4254-20-0 - Names and Identifiers
4254-20-0 - Physico-chemical Properties
| Molecular Formula | C14H10Cl2O2
|
| Molar Mass | 281.13 |
| Density | 1.379±0.06 g/cm3(Predicted) |
| Melting Point | 88 °C |
| Boling Point | 439.1±35.0 °C(Predicted) |
| pKa | 11.62±0.20(Predicted) |
4254-20-0 - Risk and Safety
| 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.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
|
4254-20-0 - Upstream Downstream Industry
4254-20-0 - Introduction
4,4 '-Dichlorophenylazo has the molecular formula C13H8Cl2N2 and is a white crystalline solid at room temperature. The following is a detailed description of the nature, use, preparation and safety information of 4,4 '-dichlorophenylazo:
Nature:
-Appearance: White crystalline solid
-Melting Point: 135-137 ° C
-Solubility: Slightly soluble in water, soluble in organic solvents such as ethanol and dichloromethane
-Stability: relatively stable under normal conditions
Use:
- 4,4 '-dichlorobenzeneazo is commonly used as reagents and intermediates in organic synthesis.
-It can be used as a precursor for synthetic dyes, fluorescent dyes and photosensitive dyes.
-It can also be used to synthesize oxalic acid fungicides and protective agents.
Method:
- 4,4 '-dichlorophenylazo is usually obtained by reacting aniline with ferric chloride under alkaline conditions, and the intermediates generated during the reaction are then reacted with nitrous acid to obtain the final product.
Safety Information:
- 4,4 '-dichlorobenzenazo is an organic compound. Exposure may cause irritation and allergic reactions. Please pay attention to personal protective measures.
-When used in laboratory and other operations, should comply with the safety procedures.
-Avoid inhalation, ingestion or skin contact, avoid prolonged or high-concentration exposure.
-When using or storing, please handle properly and keep away from organic solvents and flammable substances.
-In case of accidental contact, immediately flush the affected area with plenty of water and seek medical help.
Last Update：2024-04-10 22:29:15