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Naphthalene-2-sulfonic acid  Structure

Naphthalene-2-sulfonic acid

Chemical Properties

Melting point 124 °C
Boiling point 317.43°C (rough estimate)
Density  1.44 g/cm
vapor pressure  2.33Pa at 20℃
refractive index  1.4998 (estimate)
storage temp.  Inert atmosphere,Room Temperature
solubility  water: freely soluble(lit.)
form  solid
pka 0.27±0.10(Predicted)
color  White
Water Solubility  Soluble in water.
Sensitive  Hygroscopic
Merck  6377
LogP -0.944 at 23℃
CAS DataBase Reference 120-18-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII O9S4K2S25E
EPA Substance Registry System 2-Naphthalenesulfonic acid (120-18-3)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H290-H314
Precautionary statements P260-P280-P301+P330+P331-P303+P361+P353-P305+P351+P338+P310
Hazard Codes  C,F
Risk Statements  35-34-11
Safety Statements  26-36/37/39-45-16
RIDADR  UN 2583 8/PG 2
WGK Germany  1
RTECS  QK1225000
Hazard Note  Corrosive
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  2904100090
NFPA 704:
0
3 1

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