Platinum(IV) iodide

  • Platinum tetraiodide
  • Tetraiodoplatinum
Formula
PtI4
Structure
Description
Brown-black powder

Registry Numbers and Inventories.
CAS
7790-46-7
EC (EINECS/ELINCS)
232-207-9
S: 20 26 36/37/39 43 45 60
UN (DOT)
3260
Merck
12,7685
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
I4Pt
Formula mass
702.7
Melting point, °C
130 (decomposes)
Boiling point, °C
 
Density
6.06 g/cm3 (20 C)
Solubility in water
Decomposes

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Store under lock and key and with access restricted to technical experts or their assistants only.
Protection
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Small spills/leaks
Use neutralizing agent. Ensure adequate ventilation. Do not flush with water or aqueous cleansing agents
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Acids, water/moisture.

Fire.
Fire fighting
Extinguish with CO2, sand, extinguishing powder. Do not use water. Wear self-contained respirator. Wear fully protective impervious suit.
Combustion products
Iodine, hydrogen iodide, metal oxide fumes.
Health
2
 
Flammability
0
 
 
Reactivity
1
 

Health.
Exposure limit(s)
NIOSH PEL 0.002 mg/m3 (as Pt)
Exposure effects
Platinum compounds, especially platinum halogen complexes, are sensitizers. Sensitized persons, on re-exposure to platinum salts, will show the clinical features of a Type 1 allergy: asthma and/or rhinitis and/or conjunctivitis and/or urticaria. A contact dermatitis may also occur. The symptoms of the allergic reaction to platinum salts may include any of the following: itchy red eyes, watering of the eyes, sneezing, runny nose, chest tightness, wheezing, breathlessness, cough, eczematous or urticarial (nettle rash type) skin lesions. Exposure to platinum salts in exceedingly small amounts, even below the level of physico-chemical detection, will produce symptoms in sensitized persons. Continued exposure will give symptoms of increasing severity and can eventually lead to chronic asthma. There is a risk of anaphylactic shock occuring in sensitized persons re-encountering platinum salts. Therefore, if sensitization has developed, further exposure to platinum compounds must not be permitted.
   Ingestion
Ingestion may cause damage to the mouth, throat and esophagus.
   Inhalation
Inhalation may result in respiratory effects such as inflammation, edema, and chemical pneumonitis. May cause coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting.
   Skin
May cause skin burns or irritation depending on the severity of the exposure.
   Eyes
Eye contact may result in permanent damage and complete vision loss.

First aid
 
   Ingestion
Seek medical treatment.
   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.
UN number
3260
Response guide
Hazard class
8
Packing Group
III