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Reagents, nitric acid (HNO3)

Reagents, nitric acid (HNO3)

REAGENT, NITRIC ACID (HNO3)

TSh 6.3-74:2002 (CN of FEA code 280 800 0000)

Nitric acid, reagent is used for manufacturing of chemical agents, in radio electronics and medicine. The density of nitric acid with mass fraction 56%, under 20°С-1,35 g/sm3 and with mass fraction 65% under 20 °С-1,4 g/sm3.

Specifications

Grades

«Chemically pure »

«Analytically pure »

«Pure»

Mass fraction of nitric acid (HNO3), %, no less than:

- concentrated

- diluted

65

56

65

56

65

56

Mass fraction of residue after ignition in the form of sulphates, %, no more than

0,001

0,003

0,005

Mass fraction of sulphates (SO4), %, no more than

0,0001

0,0005

0,0020

Mass fraction of phosphates (РО4), %, no more than

0,00002

0,00005

0,00200

Mass fraction of chlorides (Cl), %, no more than

0,00003

0,00010

0,00050

Mass fraction of arsenic (As), %, no more than

0,000001

0,000001

0,000003

Mass fraction of heavy metals (Pb), %, no more than

0,00002

0,00002

0,00002

Mass fraction of iron (Fe), %, no more

0,00002

0,00010

0,00030


 
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