPAC Name: 1,3-dihydro-2-benzofuran-1,3-dione
• Formula Weight: 148.12
• Percent Purity: 99%
• Chemical Name or Material: Phthalic anhydride

Safety and Handling

Hazard Category	H302-H315-H317-H318-H334-H335-H500
Hazard Statement	GHS H Statement H334-H318-H302-H335-H315-H317 May cause allergy or asthma symptoms or breathing difficulties if inhaled. Causes serious eye damage. Harmful if swallowed. May cause respiratory irritation. Causes skin irritation. May cause an allergic skin reaction.
Precautionary Statement	P261-P264b-P270-P271-P272-P280-P285-P301+P312-P302+P352-P304+P340-P305+P351+P338-P310-P330-P333+P313-P342+P311-P362-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: PHTHALIC ANHYDRIDE
EINECSNumber	201-607-5
RTECSNumber	TI3150000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only