Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 235-227-6 | CAS number: 12136-45-7
Endpoint summary
Administrative data
Description of key information
Additional information
Terrestrial Effects
According to “ANNEX IX- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 100 TONNES OR MORE , study for effects on terrestrial organisms and plants need not be conducted if:
- These studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely.
Potassium is one of the three major nutrients for plants. The potassium requirement for optimal plant growth is in the range 2-5 % of the plant dry weight of vegetative parts.
Potassium in plants is important for the osmotic and ionic regulation, plays a key role in the water homeostasis, and is closely connected with processes involved in the protein synthesis. In higher plants, potassium affects photosynthesis at various levels.
The ECOSAR QSAR model predicts that 30-day, NOEC cited as a ChV value would to be 178.832 mg/L (ppm) for terrestrial plants.
The ECOSAR QSAR model predicts that 96-hr EC50 value would to be 1368.296 mg/L (ppm) for terrestrial plants.
180d EC50 = 850 and EC92 = 3000 mg/l for the enchytraeid population in fresh pine substrate.
The ECOSAR QSAR model predicts that 14-day, LC50 (14-day, earthworm) would to be 887.517 mg/L (ppm).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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