3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disod
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester, disodium salt
CAS: 14282-56-5
Molecular Formula: C10H10Na2O6S
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disod - Names and Identifiers
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disod - Physico-chemical Properties
| Molecular Formula | C10H10Na2O6S |
| Molar Mass | 304.22734 |
| Density | 1.507g/cm3 |
| Melting Point | 320-325°C(lit.) |
| Boling Point | 343.8°C at 760 mmHg |
| Flash Point | 161.7°C |
| Vapor Presure | 4.41E-06mmHg at 25°C |
| Storage Condition | Room Temprature |
| Refractive Index | 1.616 |
| Physical and Chemical Properties | WGK Germany:3 |
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disod - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disod - Introduction
2,5-Diethyl 3,4-dihydroxy -2,5-thiophenedicarboxylic acid sodium salt, also known as DEH, is an organic compound. The following is a description of its nature, use, preparation and safety information:
Nature:
- DEH is a solid crystal, white or yellowish.
-It is soluble in water at room temperature, and has a certain solubility in organic solvents.
- DEH has a neutral pH value, is not volatile, and has good stability.
Use:
- DEH is often used as a crosslinking agent in organic chemical synthesis and plays an important role in the preparation of polymers and coatings.
-Its use in polyester resins and coatings can enhance the heat resistance, corrosion resistance and mechanical strength of the material.
- DEH can also be used as a stabilizer and protective agent for certain chemicals and materials.
Preparation Method:
The preparation of-DEH is usually carried out by esterification reaction and hydroxylation reaction.
-First, 2,5-diethyl 3,4-dihydroxy -2,5-thiophene and sodium formate are reacted under appropriate reaction conditions to generate 2,5-diethyl 3,4-dihydroxy -2,5-thiophene dicarboxylic acid.
-Then, the generated dicarboxylic acid is reacted with a base (such as sodium hydroxide) to form 2,5-diethyl 3,4-dihydroxy -2,5-thiophene dicarboxylic acid sodium salt.
Safety Information:
- DEH should be handled and stored using appropriate personal protective measures, such as gloves, goggles and laboratory coats.
-Follow laboratory safety practices when using DEH and ensure that adequate ventilation is provided.
-Avoid contact with skin, eyes and mucous membranes, such as accidental contact, should immediately rinse with water.
- DEH is a chemical and should be stored in a closed container, away from fire and flammable materials.
-If DEH is ingested or inhaled, seek medical attention immediately and show the Chemical Safety Data Sheet.
Nature:
- DEH is a solid crystal, white or yellowish.
-It is soluble in water at room temperature, and has a certain solubility in organic solvents.
- DEH has a neutral pH value, is not volatile, and has good stability.
Use:
- DEH is often used as a crosslinking agent in organic chemical synthesis and plays an important role in the preparation of polymers and coatings.
-Its use in polyester resins and coatings can enhance the heat resistance, corrosion resistance and mechanical strength of the material.
- DEH can also be used as a stabilizer and protective agent for certain chemicals and materials.
Preparation Method:
The preparation of-DEH is usually carried out by esterification reaction and hydroxylation reaction.
-First, 2,5-diethyl 3,4-dihydroxy -2,5-thiophene and sodium formate are reacted under appropriate reaction conditions to generate 2,5-diethyl 3,4-dihydroxy -2,5-thiophene dicarboxylic acid.
-Then, the generated dicarboxylic acid is reacted with a base (such as sodium hydroxide) to form 2,5-diethyl 3,4-dihydroxy -2,5-thiophene dicarboxylic acid sodium salt.
Safety Information:
- DEH should be handled and stored using appropriate personal protective measures, such as gloves, goggles and laboratory coats.
-Follow laboratory safety practices when using DEH and ensure that adequate ventilation is provided.
-Avoid contact with skin, eyes and mucous membranes, such as accidental contact, should immediately rinse with water.
- DEH is a chemical and should be stored in a closed container, away from fire and flammable materials.
-If DEH is ingested or inhaled, seek medical attention immediately and show the Chemical Safety Data Sheet.
Last Update：2024-04-09 21:01:54
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CAS: 14282-56-5
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