Platinum compounds

МЕА Hexahydroxyplatinate (IV) Solution

Physical–chemical parameters of monoethanolamine hexahydroxoplatinate shall meet the requirements specified in Table 1.

Table 1.

ParameterValue
Type IType II
1 Mass fraction of platinum, %10,00 – 20,0010,00 – 20,00
2 Mass fraction of impurities in relation to platinum content, not more than, %:
arsenic0.0010.005
iron0.020.02
gold0.0050.005
lead0.0040.005
silicon0.040.04
copper0.00150.005
ruthenium0.0050.005
calcium0.080.08
silver0.0050.005
sodium0.30.3
potassium0.0350.3
iridium**
rhodium**
palladium**
zinc****
antimony****
bismuth****
nickel****
manganese****
magnesium****
tin****
chromium****
molybdenum****
aluminium****
3 Mass fraction of chloride ion in relation to platinum content, not more than, %***0.10.1
* The total mass fraction of iridium, rhodium, palladium is not more than 0.0300% (in relation to platinum content).
** The total mass fraction of zinc, antimony, bismuth, nickel, manganese, magnesium, tin, chromium, molybdenum, aluminium is not more than 0.0250% (in relation to platinum content).
*** Determination of the mass fraction of the chloride ion is carried out by calculation, in accordance with the procedure developed at the enterprise.
Note - additional requirements for the quality of monoethanolamine hexahydroxoplatinate can be established upon agreement with the manufacturer.

The degree of extraction of hydrogen hexahydroxoplatinate (IV) (hereinafter referred to as hydrogen hexahydroxoplatinate) into the precipitate from monoethanolamine hexahydroxoplatinate shall not be less than 90.0%. Determination of this indicator is carried out in accordance with the procedure developed at the enterprise.

Monoethanolamine hexahydroxoplatinate shall not contain insoluble substances. In a solution of monoethanolamine hexahydroxoplatinate the presence of a precipitate in the form of soluble platinum salts is allowed.

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