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EC number: 220-977-9
CAS number: 2956-12-9
The EC50 for inhibition of oxygen consumption in activated sludge by CS2
is 13 mg/L.
Carbon disulphide (CAS number 75–15–0) is both reagents used in the
manufacture of S-allyl O-pentyl dithiocarbonate. Therefore, Carbon
disulphide (CAS number 75–15–0) need to be considered in the assessment
of S-allyl O-pentyl dithiocarbonate.
On a molecular weight scaled basis, the EC50 would be 34.89 mg/l. (13 x
204.35) /76.13 =34.89 mg/l
On a molecular weight scaled basis, the EC10 would be 12.35 mg/l. (4.6x
204.35) /76.13 =12.35 mg/l
This study reports a 15-min EC50 of 341 mg/L (carbon disulphide (CS2)
for the marine bacterium Photobacterium phosphoreum based on the results
of a Microtox test.
The 15-min EC50 of CS2 for Photobacterium posphoreum luminescence was
On a molecular weight scaled basis, the EC50 would be 915.32 mg/l. (341
x 204.35) /76.13 =915.32 mg/l
influence of 28 nitrification inhibitors on denitrification of nitrate
in soil was studied by determining the effects of different amounts of
each inhibitor on the amounts of nitrate lost and the amounts of
nitrite, N2O and N2 produced when soil samples were incubated
anaerobically after treatment with nitrate or with nitrate and mannitol.
inhibitors used included nitrapyrin (N-Serve), etridiazole (Dwell),
potassium azide, 2-amino-4-chloro-6-methylpyrimidine (AM), sulfathiazole
(CL-1580), potassium ethyl xanthate,
guanylthiourea (ASU), 4-nitrobenzotrichloride, 4-mesylbenzotrichloride,
sodium thiocarbonate (STC), phenylmercuric acetate (PMA), and
dicyandiamide (DCD).Only one of the nitrification inhibitors studied
(potassium azide) retarded denitrification when applied at the rate of
10 g g–1 soil, and only two (potassium azide and
2,4-diamino-6-trichloromethyl-s-triazine) inhibited denitrification when
applied at the rate of 50 g g–1 soil. The other inhibitors either had no
appreciable effect on denitrification, or enhanced denitrification, when
applied at the rate of 10 or 50 g g–1 soil, enhancement being most
marked with 3-mercapto-1,2,4-triazole. Seven of the inhibitors
(potassium azide, sulfathiazole,potassium ethyl xanthate,sodium
4-nitrobenzotrichloride, sodium thiocarbonate, and phenylmercuric
acetate) retarded denitrification when applied at the rate of 50 g g–1
soil to soil that had been amended with mannitol to promote microbial
activity.Reports that nitrapyrin (N-Serve) and etridiazole (Dwell)
inhibit denitrification when applied at rates as low as 0.5 g g–1 soil
could not be confirmed. No inhibition of denitrification was observed
when these compounds were applied at the rate of 10 g g–1 soil, and
enhancement of denitrification was observed when they were applied at
the rate of 50 or 100 g g–1 soil.
Potassium ethyl xanthate retarded denitrification when applied at the
rate of 50 g g–1 soil to soil that had been amended with mannitol to
promote microbial activity. No inhibition of denitrification was
observed when this compound was applied at the rate of 10 g g–1 soil,
and enhancement of denitrification was observed when it was applied at
the rate of 50 or 100 g g–1 soil.
The S-allyl O-pentyl
dithiocarbonate (CAS No.2956-12-9),
the subject of this dossier) is expected to exhibit very similar
toxicity to Potassium ethyl xanthate (CAS
No. 140-89-6), which is also xanthate compound. Comparable metabolism
Potassium ethyl xanthate is a nitrification inhibitor that has been
observed to inhibit soil denitrification at EC50= 50 mg/l.
The S-allyl O-pentyl dithiocarbonate (CAS No. 2956-12-9), the subject of
this dossier) is expected to exhibit very similar toxicity to Potassium
ethyl xanthate (CAS No. 140-89-6), which is also xanthate compound.
Comparable metabolism would occur.
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