FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing material based on a product of oxidising cellulose. 2,3-dialdehyde cellulose is treated with an equimolar amount of thiosemicarbazide at temperature 25°C for 24 hours. The obtained product is 2,3-dithiosemicarbazone cellulose. The cellulose-based material is used in making reactive indicator paper, as well as in sorption concentration and extraction of heavy metals from solutions for analytical purposes.
EFFECT: method is simple, safe and enables to obtain a cheap product.
3 tbl, 3 ex, 1 dwg
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SU1606903A1 |
