Chromotropic acid disodium salt dihydrate

Purity: ACS

Synonym(s): Disodium Chromotropate Dihydrate; 1, 8-Dihydroxynaphthalene-3, 6-disulfonic acid disodium salt; 4, 5-Dihydroxynaphthalene-2, 7-disulfonic acid disodium salt; Chromogen C; Chromotropic Acid Disodium Salt; Mordant Brown 7; Chromogen C Dihydrate; 1, 8-Dihydroxynaphthalene-3, 6-disulfonic Acid Disodium Salt Dihydrate; Mordant Brown 7 Dihydrate

Formula: C10H6Na2O8S2·2H2O Molecular Weight: 400.29

CAS Number: 5808-22-0 Beilstein Number: 11307 EC Number: 204-972-9 MDL Number: MFCD00150612 PubChem CID: 2723846

Properties

Shelf life: 1460 days

Solubility: Soluble in water (125 g/l 20 °C)

Sensitivity: Light Sensitive

Boiling point:

Melting point: 300°C

InChl: InChI=1S/C10H8O8S2.2Na.2H2O/c11-8-3-6(19(13, 14)15)1-5-2-7(20(16, 17)18)4-9(12)10(5)8; ; ; ; /h1-4, 11-12H, (H, 13, 14, 15)(H, 16, 17, 18); ; ; 2*1H2/q; 2*+1; ; /p-2

Safety Information

Pictograms: GHS07

Signal Word: Warning

Hazard Statements: H315; H319; H335

Precautionary Statements: P261; P305+P351+P338; P280; P302+P352; P321; P405; P501; P264; P271; P304+P340; P403+P233; P362+P364; P264+P265; P337+P317; P332+P317; P319

WGK: 3

Storage:

Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves