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IRON OXIDE, SPENT

4.2 - Spontaneously combustible
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The Chemical Identifier fields include common identification numbers, the NFPA diamond, U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 1309-37-1
  • 1317-61-9
  • 1332-37-2
  • 1345-25-1
DOT Hazard Label USCG CHRIS Code
  • Spontaneously Combustible
none
NIOSH Pocket Guide International Chem Safety Card
Iron oxide dust and fume (as Fe)external link
NFPA 704
data unavailable
General Description
Product from the iron-oxide process for the removal of sulfides from gases. In this process gases are passed over a mixture of iron(III) oxide and wood shavings. Liable to spontaneous heating. This heat may cause ignition. Easily ignited by sparks or heat from external sources. Used for precipitating copper or lead from solutions of their salts and in electric furnace steel operations.

The Hazard fields include special hazard alerts, air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
  • Pyrophoric
Air & Water Reactions
May be pyrophoric in air at ambient temperature, [Bailar, 1973, vol. 3, 1008-1009].
Fire Hazard
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated. (ERG, 2016)
Health Hazard
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. (ERG, 2016)
Reactivity Profile
IRON OXIDE, [SPENT] is iron oxide that has been converted to iron sulfide. A reducing agent. Can be regenerated to iron oxide by exposure to the air. Lliable to spontaneous heating.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above.

FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)
Firefighting
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

DO NOT USE WATER, CO2 OR FOAM ON MATERIAL ITSELF. Some of these materials may react violently with water. EXCEPTION: For Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite) UN1384, UN1923 and UN1929, USE FLOODING AMOUNTS OF WATER for SMALL AND LARGE fires to stop the reaction. Smothering will not work for these materials, they do not need air to burn.

SMALL FIRE: Dry chemical, soda ash, lime or DRY sand, EXCEPT for UN1384, UN1923, UN1929 and UN3342.

LARGE FIRE: DRY sand, dry chemical, soda ash or lime EXCEPT for UN1384, UN1923, UN1929 and UN3342, or withdraw from area and let fire burn. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Move containers from fire area if you can do it without risk.

FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers or in contact with substance. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2016)
Non-Fire Response
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk.

SMALL SPILL: EXCEPTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)
Protective Clothing
Skin: No recommendation is made specifying the need for personal protective equipment for the body.

Eyes: No recommendation is made specifying the need for eye protection.

Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift).

Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated.

Change: No recommendation is made specifying the need for the worker to change clothing after the work shift. (NIOSH, 2016)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Eye: If this chemical contacts the eyes, immediately wash the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately. Contact lenses should not be worn when working with this chemical.

Breathing: If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. Other measures are usually unnecessary. (NIOSH, 2016)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds. The information in CAMEO Chemicals comes from a variety of data sources.
Chemical Formula:
  • Fe2O3
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: data unavailable
Vapor Pressure: (approx)
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: data unavailable
Molecular Weight: data unavailable
Water Solubility: data unavailable
Ionization Potential: data unavailable
IDLH: 2500 mg/m3 For Iron oxide dust and fume (as Fe) (NIOSH, 2016)

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Iron oxide; (Ferric oxide) (1309-37-1) 15 mg/m3 360 mg/m3 2200 mg/m3
Iron(II,III) oxide; (Ferrosoferric oxide) (1317-61-9) 21 mg/m3 230 mg/m3 1400 mg/m3
Iron(II) oxide; (Ferrous oxide) (1345-25-1) 45 mg/m3 500 mg/m3 3000 mg/m3
(DOE, 2016)

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Department of Homeland Security's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

No regulatory information available.

