Chromium selenide

  • Chromium monoselenide
Formula
CrSe
Description
Black, odorless powder.

Registry Numbers and Inventories.
CAS
12053-13-3
EC (EINECS/ELINCS)
234-999-1
R: 23/25 33 50/53
S: 20/21 28 45 60 61
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
CrSe
Formula mass
130.96
Melting point, °C
~1500
Boiling point, °C
 
Density
6.74 g/cm3 (20 C)
Solubility in water
Insoluble

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.
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Oxidizing agents.

Fire.
Fire fighting
Use fire fighting measures that suit the surrounding fire. Wear self-contained respirator. Wear fully protective impervious suit.
Fire potential
Product is not flammable.
Health
1
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure limit(s)
NIOSH PEL: 0.5 mg/m3 (as Cr); 0.2 mg/m3 (as Se)
Exposure effects
Chromium powder, chromium (II) and chromium (III) compounds may cause nausea, diarrhea, vomiting, skin and eye irritation and pneumoconiosis. Although less likely than Cr(VI) compounds, the NTP considers all chromium to be potentially carcinogenic. Selenium may cause amyotrophic lateral sclerosis, bronchial irritation, gastrointestinal distress, vasopharyngeal irritation, garlic odor on breath and sweat, metallic taste, pallor, irritability, excessive fatigue, loss of fingernails and hair, pulmonary edema, anemia and weight loss.

First aid
 
   Ingestion
Do not induce vomiting; immediately call for medical help. 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.