4,5-Dihydroxynaphthalene-2,7-disulfonic Acid, Disodium Salt Dihydrate, 98%, ACROS Organics™

Brand:  Acros Organics 155191000

Product Code. 10011790

Chemical Identifiers

• Chemical Name or Material: 4,5-Dihydroxynaphthalene-2,7-disulfonic acid, disodium salt dihydrate
• CAS Min %: 97.5
• Assay: 98%
• Molecular Formula: C₁₀H₆Na₂O₈S₂·₂H₂O
• MDL Number: MFCD00150612

• CAS: 5808-22-0
• CAS Max %: 100.0
• Assay Percent Range: 98%
• Formula Weight: 400.28
• Synonym: 1,8-Dihydroxynaphthalene-3,6-disulfonic acid, disodium salt dihydrate, Chromotropic acid, disodium salt dihydrate

Specifications

• Chemical Name or Material: 4,5-Dihydroxynaphthalene-2,7-disulfonic acid, disodium salt dihydrate
• Melting Point: > 300.0°C
• CAS: 5808-22-0
• CAS Max %: 100.0
• Infrared Spectrum: Authentic
• Suitability: (for NO3 and HCHO determination) passes
• Assay: 98%
• Molecular Formula: C₁₀H₆Na₂O₈S₂·₂H₂O
• MDL Number: MFCD00150612
• Merck Index: 15, 2245

• Color: Off-white to gray, beige or light brown
• Quantity: 100g
• CAS Min %: 97.5
• Insoluble in Water: 0.02% max.
• Packaging: Glass bottle
• Physical Form: Powder
• Assay Percent Range: 98%
• Formula Weight: 400.28
• Beilstein: 11, 307
• Synonym: 1,8-Dihydroxynaphthalene-3,6-disulfonic acid, disodium salt dihydrate, Chromotropic acid, disodium salt dihydrate

Safety and Handling

Product Identifier

• 4,5-Dihydroxynaphthalene-2,7-disulfonic acid, disodium salt dihydrate

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.
• H315-Causes skin irritation.

Precautionary Statement

• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.