p-Benzenedithiol
1,4-Benzenedithiol
CAS: 624-39-5
Molecular Formula: C6H6S2
p-Benzenedithiol - Names and Identifiers
| Name | 1,4-Benzenedithiol |
| Synonyms | p-Benzenedithiol 1,4-Benzenedithiol DITHIOHYDROQUINONE Dithiohydroquinone Benzene-1,4-dithiol benzene-1,4-dithiol 1,4-Benzenendithiol 1,4-dimercaptobenzene 1,4-Dimercaptobenzene benzene-1,4-bis(thiolate) 1,4-Dimercaptobenzene~Dithiohydroquinone |
| CAS | 624-39-5 |
| EINECS | 677-344-9 |
| InChI | InChI=1/C6H6S2/c7-5-1-2-6(8)4-3-5/h1-4,7-8H/p-2 |
| InChIKey | WYLQRHZSKIDFEP-UHFFFAOYSA-N |
p-Benzenedithiol - Physico-chemical Properties
| Molecular Formula | C6H6S2 |
| Molar Mass | 142.24 |
| Density | 1.240±0.06 g/cm3(Predicted) |
| Melting Point | 90°C |
| Boling Point | 243.3±23.0 °C(Predicted) |
| Flash Point | 111.8°C |
| Water Solubility | Soluble in water. |
| Vapor Presure | 0.0506mmHg at 25°C |
| Appearance | powder or crystals |
| Color | White to Orange to Green |
| BRN | 1680022 |
| pKa | 5.92±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Sensitive | Air Sensitive |
| MDL | MFCD00142541 |
p-Benzenedithiol - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - 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. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| Hazard Class | 9 |
p-Benzenedithiol - Introduction
1,4-Benzenedithiol, also known as 1,4-dimercaptobenzene, is an organic sulfur compound. Its chemical formula is C6H6S2, structural formula is HS(CH2)4SH.
1,4-Benzenedithiol is a white to yellow crystalline solid with a strong sulfur odor. It has low volatility at room temperature. It is slightly soluble in water, but highly soluble in most organic solvents.
1,4-Benzenedithiol has some important applications. First, it is often used as an intermediate in organic synthesis for the synthesis of sulfur-containing compounds. Secondly, it is used in the field of electrochemistry as a metal corrosion inhibitor and an electrode modifier. In addition, it is used as a ligand for dyes and photosensitive materials.
A method for preparing 1,4-Benzenedithiol is to oxidize benzothiophene disulfide with sodium manganate, then treat the product with calcium hydroxide, and finally acidify to obtain 1,4-Benzenedithiol.
Pay attention to safety when using 1,4-Benzenedithiol. It has a pungent odor and may cause irritation on contact with the skin and eyes. Therefore, wear protective gloves, goggles and protective clothing during operation. In addition, you should avoid inhaling its dust or vapor and ensure that it is used in a well-ventilated place. If you come into contact with 1,4-Benzenedithiol, rinse immediately with plenty of water and seek medical help.
1,4-Benzenedithiol is a white to yellow crystalline solid with a strong sulfur odor. It has low volatility at room temperature. It is slightly soluble in water, but highly soluble in most organic solvents.
1,4-Benzenedithiol has some important applications. First, it is often used as an intermediate in organic synthesis for the synthesis of sulfur-containing compounds. Secondly, it is used in the field of electrochemistry as a metal corrosion inhibitor and an electrode modifier. In addition, it is used as a ligand for dyes and photosensitive materials.
A method for preparing 1,4-Benzenedithiol is to oxidize benzothiophene disulfide with sodium manganate, then treat the product with calcium hydroxide, and finally acidify to obtain 1,4-Benzenedithiol.
Pay attention to safety when using 1,4-Benzenedithiol. It has a pungent odor and may cause irritation on contact with the skin and eyes. Therefore, wear protective gloves, goggles and protective clothing during operation. In addition, you should avoid inhaling its dust or vapor and ensure that it is used in a well-ventilated place. If you come into contact with 1,4-Benzenedithiol, rinse immediately with plenty of water and seek medical help.
Last Update：2024-04-10 22:29:15
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