1-Naphthol-3,6-disulfonic acid disodium salt
Synonym(s):4-Hydroxy-2,7-naphthalenedisulfonic acid disodium salt
- CAS NO.：20349-39-7
- Empirical Formula: C10H9NaO7S2
- Molecular Weight: 328.28
- MDL number: MFCD00003966
- EINECS: 243-754-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:37:11
What is 1-Naphthol-3,6-disulfonic acid disodium salt?
Chemical properties
pinkish-grey presscake
Flammability and Explosibility
Not classified
Properties of 1-Naphthol-3,6-disulfonic acid disodium salt
| Boiling point: | 722.44℃[at 101 325 Pa] |
| Density | 1.816[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 1000g/L at 25℃ |
| CAS DataBase Reference | 20349-39-7(CAS DataBase Reference) |
| EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 4-hydroxy-, disodium salt (20349-39-7) |
Safety information for 1-Naphthol-3,6-disulfonic acid disodium salt
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 1-Naphthol-3,6-disulfonic acid disodium salt
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