Phthalic Anhydride 99%

Brief Description
CAS No.: 201-607-5 Other Names: Phthalic Anhydride 99% MF: C6H4(CO)2O
EINECS No.: 201-607-5 Place of Origin: China (Mainland) Grade Standard: Industrial Grade
Brand Name: ODY  
Specifications
Phthalic Anhydride 99%

CAS RN.: 86-90-8
EINECS: 201-707-9
Molecular Weight: 227.0116
Molecular Formula: C8H3BrO3
Density: 1.911g/cm3

Precursor to dyestuffs

Phthalic anhydride is widely used in industry for the production of certain dyes. A well-known application of this reactivity is the preparation of the anthroquinone dye quinizarin by reaction with para-chlorophenol followed by hydrolysis of the chloride.

ItemIndex
Top gradeFirst gradeQualified product
Appearancewhite scaly or crystalline powderwhite scaly or crystalline powder with slight colors
molten Chroma(Chroma no. )≤2050100
thermostable Chroma(Chroma no. )≤50150-
Chroma of vitriol(Chroma no. )≤60100150
crystallization point°C≥130.5130.3130.0
Purity(mass fraction)%≥99.5099.5099.00
Free acid(mass fraction)≤ %0.200.300.50
Ash(mass fraction)%≤0.05--