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LC5397 Sodium dihydrogen phosphate dihydrate
for analysis EMSURE Reag. Ph Eur

 

Order number Packaging Quantity Price €
AC32397 Plastic bottle 250 g Inquire
AC32397 Plastic bottle 1 kg Inquire
AC32397 Plastic bottle 2.5 kg Inquire

 

Product information
Grade Reag. Ph Eur
Synonyms mono-Sodium orthophosphate, Sodium biphosphate, Sodium phosphate monobasic
Hill Formula H2NaO4P * 2 H2O
Chemical formula NaH2PO4 * 2 H2O
HS Code 2835 22 00
EC number 231-449-2
Molar mass 156.02 g/mol
CAS number 13472-35-0

 

Chemical and physical data
Solubility 850 g/l (20 °C)
Melting point 60 °C
Molar mass 156.02 g/mol
Density 1.915 g/cm3 (20 °C)
Bulk density 1000 kg/m3
pH value 4.5 (12 g/l, H2O, 25 °C)

 

Safety information
RTECS WA1900500
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

 

Transport information
Declaration (transport by sea) IMDG-Code No Dangerous Good
Declaration (transport by air) IATA-DGR No Dangerous Good

 

Toxicological data
LD 50 oral LD50 rat 8290 mg/kg
LD 50 dermal LD50 rabbit > 7940 mg/kg

 

Specifications
Identity passes test
Appearance of solution passes test
Assay (alkalimetric, calculated on dried substance) 99.0 – 100.5 %
In water insoluble matter (calculated on dried substance) ≤ 0.15 %
pH-value
– 1 %, water
4.1 – 5.0
– 5 %; water 4.2 – 4.5
Chloride (Cl) ≤ 0.0005 %
Fluoride (F) ≤ 0.001 %
Total nitrogen (as N) ≤ 0.001 %
Hydrogenphosphate (HPO4) ≤ 0.5 %
Sulphate (SO4) ≤ 0.01 %
Heavy metals (as Pb) ≤ 0.0005 %
Al, Ca and other elements detectable with ammonia passes test
As (Arsenic) ≤ 0.00005 %
Ca (Calcium) ≤ 0.005 %
Cd (Cadmium) ≤ 0.0001 %
Co (Cobalt) ≤ 0.005 %
Cu (Copper) ≤ 0.005 %
Fe (Iron) ≤ 0.001 %
Hg (Mercury) ≤ 0.0001 %
K (Potassium) ≤ 0.005 %
Mg (Magnesium) ≤ 0.005 %
Ni (Nickel) ≤ 0.005 %
Pb (Lead) ≤ 0.0004 %
Zn (Zinc) ≤ 0.025 %
Substances reducing potassium permanganate (as O) passes test
Loss on drying (130 °C) 21.5 – 24.0 %