AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
2. PHYSICO-CHEMICAL DATA ID: 7783-20-2
DATE: 18.04.2006
25-MAR-2003 (13)
Type:
Value:
density
= 1.766 g/cm³
Test substance: as prescribed by 1.1 - 1.4
Reliability: (4) not assignable
manufacturer/producer data without proof
25-MAR-2003 (15)
Type:
Value:
bulk density
= 1000 kg/m3
Test substance: as prescribed by 1.1 - 1.4
Reliability: (4) not assignable
manufacturer/producer data without proof
25-MAR-2003 (15)
2.3.1 Granulometry
Method:
GLP:
Test substance:
Result:
Reliability:
other: no data
no data
other TS: ammonium sulfate, industrial grade
typical particle size distribution for Industrial grade
ammonium sulfate:
- > 2 um, max 4 %
- 1-2 um, min. 85%
- 0.5-1 um, max. 11%.
(4) not assignable
manufacturer/producer data without proof
Flag:
Critical study for SIDS endpoint
17-APR-2003 (19)
2.4 Vapour Pressure
Value:
Method:
GLP:
Test substance:
Remark:
Reliability:
60
= .000000004053 hPa
other (measured): ring oven technique
no
other TS: 99.0% min (Univar) (NH4)2SO4 supplied by Ajax
chemicals, and 99.5% min (Analar) (NH4)SO4 supplied by British
Drug Houses.
equilibrium partial pressure of ammonia over solid (NH4)2SO4
The equilibrium partial pressure of ammonia over solid
(NH4)2SO4 has been determined as a function of temperature
and acid impurity content. At 25 °C a 99.99% pure (NH4)2SO4
sample has a NH3 partial pressure of 4*E-12 atmospheres,
whereas a a 99% pure (NH4)2SO4 sample has a NH3 partial
pressure of only 4*E-14 atm.
(1) valid without restriction
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