Cerium(IV) sulfate tetrahydrate

  • Ceric sulfate tetrahydrate
Formula
Ce(SO4)2.4H2O
Structure
Description
yellow-orange orthorhombic crystals

Registry Numbers and Inventories.
CAS
10294-42-5
EC (EINECS/ELINCS)
237-029-5
EC Class
irritant
S 26 36/37/39 45
RTECS
WS6960000
UN (DOT)
3260
Merck
12,2036
Beilstein/Gmelin
60205 (G)
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
CeO8S2 . 4H2O
Formula mass
404.30
Melting point, °C
180 - 200
Decomposition point, °C
180
Density
3.91 g/cm3 (20 C)
Solubility in water
38 g/L (50 C)

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Do not store near combustible materials. Keep away from reducing agents. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with clothing and other combustible materials. Do not get on skin or in eyes. 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 gloves to prevent skin exposure. Clothing: Wear a chemical apron. Wear appropriate 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
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Remove all sources of ignition. Do not use combustible materials such as paper towels to clean up spill.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Reducing agents.
Decomposition
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. Strong oxidizer. Contact with combustible materials may cause a fire. Use water with caution and in flooding amounts. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. If water is the only media available, use in flooding amounts. Contact professional fire-fighters immediately.
Health
2
 
Flammability
0
 
 
Reactivity
1
 

Health.
Poison_Class
4 (Substances and products that must be considered harmful)
Exposure effects
   Ingestion
May cause nausea, vomiting, and diarrhea, possibly with blood.
   Inhalation
May cause respiratory tract irritation. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema.
   Skin
May cause severe irritation and possible burns.
   Eyes
May cause eye irritation. May cause conjunctivitis. May cause eye injury. May cause permanent corneal opacification.

First aid
 
   Ingestion
Do NOT induce vomiting. 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
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid. Wash clothing before reuse. Flush skin with plenty of soap and water.
   Eyes
Immediately 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
3260
Response guide
HS Code
2846 10 00