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2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt
Also known as: 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt · 5864-85-7 · C.I. Acid Red 22 disodium salt · DTXSID601023156
- CAS No.
- 5864-85-7
- Formula
- C18H14N2Na2O8S2
- Molar mass
- 496.4 g/mol
- PubChem CID
- 22154
Summary
2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt (C18H14N2Na2O8S2), CAS 5864-85-7. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Physical properties
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Hazards
No GHS data listed for this product yet.
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
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EU harmonised classification (ECHA C&L)
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Transport
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Open comparator with 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium saltPractical safety notes
- Handle 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt in a ventilated area, wear safety glasses and nitrile gloves, and consult the manufacturer's SDS before first use.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt flammable?+
2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt (CAS 5864-85-7) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.
What PPE should I wear when handling 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt?+
Safety glasses with side shields and nitrile gloves are the baseline. Ventilation should be sufficient to keep vapours below the occupational exposure limit. Check SDS section 8 for material-specific breakthrough times.
How should 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt be stored?+
Store 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt (CAS 5864-85-7) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials.
Is 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-methylphenyl)azo)-, disodium salt?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
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