380474

2,2′-Dithiodiethanol

technical grade

• Synonym(e): 2-Hydroxyethyldisulfid, Bis-(2-hydroxyethyl)-disulfid
• Lineare Formel: HOCH₂CH₂SSCH₂CH₂OH
• CAS-Nummer: 1892-29-1
• Molekulargewicht: 154.25
• Beilstein: 1735851
• EG-Nummer: 217-576-6
• MDL-Nummer: MFCD00002906
• UNSPSC-Code: 12162002
• PubChem Substanz-ID: 24863744
• NACRES: NA.23

Eigenschaften

• Qualität: technical grade
• Qualitätsniveau: 200
• Form: liquid
• Brechungsindex: n20/D 1.57 (lit.)
• bp: 158-163 °C/3.5 mmHg (lit.)
• mp (Schmelzpunkt): 25-27 °C (lit.)
• Dichte: 1.261 g/mL at 25 °C (lit.)
• SMILES String: OCCSSCCO
• InChI: 1S/C4H10O2S2/c5-1-3-7-8-4-2-6/h5-6H,1-4H2
• InChIKey: KYNFOMQIXZUKRK-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

2-Hydroxyethyldisulfide (HEDS) is an organosulfur compound ​that belongs to the class ofdialkyl disulfides and has a disulfide bond -S-S- between two hydroxyethylgroups. In material science, HEDS is used as a precursor to form self-assembledmonolayers (SAMs) on gold surfaces for applications such as corrosionprotection, lubrication, and sensors. In addition, 2-hydroxyethyl disulfide isalso used as a reducing agent in organic synthesis and as a crosslinking agentin the production of rubber compounds.

Anwendung

2-Hydroxyethyl disulfide can be used as:

• A chain extender in the preparation of waterborne self-healing polyurethane, which is used in leather coating.
• As a precursor in the synthesis of multifunctional initiator, which is used in the preparation of star polystyrenes by atom transfer radical polymerization of styrene.
• A starting material to prepare a disulfide-based branching agent. This branching agent is used to synthesize highly branched poly(2-hydroxypropyl methacrylate).

Sicherheitshinweise

• Piktogramme: GHS06,GHS05
• Signalwort: Danger
• H-Sätze: H301,H318
• P-Sätze: P264 - P280 - P301 + P310 - P305 + P351 + P338 - P405 - P501
• Gefahreneinstufungen: Acute Tox. 3 Oral - Eye Dam. 1
• Lagerklassenschlüssel: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flammpunkt (°F): 233.6 °F - closed cup
• Flammpunkt (°C): 112 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter