Phthalic anhydride
Specifications
- Origin
- Puyang Henan China
Quick answerPhthalic anhydride is a Organic Acid product. Key specs — Origin: Puyang Henan China.
Product Description
| Phthalic anhydride | |
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Chemical name：phthalic anhydride
Molecular formula：C8H4O3CAS RN.：64-18-6
Molecular weight：148.12Quality standard GB/T 15336-2006 | Item | Index | | Top grade | First grade | Qualified product | | Appearance | White scaly or crystalline powder
| White scaly or crystalline powder, may with other colors | | Fused Chroma（Chroma No.）≤ | 20 | 50 | 100 | | Thermostable Chroma（Chroma No.）≤ | 50 | 150 | - | | Sulfuric acid Chroma（Chroma No.）≤ | 60 | 100 | 150 | | Crystallization point ℃≥ | 130.5 | 130.3 | 130.0 | | Purity（mass fraction）%≥ | 99.50 | 99.50 | 99.00 | | Free acid（mass fraction）≤ % | 0.20 | 0.30 | 0.50 | | Ash（mass fraction）%≤ | 0.05 | - | - |
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