Document 5LJzvQd41rKdMGGjQvRvnnE50
AR226-3065
HASKXLL LABORATORY ?OR TOXICOLOGY AND XHDOSTRIAXi MZDICXNK
DUPont HLR 905-96
STATIC. ACOTE 48-HOUR SCRKBHIMS TBST or H-21954
TO Daphnia aagn>
PURPOSB:
This is a rangefinding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.
GENERAL IOT'ORMA.TION
HASKXLL HONBBR: 21954
TBST COOB:dfd&
SPONSOR: DuPont NOTBBOOK XD:
SOBKITTBR'S
NOTEBOOK NO.: MATERIAL TBSTSa
SYHOHySIS
Specialty
Chemicals
COMPOSITION:
casaKsszsssFES: OTHER CODES:
CAS REGISTRY: PURITY;
TBST COHDITIONS
nominal concentrations tstd: 0, 0.5, 1.0, 50, 500, and 5000 mg/L.
Page 1 of 2
Sonroany Sanffized. Does ncreconfain TSCA CBI
DuPont HLR 905-96
HASKBLL LABORATORY FOR TOXICOLOOT AMD INDUSTRIAL MKDZCINX
STATIC, ACUTB 48-HOUR SCRXKNINO TB3T OF H-21954 Paphnia naona. CONTXNUBD
TEST CONDITIONS (Continuad)
Diaaolvad Oxvgan and pH:
Nominal
Concaatrafcioa Kaplicata
(9/L)
At Test Initiation
pB
Diaablvad
Oxygan (ag/L)
Raplicata
Raplicata
A
B
A
B
At Tat
pB
Raplicata
A
B
CoBplation
Diaaolvad
Qxygaa (g/L)
Ranlicata
A
B
0
0.5 1.0
50 500 5000
8.8
8. 8
8.8
8. 8
8.8
8. 8
8.8
8. 8
8.7
8. 7
8.4
8. 4
8.6 8.6 8.4 8.4
8.8
8.6 8.6 8.4 8.4
8.8
8.6 8.6 8.4 8.4
8.8
8.6 8.6 8.4 8.4
8.8
8.6 8.5 8.3 8.3
S.8
8.5 8.6 8.3s 8.3^ 9.03
a Reading taken at approximately 24 hours after exposure, due to total
immobility.
8.8 8.6 8.8 8.8 8.8 9.0a
RKSULTS
Based on visual observations, all test solutions were clear and colorless, except for the 5000 mg/L test solution which was cloudy, white in color.
Ximnobilities were 0, 0, 0. 0, 60, and 100%, respectively. Ten percent of the daphnia in both the 50 and 500 rog/L test solutions were lethargic and at the bottom of the test vessel. The 48-hour BC50, based on nominal concentrations and immobility, was between 50 and 500 mg/L. All water quality parameters were within acceptable limits.
CONCLUSIONS
H-21954 exhibited slight toxicity in a 48-hour, unaerated, static acute test
using Daphnia macma.
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WORK BY,
^^ ^.W^ Jamds w. Wetzel(j
Toxicology Associate
/0//y/y^
Mo/Day/Year
APPROVED BY:
^^^^^^ Michelle R. firown. B.A.
Study Director
^'/'"//f^
Mo/Day/Year
DISTRIBUTION
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