DTDC iodide

  • Dithiazanine iodide
  • 3,3'-Diethylthiadicarbocyanine iodide
  • 3,3'-Diethyl-2,2'-thiadicarbocyanine iodide
  • [2-Bis(3-ethylbenzothiazolyl)]pentamethine cyanine iodide
  • 3-Ethyl-2-(5-(3-ethylbenzothiazolin-2-ylidene)penta-1,3-dienyl)benzothiazolium iodide
  • Benzothiazolium, 3-ethyl-2-[5-(3-ethyl-2(3H)-benzothiazolylidene)-1,3-pentadienyl]-, iodide
Formula
C23H23IN2S2
Structure
Description
Green, needle-like crystals.
Uses
Sensitizer for photographic emulsions.

Registry Numbers and Inventories.
CAS
514-73-8
EC (EINECS/ELINCS)
208-186-7
RTECS
DL7060000
RTECS class
Other
UN (DOT)
2811
Merck
12,3434
Beilstein/Gmelin
3838938
Beilstein Reference
4-27-00-08550
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C23H23N2S2*I
Formula mass
518.49
Melting point, °C
251 - 253
Vapor density (air=1)
17.9

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Store in opaque, air-tight containers. Store protected from light.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light. Wash clothing before reuse.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen iodide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
When heated to decomposition, it emits toxic fumes of iodine, sulfur oxides, and nitrogen oxides.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation. Inhalation of dust may cause respiratory tract irritation.
   Skin
Causes mild skin irritation.
   Eyes
Causes eye irritation. Contact may cause discoloration, redness, swelling, and formation of eye lesions.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2811
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
DTZ