POTASSIUM CHLORIDE CAS N°: 7447-40-7

OECD SIDS POTASSIUM CHLORIDE
FULL SIDS SUMMARY
CAS NO: 7447-40-7 SPECIES PROTOCOL RESULTS
PHYSICAL-CHEMICAL
2.1 Melting Point 772 °C
2.2 Boiling Point 1407 °C
2.3 Density 1984 kg/m 3
2.4 Vapour Pressure 5.73 hPa at 906 °C
2.5 Partition Coefficient
(Log Pow)
Calculated -0.46
2.6 A. Water Solubility 342000 mg/l at 20°C
ENVIRONMENTAL FATE AND
PATHWAY
3.1.1 Photodegradation N.A.
3.1.2 Stability in Water N.A.
3.2 Monitoring Data In surface water 2.3 mg K + /l
In surface water 8.3 mg Cl - /l
In seawater 380 mg K + /l
In seawater 19000 mg Cl - /l
In topsoil 0.2-3.3 % K +
In KCl principal minerals 25-99 % KCl
In humans (ad.) 2 g K + / kg bw
In humans (ad.) 1 g Cl - /kg bw
3.3 Transport and Distribution Calculated
(Fugacity Level 1 type)
3.5 Biodegradation N.A.
ECOTOXICOLOGY
In Air 0.03 %
In Water 99.7 %
In Sediment 0.01 %
In Soil 0.03 %
4.1 Acute/Prolonged Toxicity to
Fish
Pimephales
promelas
US-EPA, 1990
LC 50 (24 hr) = 950 mg/l
LC 50 (48 hr) = 910 mg/l
LC 50 (96 hr) = 880 mg/l
Ictalurus
punctatus
Other
LC 50
(48 hr) = 720 mg/l
4.2 Acute Toxicity to Aquatic
Invertebrates
Daphnia magna
US-EPA, 1990
EC 50
(24 hr) = 740 mg/l
EC 50
(48 hr) = 660 mg/l
Ceriodaphnia
dubia
Daphnia magna
US-EPA, 1990
Other
EC 50 (48 hr) = 630 mg/l
EC 50
(48h)=177 mg/l
4.3 Toxicity to Aquatic Plants
e.g. Algae
4.5.2 Chronic toxicity to aquatic
invertebrates
Nitzschia linearis Other EC 50
(120 hr) = 1337 mg/l
Daphnia magna Other EC 50
(21d) = 130 mg/l
LOEC (21d) = 101 mg/l (16 %
reproduction impairment)
TO XICOLOGY
5.1.1 Acute Oral Toxicity Rat Other LD 50 = 3020 mg/Kg
5.4 Repeated Dose Toxicity Rat Other No adverse effects observed up to 1820
mg/Kg bw/day
5.5 Genetic Toxicity In Vitro
A. Bacterial Test
(Gene mutation)
S. typhimurium
E. coli
Other (NTP modified
standard assay)
Other (SOS
Chromotest)
- (With metabolic activation)
- (Without metabolic activation)
- (Without metabolic activation)
UNEP PUBLICATIONS 5