Registration Dossier

Identification

Chemical structure
Display Name:
Bentonite, acid-leached
EC Number:
274-324-8
EC Name:
Bentonite, acid-leached
CAS Number:
70131-50-9
Molecular formula:
unspecified for this UVCB substance
IUPAC Name:
silanedione alumane calcium hydrate silane sodium

Type of substance

Composition:
UVCB
Origin:
inorganic

Total tonnage band

Total range:
100 000 - 1 000 000 tonnes per annum

REACH

Registered as:
FULL
Submitted:
Joint Submission

Publication dates

First published:
03-Apr-2011
Last modified:
23-Sep-2020

Chemical safety assessment

Performed for this substance:
YES

Compositions open all close all

Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Reference substance name:
not applicable
Molecular formula:
not applicable
IUPAC Name:
not applicable
Constituent 2
Chemical structure
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 (quartz)
Constituent 3
Chemical structure
Reference substance name:
Cristobalite
EC Number:
238-455-4
EC Name:
Cristobalite
CAS Number:
14464-46-1
Molecular formula:
O2Si
IUPAC Name:
dioxosilane (cristobalite)
Constituent 4
Chemical structure
Reference substance name:
Feldspar-group minerals
EC Number:
270-666-7
EC Name:
Feldspar-group minerals
CAS Number:
68476-25-5
Molecular formula:
NaAlSi3O8
IUPAC Name:
Feldspar-group minerals
Constituent 5
Reference substance name:
Amorphous material
Molecular formula:
not applicable
IUPAC Name:
Amorphous material
Type:
legal entity composition of the substance


Constituent 1
Reference substance name:
Smectite-group minerals
EC Number:
235-374-6
EC Name:
Smectite-group minerals
CAS Number:
12199-37-0
Molecular formula:
Not available
IUPAC Name:
Hydrated sodium calcium aluminum silicate
Constituent 2
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 3
Chemical structure
Reference substance name:
Feldspar-group minerals
EC Number:
270-666-7
EC Name:
Feldspar-group minerals
CAS Number:
68476-25-5
Molecular formula:
NaAlSi3O8
IUPAC Name:
Feldspar-group minerals
Constituent 4
Chemical structure
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 (quartz)
Constituent 5
Chemical structure
Reference substance name:
Diiron trioxide
EC Number:
215-168-2
EC Name:
Diiron trioxide
CAS Number:
1309-37-1
Molecular formula:
Fe2O3
IUPAC Name:
Iron(III)oxide
Constituent 6
Chemical structure
Reference substance name:
Iron hydroxide oxide
EC Number:
243-746-4
EC Name:
Iron hydroxide oxide
CAS Number:
20344-49-4
Molecular formula:
FeHO2
IUPAC Name:
Iron Hydroxide oxide (Goethite)
Constituent 7
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
CAS Number:
7778-18-9
Molecular formula:
Ca.H2O4S
IUPAC Name:
calcium sulfate
Constituent 8
Reference substance name:
Kaolin
EC Number:
310-194-1
EC Name:
Kaolin
CAS Number:
1332-58-7
IUPAC Name:
Aluminum Silicate
Constituent 9
Reference substance name:
Reference substance 001
CAS Number:
12207-14-6
Molecular formula:
KFe3+3(OH)6(SO4)2
Type:
legal entity composition of the substance


Constituent 1
Reference substance name:
Smectite-group minerals
EC Number:
235-374-6
EC Name:
Smectite-group minerals
CAS Number:
12199-37-0
Molecular formula:
Not available
IUPAC Name:
Hydrated sodium calcium aluminum silicate
Constituent 2
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 3
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
CAS Number:
7778-18-9
Molecular formula:
Ca.H2O4S
IUPAC Name:
calcium sulfate
Constituent 4
Chemical structure
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 (quartz)
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Reference substance name:
Smectite-group minerals
EC Number:
235-374-6
EC Name:
Smectite-group minerals
CAS Number:
12199-37-0
Molecular formula:
Not available
IUPAC Name:
Hydrated sodium calcium aluminum silicate
Constituent 2
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 3
Chemical structure
Reference substance name:
Feldspar-group minerals
EC Number:
270-666-7
EC Name:
Feldspar-group minerals
CAS Number:
68476-25-5
Molecular formula:
NaAlSi3O8
IUPAC Name:
Feldspar-group minerals
Constituent 4
Chemical structure
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 (quartz)
Constituent 5
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
CAS Number:
7778-18-9
Molecular formula:
Ca.H2O4S
IUPAC Name:
calcium sulfate
Constituent 6
Reference substance name:
Naturally occurring substances
EC Number:
310-127-6
EC Name:
Naturally occurring substances
CAS Number:
12174-37-7
Molecular formula:
Not available
IUPAC Name:
pyroxene
Type:
legal entity composition of the substance


