FIELD: chemistry.
SUBSTANCE: composition contains sodium or potassium or ammonium pyrosulphate or sodium or potassium or ammonium persulphate, 0.09-10% w/w, sodium or potassium or ammonium fluoride or hydrofluoric acid - 0.01-1.0 %w/w, polyphenolic compounds of wood or conifer rind - 0.003-6.0 %w/w, urotropine - 0.01-8.0 %w/w, hydrochloric acid - 2.0-24.0 % w/w, non-ionic detergent -0.0015-0.0% w/w, and water - the rest.
EFFECT: proposed composition improves dissolution of slightly soluble scale and deposits containing silicates.
1 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR REMOVING DEPOSITS AND SCUM FROM INNER SURFACES OF HEAT-EXCHANGE EQUIPMENT | 2007 |
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RU2331591C1 |
| DESCALING COMPOSITION | 2003 |
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| SCALE REMOVAL COMPOSITION | 2004 |
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| SCALE REMOVAL COMPOSITION | 2014 |
|
RU2554583C1 |
| DEVICE FOR CLEANING OF HEAT EXCHANGE EQUIPMENT FROM DEPOSITS AND SCALE (VERSIONS) | 2009 |
|
RU2404397C1 |
| COMPOSITION FOR DESCALING HEAT-EXCHANGE SURFACES | 2010 |
|
RU2443637C2 |