DHS Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • ABDOSCAN
  • ALPHA-FERRIC OXIDE
  • ALPHA-IRON OXIDE
  • AM 125
  • ANCOR FR
  • ANCOR FY
  • AQI 2199
  • ARIABEL SIENNA 300406
  • AX 1000
  • AX 3000
  • B 6
  • B 6 (OXIDE)
  • BAYER S 11
  • BAYFERROX 105M
  • BAYFERROX 110
  • BAYFERROX 110M
  • BAYFERROX 111
  • BAYFERROX 120
  • BAYFERROX 120N
  • BAYFERROX 120NM
  • BAYFERROX 130
  • BAYFERROX 130BM
  • BAYFERROX 130M
  • BAYFERROX 140
  • BAYFERROX 140M
  • BAYFERROX 180M
  • BAYFERROX 306
  • BAYFERROX 316
  • BAYFERROX 318
  • BAYFERROX 330
  • BAYFERROX 8010
  • BAYFERROX 8220
  • BAYFERROX BLACK 318
  • BAYFERROX RED 120FS
  • BENGARA CH 2-223
  • BENGARA EP 40
  • BENGARA N 45
  • BK 5099
  • BM 611
  • BUS
  • C 73
  • C 73 (CATALYST)
  • C.I. 77489
  • C.I. 77491
  • C.I. PIGMENT RED 101
  • CAPPOXYT RED 4437B
  • CAPUT MORTUUM
  • CAPUT MORTUUM LIGHT
  • CERVEN H
  • COLCOTHAR
  • COLLIRON
  • COLLOIDAL FERRIC OXIDE
  • COLOR MAT 220
  • CORONA 10863
  • COSMETIC RED OXIDE
  • CP 21
  • CROCUS
  • CROCUS (IRON OXIDE)
  • DEANOX
  • DEFIC-R 1007
  • DIIRON TRIOXIDE
  • DISPERSE HG 838
  • DPN 250BX
  • E 1352
  • E 333
  • E 335
  • E 335 (OXIDE)
  • EC 301
  • EC 371
  • 100ED
  • EFV 100/200
  • ENGLISH IRON OXIDE RED
  • ENGLISH RED
  • EP-A 0014382
  • EPP 2000
  • EPT 1002
  • EPT 2000
  • ETHIOPS IRON
  • FELAC
  • FERRIC OXIDE
  • FERRIC SESQUIOXIDE
  • FERRIFERROUS OXIDE
  • FERRIFERROUS OXIDE (FE3O4)
  • FERRIX 8600
  • FERRO RED VX 3100
  • FERROBIONAT
  • FERROFLUID EMG
  • FERROFLUID EMG 705
  • FERROFLUID EMG 805
  • FERROSOFERRIC OXIDE
  • FERROUS OXIDE
  • FERRUGO
  • FINE FERRIC RED 35
  • FRO 3
  • FW 17134
  • FW 1790
  • FX 6410
  • 40G
  • GAMMA-FERRIC OXIDE
  • GAMMA-IRON OXIDE (FE2O3)
  • GAMMA-MYD
  • GASTROMARK
  • GX 1104
  • ICI 35-4
  • IO BLACK 318
  • IRON FERRITE
  • IRON MINIUM
  • IRON MONOOXIDE
  • IRON MONOXIDE
  • IRON OXIDE
  • IRON OXIDE BLACK
  • IRON OXIDE RED
  • IRON OXIDE RED TRANSPARENT 288VN
  • IRON OXIDE, SPENT
  • IRON OXIDE, [SPENT]
  • IRON SESQUIOXIDE
  • IRON SESQUIOXIDE (FE2O3)
  • IRON SPONGE, SPENT
  • IRON TRIOXIDE
  • IRON(3+) OXIDE
  • IRON(II) OXIDE
  • IRON(III) OXIDE
  • JEWELER'S ROUGE
  • KBN 400
  • KFA-NH
  • KFH-NA
  • KM
  • KM (PIGMENT)
  • KROKUS
  • L 12
  • L 12 (PIGMENT)
  • LAMINOX F
  • LAUTAMASSE
  • LEVANOX RED 130Z01
  • LKN-M
  • LN 1331
  • LUCONYL RED 3396
  • LUMIREM
  • LUXMASSE
  • 140M
  • 160M
  • MAG 1730
  • MAGNETITE
  • MAPICO RED 297
  • MAPICO RED 347
  • MAPICO RED 567
  • MAPICO RED R 220-3
  • MAPICO RED R 516L
  • MAT 502
  • MB 22
  • MG 1300
  • MG 1306
  • MG 9300
  • MG-WMK
  • MG-WS
  • MICROSPIN RED
  • MIO 2F
  • MIO 40GN
  • MIO-KS
  • MION 37
  • MION 46
  • MMY 40CT
  • MO 2230
  • MO 4232
  • MO 4431
  • MO 7029
  • MO 8029
  • MTA 230
  • MTA 740
  • MTS 010
  • MX 450
  • NANOTITE 30
  • NANOTITE 60
  • NAT
  • NSK 500
  • NYB 40
  • NYR 60N
  • OLKZ
  • OX 8370
  • PFERROX 2228
  • PFERROX 2228HC
  • PFERROX 2380
  • PFERROX MO 2228
  • PIGDEX 100
  • PIGMENT RED 101
  • PM 1
  • PM 1 (OXIDE)
  • PM 1A
  • PM 1A (OXIDE)
  • PMZ
  • PRODORITE FILLER
  • PROTOHEMATITE
  • PRUSSIAN RED
  • R 1299
  • R 1299 (PIGMENT)
  • R 5098
  • R 5098 (OXIDE)
  • R 8098
  • RED 110M
  • RED IRON OXIDE
  • RED OXIDE
  • RED OXIDE 881-1045F
  • RO 8097
  • ROUGE
  • ROUGE (IRON OXIDE)
  • RUBIGO
  • S 2400 RED 2
  • SANGOL
  • SANYLENE BROWN 3RLM
  • SE-DBS
  • SICOFLUSH L RED 2817
  • SICOMET BROWN 75
  • SICOTRANS RED L 2815
  • SICOTRANS RED L 2816
  • SICOTRANS RED L 2817
  • SICOTRANS RED L 2915D
  • SICOTRANS RED L 2917
  • SICOTRANS RED NB-L 2817
  • SICOTRANS RED S 402
  • SIFERRIT
  • SM 200
  • SM 200 (OXIDE)
  • SPBL
  • ST 801
  • SURIK 2
  • 303T
  • TAROX BL 100
  • TAROX BL 200
  • TAROX BL 500
  • TAROX R 516L
  • TAROX T 10A
  • TEFV
  • TEFV 200/300
  • TEFV 250/400
  • TENYO 501
  • TF 100
  • TF 100 (OXIDE)
  • TM 620
  • TMB 105T
  • TODA COLOR 120R
  • TODA COLOR 130ED
  • TODA COLOR 160ED
  • TODA COLOR 180ED
  • TR 420S
  • TRANSOXIDE RED 30-1005
  • TRIIRON TETRAOXIDE
  • TRIIRON TETROXIDE
  • TURKEY RED
  • VENETIAN RED
  • YLO 2288B
  • Z 250

Version 2.7.1 rev 1