Constituent 1
Reference substance name:
Smectite-group minerals
EC Number:
235-374-6
EC Name:
Smectite-group minerals
CAS Number:
12199-37-0
Molecular formula:
Not available
IUPAC Name:
Hydrated sodium calcium aluminum silicate
Constituent 2
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 3
Chemical structure
Reference substance name:
Feldspar-group minerals
EC Number:
270-666-7
EC Name:
Feldspar-group minerals
CAS Number:
68476-25-5
Molecular formula:
NaAlSi3O8
IUPAC Name:
Feldspar-group minerals
Constituent 4
Chemical structure
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 (quartz)
Constituent 5
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
CAS Number:
7778-18-9
Molecular formula:
Ca.H2O4S
IUPAC Name:
calcium sulfate
Constituent 6
Reference substance name:
Naturally occurring substances
EC Number:
310-127-6
EC Name:
Naturally occurring substances
CAS Number:
12174-37-7
Molecular formula:
Not available
IUPAC Name:
pyroxene
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 2
Chemical structure
Reference substance name:
Aluminium oxide
EC Number:
215-691-6
EC Name:
Aluminium oxide
CAS Number:
1344-28-1
Molecular formula:
Al2O3
IUPAC Name:
Aluminium oxide
Constituent 3
Chemical structure
Reference substance name:
Diiron trioxide
EC Number:
215-168-2
EC Name:
Diiron trioxide
CAS Number:
1309-37-1
Molecular formula:
Fe2O3
IUPAC Name:
Iron(III)oxide
Constituent 4
Chemical structure
Reference substance name:
Calcium oxide
EC Number:
215-138-9
EC Name:
Calcium oxide
CAS Number:
1305-78-8
Molecular formula:
CaO
IUPAC Name:
Calcium oxide
Constituent 5
Chemical structure
Reference substance name:
Magnesium oxide
EC Number:
215-171-9
EC Name:
Magnesium oxide
CAS Number:
1309-48-4
Molecular formula:
MgO
IUPAC Name:
magnesium oxide
Constituent 6
Chemical structure
Reference substance name:
Disodium oxide
EC Number:
215-208-9
EC Name:
Disodium oxide
CAS Number:
1313-59-3
Molecular formula:
Na2O
IUPAC Name:
Disodium oxide
Constituent 7
Chemical structure
Reference substance name:
Dipotassium oxide
EC Number:
235-227-6
EC Name:
Dipotassium oxide
CAS Number:
12136-45-7
Molecular formula:
K2O
IUPAC Name:
Dipotassium oxide
Constituent 8
Chemical structure
Reference substance name:
Rutile (TiO2)
EC Number:
215-282-2
EC Name:
Rutile (TiO2)
CAS Number:
1317-80-2
Molecular formula:
O2Ti
IUPAC Name:
dioxotitanium
Constituent 9
Chemical structure
Reference substance name:
Mercury
EC Number:
231-106-7
EC Name:
Mercury
CAS Number:
7439-97-6
Molecular formula:
Hg
IUPAC Name:
mercury
Constituent 10
Chemical structure
Reference substance name:
Lead
EC Number:
231-100-4
EC Name:
Lead
CAS Number:
7439-92-1
Molecular formula:
Pb
Constituent 11
Chemical structure
Reference substance name:
Copper
EC Number:
231-159-6
EC Name:
Copper
CAS Number:
7440-50-8
Molecular formula:
Cu
IUPAC Name:
copper
Constituent 12
Chemical structure
Reference substance name:
Arsenic
EC Number:
231-148-6
EC Name:
Arsenic
CAS Number:
7440-38-2
Molecular formula:
As
IUPAC Name:
arsine
Constituent 13
Chemical structure
Reference substance name:
Iron
EC Number:
231-096-4
EC Name:
Iron
CAS Number:
7439-89-6
Molecular formula:
Fe
IUPAC Name:
iron
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Reference substance name:
Smectite-group minerals
EC Number:
235-374-6
EC Name:
Smectite-group minerals
CAS Number:
12199-37-0
Molecular formula:
Not available
IUPAC Name:
Hydrated sodium calcium aluminum silicate
Constituent 2
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 3
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
CAS Number:
7778-18-9
Molecular formula:
Ca.H2O4S
IUPAC Name:
calcium sulfate
Constituent 4
Chemical structure
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 (quartz)
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Montmorillonite
EC Number:
215-288-5
EC Name:
Montmorillonite
CAS Number:
1318-93-0
Molecular formula:
Al2H2O6Si
IUPAC Name:
oxo[(oxoalumanyl)oxy]alumane silanedione hydrate
Constituent 2
Reference substance name:
Amorphous material
Molecular formula:
not applicable
IUPAC Name:
Amorphous material
Constituent 3
Chemical structure
Reference substance name:
Cristobalite
EC Number:
238-455-4
EC Name:
Cristobalite
CAS Number:
14464-46-1
Molecular formula:
O2Si
IUPAC Name:
dioxosilane (cristobalite)
Constituent 4
Chemical structure
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 (quartz)
Constituent 5
Chemical structure
Reference substance name:
Feldspar-group minerals
EC Number:
270-666-7
EC Name:
Feldspar-group minerals
CAS Number:
68476-25-5
Molecular formula:
NaAlSi3O8
IUPAC Name:
Feldspar-group minerals
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Constituent 2