1,2-Benzenedicarboxylic acid, dihydrazide
1,2-Benzenedicarboxylic acid, dihydrazide
CAS: 3645-45-2
Molecular Formula: C8H10N4O2
1,2-Benzenedicarboxylic acid, dihydrazide - Names and Identifiers
1,2-Benzenedicarboxylic acid, dihydrazide - Physico-chemical Properties
| Molecular Formula | C8H10N4O2 |
| Molar Mass | 194.19 |
1,2-Benzenedicarboxylic acid, dihydrazide - Introduction
1,2-Benzenedicarboxylic acid, dihydrazide, also known as phthalic acid dihydrazide (abbreviated as PADH) is an organic compound. The following is some information about the nature, use, preparation and safety of PADH.
Nature:
- PADH is a colorless crystalline powder.
-It is not easy to dissolve in water, but it can be dissolved in organic solvents, such as alcohols and ketones.
-It has a lower melting point and volatility.
- PADH is an unstable compound that decomposes easily.
Use:
- PADH is mainly used as a crosslinking agent for rubber materials and plastics.
-It can enhance the strength, hardness and heat resistance of the material.
- PADH can also be used as a precursor for dyes and pigments.
Preparation Method:
- PADH can be prepared by the shrinkage dehydration reaction of terephthalic acid.
-The reaction conditions generally include heating phthalic acid and hydrazine to react in a solvent, and removing water to obtain PADH.
Safety Information:
- PADH is irritating and sensitizing and may cause eye and skin irritation.
-When using, avoid direct contact with skin and eyes.
-When handling PADH, it is recommended to wear appropriate personal protective equipment, such as gloves and protective glasses, to prevent contact and inhalation.
- PADH should be stored in a dry, cool place, avoid contact with oxidants, acids and alkalis.
Please note that for the safe use of chemicals, please carefully read and follow the relevant safety instructions and operating instructions.
Nature:
- PADH is a colorless crystalline powder.
-It is not easy to dissolve in water, but it can be dissolved in organic solvents, such as alcohols and ketones.
-It has a lower melting point and volatility.
- PADH is an unstable compound that decomposes easily.
Use:
- PADH is mainly used as a crosslinking agent for rubber materials and plastics.
-It can enhance the strength, hardness and heat resistance of the material.
- PADH can also be used as a precursor for dyes and pigments.
Preparation Method:
- PADH can be prepared by the shrinkage dehydration reaction of terephthalic acid.
-The reaction conditions generally include heating phthalic acid and hydrazine to react in a solvent, and removing water to obtain PADH.
Safety Information:
- PADH is irritating and sensitizing and may cause eye and skin irritation.
-When using, avoid direct contact with skin and eyes.
-When handling PADH, it is recommended to wear appropriate personal protective equipment, such as gloves and protective glasses, to prevent contact and inhalation.
- PADH should be stored in a dry, cool place, avoid contact with oxidants, acids and alkalis.
Please note that for the safe use of chemicals, please carefully read and follow the relevant safety instructions and operating instructions.
Last Update：2024-04-09 15:17:57
