Quinhydrone, 97%, Thermo Scientific Chemicals

Description

Used to measure the hydrogen ion concentration (pH) of a solution in a chemical experiment. It provides an alternative to the commonly used glass electrode in a pH meter.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Used to measure the hydrogen ion concentration (pH) of a solution in a chemical experiment. It provides an alternative to the commonly used glass electrode in a pH meter.

Solubility
Slightly soluble in water 4 g/L (20°C).

Notes
Air & Light Sensitive. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 106-34-3
• Molecular Formula: C12H10O4
• Molecular Weight (g/mol): 218.21
• MDL Number: MFCD00010310
• InChI Key: BDJXVNRFAQSMAA-UHFFFAOYSA-N
• Synonym: quinhydrone, green hydroquinone, p-benzoquinhydrone, chinhydron, chinhydron czech, unii-p4a66lq3qj, hydroquinone, compd. with p-benzoquinone, p-benzoquinone, compd. with hydroquinone, 2,5-cyclohexadiene-1,4-dione, compd. with 1,4-benzenediol 1:1, p-benzoquinone-hydroquinone compound 1:1
• PubChem CID: 7801
• ChEBI: CHEBI:26491
• IUPAC Name: benzene-1,4-diol;cyclohexa-2,5-diene-1,4-dione
• SMILES: OC1=CC=C(O)C=C1.O=C1C=CC(=O)C=C1

• Melting Point: 168°C to 171°C
• Density: 1.4
• Quantity: 100 g
• UN Number: UN2811
• Beilstein: 3919222
• Sensitivity: Air and light sensitive
• Merck Index: 14,8058
• Solubility Information: Slightly soluble in water 4g/L (20°C).
• Formula Weight: 218.21
• Percent Purity: 97%
• Chemical Name or Material: Quinhydrone

Safety and Handling

Hazard Category	H301-H315-H319-H335
Hazard Statement	GHS H Statement H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P261-P264b-P270-P271-P280-P301+P310-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P362-P501c
DOTInformation	Transport Hazard Class: 6.1; Packing Group: III; Proper Shipping Name: TOXIC SOLIDS, ORGANIC, N.O.S.
EINECSNumber	203-387-6
RTECSNumber	VA4550000
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Nitrogen

SDS

RUO – Research Use Only