380474

2-Hydroxyethyl disulfide

technical grade

• Synonym(s): 2,2′-Dithiodiethanol, Bis(2-hydroxyethyl) disulfide
• Linear Formula: HOCH₂CH₂SSCH₂CH₂OH
• CAS Number: 1892-29-1
• Molecular Weight: 154.25
• Beilstein: 1735851
• EC Number: 217-576-6
• MDL number: MFCD00002906
• UNSPSC Code: 12162002
• PubChem Substance ID: 24863744
• NACRES: NA.23

Properties

• grade: technical grade
• Quality Level: 200
• form: liquid
• refractive index: n20/D 1.57 (lit.)
• bp: 158-163 °C/3.5 mmHg (lit.)
• mp: 25-27 °C (lit.)
• density: 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
• InChI key: KYNFOMQIXZUKRK-UHFFFAOYSA-N

Description

General description

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.

Application

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).

Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H301,H318
• Precautionary Statements: P264 - P280 - P301 + P310 - P305 + P351 + P338 - P405 - P501
• Hazard Classifications: Acute Tox. 3 Oral - Eye Dam. 1
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flash Point(F): 233.6 °F - closed cup
• Flash Point(C): 112 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves