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1,5-Naphthalenedisulfonic acid Structure

1,5-Naphthalenedisulfonic acid

Chemical Properties

Melting point 242.5°C (rough estimate)
Boiling point 400.53°C (rough estimate)
Density  1.7040
vapor pressure  0Pa at 25℃
refractive index  1.5630 (estimate)
storage temp.  Store below +30°C.
pka -0.60±0.40(Predicted)
color  Crystals or plates
Water Solubility  90.52g/L at 25℃
LogP -0.94
CAS DataBase Reference 81-04-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII E8FPK78470
EPA Substance Registry System 1,5-Naphthalenedisulfonic acid (81-04-9)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H314-H318
Precautionary statements P260-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310
Hazard Codes  C
Risk Statements  34
Safety Statements  22-24/25-45-36/37/39-26
RIDADR  UN 2585
WGK Germany  1
HazardClass  8
PackingGroup  III
HS Code  2904100090
Toxicity LD50 orl-rat: 30 g/kg GISAAA 45(3),73,80

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