Thionalide

  • Thioglycolic-b-aminonaphthalide
  • N-(2-Naphthyl)mercaptoacetamide
  • 2-Mercapto-N-2-naphthylacetamide
Formula
C12H11NOS
Structure
Uses
Used as a a reagent for copper, mercury, silver, thallium, and bismuth.

Registry Numbers and Inventories.
CAS
93-42-5
EC (EINECS/ELINCS)
202-245-0
20/21/22 36/37/38
9 26 36/37
Merck
12,9480
Beilstein/Gmelin
644331
Beilstein Reference
3-12-00-03052

Properties.
Formula
C12H11NOS
Formula mass
217.29
Melting point, °C
111-112
Boiling point, °C
458
Vapor pressure, mmHg
1E-8 (25 C)
Solubility in water
0.1 g/L (20 C)
pKa/pKb
8.43 (pKa)
Heat of vaporization
71.8 kJ/mol

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry place in tightly closed containers.
Protection
Wear protective equipment. Keep unprotected persons away. Ensure adequate ventilation
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Do not store together with oxidizing and acidic materials.

Fire.
Flash Point,°C
231
Fire fighting
Extinguish using CO2, extinguishing powder or water spray. Fight larger fire with alcohol resistant foam. Wear self-contained respirato and fully protective impervious suit.
Combustion products
Oxides of carbon, nitrogen and sulfur.
Health
1
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure effects
Thiols/mercaptans are skin, eye and respiratory irritants.  Inhalation can cause central nervous system effects.  Strong penetrating odor acts to minimize inhalation exposure.

First aid
 
   Ingestion
Seek immediate medical advice.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Transport.