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EC number: 266-007-8 | CAS number: 65996-74-9 The oxidized surface of steel produced during reheating, conditioning, hot rolling, and hot forming operations. This substance is usually removed by process waters used for descaling, roll and material cooling, and other purposes. It is subsequently recovered by gravity separation techniques. Composed primarily of high-purity iron oxides. May contain varying amounts of other oxides, elements, and trace compounds.
Substance identity
Identification
- Display Name:
- Mill scale (ferrous metal)
- EC Number:
- 266-007-8
- EC Name:
- Mill scale (ferrous metal)
- CAS Number:
- 65996-74-9
- Molecular formula:
- Not available (see remarks field below)
- IUPAC Name:
- Mill Scale (ferrous metal)
Type of Substance
- Composition:
- UVCB
- Origin:
- inorganic
Substance Identifiers open all close all
Compositions
Boundary Composition(s) open all close all
- State Form:
- solid: bulk
Constituent 1
- Reference substance name:
- Iron
- EC Number:
- 231-096-4
- EC Name:
- Iron
- CAS Number:
- 7439-89-6
- Molecular formula:
- Fe
- IUPAC Name:
- Iron
Constituent 2
- Reference substance name:
- Oxygen
- EC Number:
- 231-956-9
- EC Name:
- Oxygen
- CAS Number:
- 7782-44-7
- Molecular formula:
- O
- IUPAC Name:
- Oxygen
Constituent 3
- Reference substance name:
- Calcium
- EC Number:
- 231-179-5
- EC Name:
- Calcium
- CAS Number:
- 7440-70-2
- Molecular formula:
- Ca
- IUPAC Name:
- calcium
Constituent 4
- Reference substance name:
- Chromium
- EC Number:
- 231-157-5
- EC Name:
- Chromium
- CAS Number:
- 7440-47-3
- Molecular formula:
- Cr
- IUPAC Name:
- Chromium
Constituent 5
- Reference substance name:
- Silicon
- EC Number:
- 231-130-8
- EC Name:
- Silicon
- CAS Number:
- 7440-21-3
- Molecular formula:
- Si
- IUPAC Name:
- Silicon
Constituent 6
- Reference substance name:
- Carbon
- EC Number:
- 231-153-3
- EC Name:
- Carbon
- CAS Number:
- 7440-44-0
- Molecular formula:
- C
- IUPAC Name:
- Carbon
Constituent 7
- Reference substance name:
- Aluminium
- EC Number:
- 231-072-3
- EC Name:
- Aluminium
- CAS Number:
- 7429-90-5
- Molecular formula:
- Al
- IUPAC Name:
- aluminum
Constituent 8
- Reference substance name:
- unknown impurities
- IUPAC Name:
- unknown impurities
- State Form:
- solid: bulk
Constituent 1
- Reference substance name:
- Iron oxide
- EC Number:
- 215-721-8
- EC Name:
- Iron oxide
- CAS Number:
- 1345-25-1
- Molecular formula:
- FeO
- IUPAC Name:
- oxoiron
Constituent 2
- Reference substance name:
- Diiron trioxide
- EC Number:
- 215-168-2
- EC Name:
- Diiron trioxide
- CAS Number:
- 1309-37-1
- Molecular formula:
- Fe2O3
- IUPAC Name:
- diiron trioxide
Constituent 3
- Reference substance name:
- Iron
- EC Number:
- 231-096-4
- EC Name:
- Iron
- CAS Number:
- 7439-89-6
- Molecular formula:
- Fe
- IUPAC Name:
- Iron
Constituent 4
- Reference substance name:
- Calcium oxide
- EC Number:
- 215-138-9
- EC Name:
- Calcium oxide
- CAS Number:
- 1305-78-8
- Molecular formula:
- CaO
- IUPAC Name:
- oxocalcium
Constituent 5
- Reference substance name:
- Chromium (III) oxide
- EC Number:
- 215-160-9
- EC Name:
- Chromium (III) oxide
- CAS Number:
- 1308-38-9
- Molecular formula:
- Cr2O3
- IUPAC Name:
- trioxochromium
Constituent 6
- Reference substance name:
- Quartz (SiO2)
- EC Number:
- 238-878-4
- EC Name:
- Quartz (SiO2)
- CAS Number:
- 14808-60-7
- Molecular formula:
- SiO2
- IUPAC Name:
- silicon dioxide (α-quartz)
Constituent 7
- Reference substance name:
- Carbon
- EC Number:
- 231-153-3
- EC Name:
- Carbon
- CAS Number:
- 7440-44-0
- Molecular formula:
- C
- IUPAC Name:
- Carbon
Constituent 8
- Reference substance name:
- Aluminium oxide
- EC Number:
- 215-691-6
- EC Name:
- Aluminium oxide
- CAS Number:
- 1344-28-1
- Molecular formula:
- Al2O3
- IUPAC Name:
- oxo[(oxoalumanyl)oxy]alumane
Constituent 9
- Reference substance name:
- unknown impurities
- IUPAC Name:
- unknown impurities
Legal Entity Composition(s) open all close all
- State Form:
- solid: bulk
Constituent 1
- Reference substance name:
- Iron oxide
- EC Number:
- 215-721-8
- EC Name:
- Iron oxide
- CAS Number:
- 1345-25-1
- Molecular formula:
- FeO
- IUPAC Name:
- oxoiron
Constituent 2
- Reference substance name:
- Diiron trioxide
- EC Number:
- 215-168-2
- EC Name:
- Diiron trioxide
- CAS Number:
- 1309-37-1
- Molecular formula:
- Fe2O3
- IUPAC Name:
- diiron trioxide
Constituent 3
- Reference substance name:
- Iron
- EC Number:
- 231-096-4
- EC Name:
- Iron
- CAS Number:
- 7439-89-6
- Molecular formula:
- Fe
- IUPAC Name:
- Iron
Constituent 4
- Reference substance name:
- Calcium oxide
- EC Number:
- 215-138-9
- EC Name:
- Calcium oxide
- CAS Number:
- 1305-78-8
- Molecular formula:
- CaO
- IUPAC Name:
- oxocalcium