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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Adsorption / desorption

KOCWIN model (v2.00) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the soil adsorption coefficient i.e Koc value of test chemical bis[[4 -[[4 -(diethylamino)phenyl][4 -(ethylamino)-1 -naphthyl]methylene]cyclohexa-2,5 -dien-1 -ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) (CAS No. 82338 -76 -9). The soil adsorption coefficient i.e Koc value of bis[[4 -[[4 -(diethylamino)phenyl][4 -(ethylamino)-1 -naphthyl]methylene]cyclohexa-2,5 -dien-1 -ylidene]diethylammonium] dicopper(1 +) hexa(cyano-C)ferrate(4 -) was estimated to be 433000000 L/kg (log Koc= 8.636)  by means of MCI method (at 25 deg C). This Koc value indicates that the substance bis[[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]cyclohexa-2,5-dien-1-ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

Additional information

Adsorption / desorption

Predicted data for the target compound bis[[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]cyclohexa-2,5-dien-1-ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) (CAS No. 82338-76-9) and supporting study for its read across substance were reviewed for the adsorption end point which are summarized as below:

 

In a key study,theKOCWIN Program(v2.00) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the soil adsorption coefficient i.e Koc value of test chemical bis[[4 -[[4 -(diethylamino)phenyl][4 -(ethylamino)-1 -naphthyl]methylene]cyclohexa-2,5 -dien-1 -ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) (CAS No. 82338 -76 -9).

The soil adsorption coefficient i.e Koc value of bis[[4 -[[4 -(diethylamino)phenyl][4 -(ethylamino)-1 -naphthyl]methylene]cyclohexa-2,5 -dien-1 -ylidene]diethylammonium] dicopper(1 +) hexa(cyano-C)ferrate(4 -) was estimated to be 433000000 L/kg (log Koc= 8.636)  by means of MCI method (at 25 deg C). This Koc value indicates that the substance bis[[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]cyclohexa-2,5-dien-1-ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

 

In a supporting study from authoritative database (HSDB, 2017) for the read across chemical (4 -(4,4'-Bis(dimethylamino)benzhydrylidene)cyclohexa-2,5 -dien-1 -ylidene)dimethylammonium, chloride (CAS no. 548 -62 -9),adsorption experiment was conducted for estimating the adsorption coefficient (Koc) value of read across chemical (4 -(4,4'-Bis(dimethylamino)benzhydrylidene)cyclohexa-2,5 -dien-1 -ylidene)dimethylammonium, chloride. The adsorption coefficient (Koc) value was calculated using a structure estimation method based on molecular connectivity indices. The adsorption coefficient (Koc) value of substance (4 -(4,4'-Bis(dimethylamino)benzhydryli dene)cyclohexa-2,5 -dien-1 -ylidene)dimethylammonium, chloride was estimated to be 610000 (Log Koc = 5.785).

 

On the basis of above overall results for target chemical bis[[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]cyclohexa-2,5-dien-1-ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) (fromCompTox Chemistry Dashboard,2017) and for its read across substance (from authoritative database HSDB, 2017), it can be concluded that the Koc value of test substance bis[[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]cyclohexa-2,5-dien-1-ylidene]diethylammonium] dicopper(1+) hexa(cyano-C)ferrate(4-) was estimated to be

433000000 L/kg (log Koc= 8.636), indicating that the test chemical bis[[4 -[[4 -(diethylamino)phenyl][4 -(ethylamino)-1 -naphthyl]methylene]cyclohexa-2,5 -dien-1 -ylidene]diethylammonium] dicopper(1 +) hexa(cyano-C)ferrate(4 -)has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.