Iron(III) hydroxide oxide

  • Ferric oxide hydroxide
  • a-Iron hydroxide
  • Iron monohydroxide monooxide
  • Iron oxide yellow
  • Ferrous acid
  • C.I. 77492
Formula
FeO(OH)
Structure
Description
Fine, yellow, odorless powder.
Uses
Substance is used in purifying water.

Registry Numbers and Inventories.
CAS
20344-49-4
EC (EINECS/ELINCS)
243-746-4
Merck
12,4068
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
FeHO2
Formula mass
88.85

Hazards and Protection.
Storage
Store containers closed in ambient location.
Protection
Safety glasses with side shields or goggles. Rubber gloves.
Respirators
Use NIOSH/MSHA approved air purifying respirator as needed to control exposure.
Small spills/leaks
Carefully contain spilled material. Deposit spilled material in appropriate waste container. Wash spill area with soap and water.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Acids.

Fire.
Fire fighting
Fight surrounding fire.
Fire potential
Not flammable.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OSHA PEL 15 mg/m3 (Iron oxide)
Exposure effects
   Inhalation
Persons with respiratory conditions may be at increased risk.
   Eyes
May cause mechanical irritation to eyes.

First aid
 
   Ingestion
None needed for small amounts. For large amounts, if conscious, give water to drink and induce vomiting. Call physician.
   Inhalation
Remove to fresh air. If breathing is difficult give oxygen. See physician.
   Skin
Flush skin with soap and water for at least 15 min.
   Eyes
Flush eyes with water for at least 15 min. See physician if irritation persists.

Transport.