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Sodium dihydrogen phosphate dihydrate
NaH
2
PO
4
*2H
2
O
CAS-No: 13472-35-0
EC-No: 231-449-2
EC index No: -
M= 156.02 g/mol
Vapor Pressure: -
Specific density: 1.915 g/cm
3
(20°C)
Flash point: not applicable
Soluble in H
2
O 850 g/l (20°C)
pH value 4.1 - 4.5 ( %5)
Melting point: 60°C
Bulk density: 1000 kg/m
3
Boiling point: not applicable
Ignition temperature: not combustible
Explosive limit: not applicable
Viscosity kinematic: -
-
H-STATEMENT/EUH: -
Test Type: LD50 oral rat ; LD50 dermal
rabbit
Results: 8290 mg/kg ; 7940 mg/kg
HS-CODE: 2835 22 00
LGK: 10 - 13 Disposal: 14
WGK: 1 UN: -
969.053
Sodium dihydrogen phosphate dihydrate
-
Ph Eur, BP, USP, JPE, E 339
Specification
Assay (calculated on
dried substance)
99.0 - 102.0 %
Identity
passes test
Appearance of solution
passes test
pH-value (5 %; water)
4.2 - 4.5
In water insoluble matter
(calculated on dried substance)
0.01 %
Chloride (Cl)
0.0005 %
Fluoride (F)
0.001 %
Hydrogenphosphate (HPO
4
)
0.5 %
Sulphate (SO
4
)
0.003 %
Heavy metals (as Pb)
0.0005 %
Al, Ca and other elements
detectable with ammonia
passes test
As (Arsenic)
0.0001 %
Ca (Calcium)
0.005 %
Cd (Cadmium)
0.0001 %
Fe (Iron)
0.0005 %
Hg (Mercury)
0.0001 %
K (Potassium)
0.005 %
Pb (Lead)
0.0001 %
Reducing substances
passes test
Loss on drying
22.0 - 24.0 %
UV absorbances (280 nm, 1 mol/l)
0.05
Total Nitrogen (N)
0.001 %
catalogue
number
969.053.0500
969.053.1000
packing
specs
plastic bottle
plastic bottle
pack
in box
6 pieces
6 pieces
weight
in pack
500 g
1 kg
969.073
Sodium disulfite
-
Ph Eur, BP, JP, NF, E 223
Specification
Assay (Na
2
S
2
O
5
)
98.0 - 99.5 %
Assay (SO
2
)
66.0 - 67.0 %
Identity
passes test
Appearance of solution
passes test
pH (10 % sol)
4.0 - 4.5
Chloride (Cl)
0.005 %
Heavy metals (as Pb)
0.001 %
As (Arsenic)
0.00005 %
Fe (Iron)
0.0005 %
Hg (Mercury)
0.00001 %
Pb (Lead)
0.00005 %
Se (Selenium)
0.00005 %
969.076
Sodium disulfite
-
For analysis ACS, Reag. Ph Eur.
Specification
Assay (Na
2
S
2
O
5
)
98.0 - 99.5 %
Identity
passes test
Appearance of solution
passes test
pH (10 % sol)
4.0 - 4.5
Sodium Sulfite (Na
2
SO
3
)
1.5 %
Sodium Sulfate (Na
2
SO
4
)
2.0 %
Chloride (Cl)
0.005 %
Heavy metals (as Pb)
0.001 %
As (Arsenic)
0.00005 %
Cd (Cadmium)
0.000005 %
Fe (Iron)
0.0005 %
Insoluble matter
0.0 %
Sodium thiosulfate(Na
2
S
2
O
5
)
0.02 %
catalogue
number
969.076.0100
969.076.0500
969.076.1000
packing
specs
plastic bottle
plastic bottle
plastic bottle
pack
in box
6 pieces
6 pieces
6 pieces
weight
in pack
100 g
500 g
1 kg
Sodium disulfite
Na
2
O
5
S
2
CAS-No: 7681-57-4
EC-No: 231-673-0
EC index No: 016-063-00-2
M= 190.11 g/mol
Vapor Pressure: -
Specific density: 1.40-1.48 g/cm
3
Flash point: not applicable
Soluble in H
2
O 540 g/l
pH value 3.5 - 5 (50 g/l, H
2
O, 20°C)
Melting point: 150°C (decomposition)
Bulk density: 1000 - 1200 kg/m
3
Boiling point: not applicable
Ignition temperature: not applicable
Explosive limit: not applicable
Viscosity kinematic: -
harmful, irritant
H-STATEMENT/EUH: H302;318 / P280;
305 + 351 + 338;313
Test Type: LD50 oral rat; LD50 dermal rat
Results: 1540 mg/kg ; >2000 mg/kg
HS-CODE: 2832 10 00
LGK: 10 - 13 Disposal: 6
WGK: 1 UN: -
catalogue
number
969.073.0500
969.073.1000
969.073.5000
packing
specs
plastic bottle
plastic bottle
plastic bottle
pack
in box
6 pieces
6 pieces
1 piece
weight
in pack
500 g
1 kg
5 kg