Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Manufacture, use & exposure

Manufacture

Documentsopen allclose all

Manufacture

Registration/ Notification status for the use:
use registered according to REACH Article 17/18
Reference
Name:
1,1,1,3,3,3-Hexamethyldisilazane
Type of composition:
legal entity composition of the substance
State / form:
liquid
>= 98 - < 100 % (w/w)
Reference substance:
1,1,1,3,3,3-Hexamethyldisilazane
Reference substance:
1,1,1,3,3,3-Hexamethyldisilazane
This impurity is considered relevant for the classification and labelling of the substance
Contributing activity / technique for the environment
Name of activity / technique:
Distillation of 1,1,1,3,3,3-Hexamethyldisilazane under SCC
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Distillation of 1,1,1,3,3,3-Hexamethyldisilazane under SCC
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Distillation of 1,1,1,3,3,3-Hexamethyldisilazane under SCC
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Distillation of 1,1,1,3,3,3-Hexamethyldisilazane under SCC
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Name of activity / technique:
Distillation of 1,1,1,3,3,3-Hexamethyldisilazane under SCC
Process category (PROC):
PROC 15: Use as laboratory reagent

Manufacture

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workers
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)

Manufacture

Registration/ Notification status for the use:
use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
Contributing activity / technique for the environment
Name of activity / technique:
Manufacture of the substance >100 tonnes/year
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Name of activity / technique:
Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment condition
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Chemical production where opportunity for exposure arises
Process category (PROC):
PROC 4: Chemical production where opportunity for exposure arises
Name of activity / technique:
Mixing or blending in batch processes
Process category (PROC):
PROC 5: Mixing or blending in batch processes
Name of activity / technique:
Transfer of substance or mixture (charging/discharging) at non dedicated-facilities
Process category (PROC):
PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities
Name of activity / technique:
Transfer of substance or mixture (charging/discharging) at dedicated facilities
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Name of activity / technique:
Equipment cleaning and maintenance
Process category (PROC):
PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities
PROC28: Manual maintenance (cleaning and repair) of machinery
Related assessment:
use assessed in a joint CSR

Manufacture

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Related assessment:
use assessed in a joint CSR

Manufacture

Registration/ Notification status for the use:
use registered according to REACH Article 17/18
Reference
Name:
1,1,1,3,3,3-Hexamethyldisilazane
Type of composition:
legal entity composition of the substance
State / form:
liquid
>= 94 - <= 100 % (w/w)
Reference substance:
1,1,1,3,3,3-Hexamethyldisilazane
Reference substance:
1,1,1,3,3,3-Hexamethyldisilazane
This impurity is considered relevant for the classification and labelling of the substance
Contributing activity / technique for the environment
Name of activity / technique:
Import of 1,1,1,3,3,3-Hexamethyldisilazane as TII
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Import of 1,1,1,3,3,3-Hexamethyldisilazane as TII
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Import of 1,1,1,3,3,3-Hexamethyldisilazane as TII
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Import of 1,1,1,3,3,3-Hexamethyldisilazane as TII
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Name of activity / technique:
Import of 1,1,1,3,3,3-Hexamethyldisilazane as TII
Process category (PROC):
PROC 15: Use as laboratory reagent

Manufacture

Registration/ Notification status for the use:
use registered according to REACH Article 17/18
Reference
Name:
1,1,1,3,3,3-Hexamethyldisilazane
Type of composition:
legal entity composition of the substance
State / form:
liquid
Reference substance:
1,1,1,3,3,3-Hexamethyldisilazane
Contributing activity / technique for the environment
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane in Xylene_TII
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane in Xylene_TII
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane in Xylene_TII
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane in Xylene_TII
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane in Xylene_TII
Process category (PROC):
PROC 15: Use as laboratory reagent

Manufacture

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workers
Process category (PROC):
PROC 15: Use as laboratory reagent
Related assessment:
use assessed in a joint CSR

Manufacture

Registration/ Notification status for the use:
use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
Reference
Name:
1,1,1,3,3,3-Hexamethyldisilazane
Type of composition:
legal entity composition of the substance
State / form:
liquid
Reference substance:
1,1,1,3,3,3-Hexamethyldisilazane
Contributing activity / technique for the environment
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Environmental release category (ERC):
ERC1: Manufacture of the substance
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 4: Chemical production where opportunity for exposure arises
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 5: Mixing or blending in batch processes
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Name of activity / technique:
Manufacture of 1,1,1,3,3,3-Hexamethyldisilazane
Process category (PROC):
PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities
PROC28: Manual maintenance (cleaning and repair) of machinery
Related assessment:
use assessed in a joint CSR