Iodoform

  • Triiodomethane
Formula
CHI3
Structure
Description
Bright yellow or yellow powder or crystals. Penetrating odor.
Uses
Iodoform is used as a component of adhesives and as a polymerization control agent.

Registry Numbers and Inventories.
CAS
75-47-8
EC (EINECS/ELINCS)
200-874-5
R 20/21/22 36/37/38
S 26 36/37/39
RTECS
PB7000000
RTECS class
Tumorigen; Drug; Mutagen
Merck
13,5055
Beilstein/Gmelin
1697010
Beilstein Reference
4-01-00-00097
Swiss Giftliste 1
G-1723
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CHI3
Formula mass
393.73
Melting point, °C
123
Boiling point, °C
218
Vapor pressure, mmHg
0.034 (25 C)
Vapor density (air=1)
4.1
Odor Threshold Odor threshold 5.0 ppb
Critical temperature
585
Critical pressure
55.56
Density
4.008 g/cm3 (17 C)
Solubility in water
100 mg/L
Refractive index
1.786 (20 C)
Partition coefficient, pKow
3.83
Heat of fusion
16.45 kJ/mol
Heat of vaporization
46.8 kJ/mol
Heat of combustion
-678 kJ/mol

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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, strong bases, alkali metals, magnesium, lithium, acetone, silver nitrate, mercuric oxide, calomel, tannin, balsam peru.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen iodide.

Fire.
Flash Point,°C
204
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. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam. Use agent most appropriate to extinguish fire.
Fire potential
This material is nonflammable
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
0
 
 
Reactivity
1
 

Health.
Exposure limit(s)
TLV: 0.6 ppm; 10 mg/m3 (as TWA) (ACGIH 1992-1993) NIOSH REL: TWA 0.6 ppm (10 mg/m3)
Poison_Class
2
Exposure effects
Headache, dizziness, confusion, delirium, and hallucinations may be noted following severe intoxication. Seizure has been reported following mediastinal irrigation.
   Ingestion
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Harmful if inhaled. May cause respiratory tract irritation.
   Skin
May be absorbed through the skin. May cause dermatitis.
   Eyes
Causes eye irritation.

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 immediately. 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. Do NOT allow victim to rub or keep eyes closed.

Transport.
36. Halogenated hydrocarbons