4,5-Difluorophthalic acid
4,5-Difluorophthalic acid
CAS: 18959-31-4
Molecular Formula: C8H4F2O4
4,5-Difluorophthalic acid - Names and Identifiers
| Name | 4,5-Difluorophthalic acid |
| Synonyms | 4,5-Difluorophthalicaci 4,5-Difluorophthalic acid 4,5-Difluorobenzene-1,2-dicarboxylic acid 1,2-Benzenedicarboxylic acid, 4,5-difluoro- |
| CAS | 18959-31-4 |
| InChI | InChI=1/C8H4F2O4/c9-5-1-3(7(11)12)4(8(13)14)2-6(5)10/h1-2H,(H,11,12)(H,13,14) |
4,5-Difluorophthalic acid - Physico-chemical Properties
| Molecular Formula | C8H4F2O4 |
| Molar Mass | 202.11 |
| Density | 1.644±0.06 g/cm3(Predicted) |
| Melting Point | 161.5-162 °C |
| Boling Point | 378.7±42.0 °C(Predicted) |
| Flash Point | 182.9°C |
| Vapor Presure | 2.07E-06mmHg at 25°C |
| pKa | 2.55±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.566 |
4,5-Difluorophthalic acid - Introduction
4,5-difluorophthalic acid is an organic compound with the chemical formula C8H4F2O4. The following is a description of its nature, use, formulation and safety information:
Nature:
-Appearance: 4,5-difluorophthalic acid is white crystalline powder.
-Solubility: It is insoluble in water, but soluble in organic solvents such as chloroform, ethanol and dimethylformamide.
-Melting point: Its melting point is about 210-215 ° C.
-Stability: It is relatively stable under most common conditions.
Use:
-Material chemistry: 4,5-difluorophthalic acid can be used to synthesize high-performance polyester resins, such as polybutylene oxalate (PBT) and polyethylene oxalate (PET).
-Pharmaceutical field: It can also be used to prepare some pharmaceutical intermediates.
Method:
The preparation of 4,5-difluorophthalic acid can be completed by the fluorination reaction of phthalic acid. The specific preparation method can be the reaction of phthalic acid with hydrogen fluoride or sodium fluoride to produce 4,5-difluorophthalic acid.
Safety Information:
- 4,5-difluorophthalic acid has low toxicity, but it still needs to comply with the regular chemical safety code of practice.
-Avoid inhalation, ingestion or contact with eyes and skin during use.
-In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
-When preparing or handling this compound, use appropriate protective equipment, such as gloves and eye protection.
-Work involving this compound should be carried out in a well-ventilated place.
Nature:
-Appearance: 4,5-difluorophthalic acid is white crystalline powder.
-Solubility: It is insoluble in water, but soluble in organic solvents such as chloroform, ethanol and dimethylformamide.
-Melting point: Its melting point is about 210-215 ° C.
-Stability: It is relatively stable under most common conditions.
Use:
-Material chemistry: 4,5-difluorophthalic acid can be used to synthesize high-performance polyester resins, such as polybutylene oxalate (PBT) and polyethylene oxalate (PET).
-Pharmaceutical field: It can also be used to prepare some pharmaceutical intermediates.
Method:
The preparation of 4,5-difluorophthalic acid can be completed by the fluorination reaction of phthalic acid. The specific preparation method can be the reaction of phthalic acid with hydrogen fluoride or sodium fluoride to produce 4,5-difluorophthalic acid.
Safety Information:
- 4,5-difluorophthalic acid has low toxicity, but it still needs to comply with the regular chemical safety code of practice.
-Avoid inhalation, ingestion or contact with eyes and skin during use.
-In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
-When preparing or handling this compound, use appropriate protective equipment, such as gloves and eye protection.
-Work involving this compound should be carried out in a well-ventilated place.
Last Update：2024-04-09 15:17:54
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Product Name: 4,5-Difluorophthalic Acid Visit Supplier Webpage Request for quotationCAS: 18959-31-4
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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