PL35331B1 - - Google Patents
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- Publication number
- PL35331B1 PL35331B1 PL35331A PL3533147A PL35331B1 PL 35331 B1 PL35331 B1 PL 35331B1 PL 35331 A PL35331 A PL 35331A PL 3533147 A PL3533147 A PL 3533147A PL 35331 B1 PL35331 B1 PL 35331B1
- Authority
- PL
- Poland
- Prior art keywords
- sodium
- solutions
- bleaching
- potassium
- dithionite
- Prior art date
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- 238000004061 bleaching Methods 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical class OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical class OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical class N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims 2
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical class NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- HEZHYQDYRPUXNJ-UHFFFAOYSA-L potassium dithionite Chemical compound [K+].[K+].[O-]S(=O)S([O-])=O HEZHYQDYRPUXNJ-UHFFFAOYSA-L 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 7
- 235000010265 sodium sulphite Nutrition 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 2
- 240000000491 Corchorus aestuans Species 0.000 description 2
- 235000011777 Corchorus aestuans Nutrition 0.000 description 2
- 235000010862 Corchorus capsularis Nutrition 0.000 description 2
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- LAKXFMUJERKJJK-UHFFFAOYSA-N azane formonitrile Chemical compound N.N#C LAKXFMUJERKJJK-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 229940039748 oxalate Drugs 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- -1 potassium dithionite metals Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 1
- 229940039790 sodium oxalate Drugs 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Description
Jak wiadomo, rozcienczone roztwory wodne podsiarczynów metali potasowcowych, np. pod- siarczynu sodowego, stosowane jako srodki biela¬ ce w przemysle wlókienniczym, traktuje sie, w celu zwiekszenia ich trwalosci, zwiazkami o od¬ czynie zasadowym. Nie wszystkie jednak zasadowo reagujace substancje nadaja sie jed¬ noczesnie do zwiekszania zdolnosci bielacych roztworów podsiarczynów, to tez w praktyce znalazly tu zastosowanie jedynie pirofosforan sodowy i siarczyn sodowy.Stwierdzono, ze bardzo dobre dzialanie bielace oraz znaczna trwalosc roztworów (podsiarczynów mozna osiagnac przez dodawanie soli potasowco¬ wych lub amonowych kwasu cyjanowodorowego, cytrynowego, szczawiowego albo mieszanin tych soli, ewentualnie z domieszka zwiazków o od¬ czynie zasadowym, inp. weglanów potasowców.Otrzymywane w ten sposób roztwory przewyz¬ szaja pod wzgledem wlasnosci bielacych znane dotychczas, utrwalone roztwory podsiarczynów metali potasowcowych.Podsiarczyn mozna w obecnosci szczawianu lub cytrynianu potasowcowego rozpuscic w wo¬ dzie zawierajacej niewielki dodatek zwiazków o odczynie zasadowym albo tez, korzystnie, zmieszac w suchym stanie z szczawianem, cy¬ trynianem lub cyjankiem, dodajac do suchej mieszaniny okolo 5 —10% weglanu sodowego, aby otrzymywac preparat gotowy bezposrednio do wytworzenia kapieli bielacej.Zamiast weglanu sodowego mozna stosowac równowazne ilosci innej soli o odczynie zasado¬ wym, dodajac ja do mieszaniny w stanie suchym lub dopiero po rozpuszczeniu podsiai-czynu.Przyklad I. Mieszanine, zawierajaca 60 — 45% technicznego podsiarczynu sodowego,30 — 45% szczawianu sodowego i 10% weglanu sodowego, rozpuszcza sie w wodzie w ilosci 4 g na litr. Otrzymany roztwór, zastosowany do bielenia juty, posiada lepsze wlasciwosci bielace niz roztwór, zawierajacy mieszanine 70% pod¬ siarczynu i 30% siarczynu sodowego.Przyklad II. Z mieszaniny zawierajacej 70 — 60% podsiarczynu sodowego i 30 — 40% cyjanku sodowego sporzadza sie 0,4 — 0,6%-owy roztwór wodny. Roztwór ten przy bieleniu juty lub bawelny wykazuje o wiele lepsze wlasciwo¬ sci bielace niz roztwór mieszaniny podsiarczynu i siarczynu sodowego oraz nieco lepsze od od¬ powiednich wlasciwosci roztworu podsiarczynu utrwalonego za pomoca 30% pirofosloranu so¬ dowego.Przyklad III. 0,5%-owy roztwór wodny mieszaniny zlozonej z 60% podsiarczynu, 30% cytrynianu sodowego i 10% weglanu sodowego posiada wlasciwosci bielace takie, jak roztwór podany w przykladzie I. PLAs it is known, dilute aqueous solutions of potassium dithionite metals, for example sodium sulfite, used as bleaching agents in the textile industry, are treated, in order to increase their stability, with alkaline compounds. However, not all alkaline reacting substances are simultaneously suitable for increasing the whitening capacity of hyposulfite solutions, and in practice only sodium pyrophosphate and sodium sulfite have been used. It has been found that a very good bleaching action and a high stability of solutions (the sulfites can be achieved by adding salt) Potassium or ammonium hydrocyanic acid, citric acid, oxalic acid or mixtures of these salts, possibly with an admixture of alkaline compounds, e.g. potassium carbonates. The solutions obtained in this way surpass, in terms of bleaching properties, the previously known, fixed solutions of metal bisulfites In the presence of potassium oxalate or citrate, the desulfite can be dissolved in water containing a little addition of alkaline compounds or, preferably, mixed in the dry state with oxalate, citrate or cyanide, adding about 5-10% carbonate to the dry mixture. soda, to obtain a preparation ready directly for the preparation of a bleaching bath. Instead of sodium carbonate, an equal amount of another alkaline salt can be used, either by adding it to the mixture in a dry state or only after dissolving the subsoil. Example I. Mixture containing 60 - 45% technical sodium dithionite, 30 - 45% sodium oxalate and 10% sodium carbonate, are dissolved in water at a rate of 4 g per liter. The obtained solution, used for the bleaching of jute, has better bleaching properties than the solution containing a mixture of 70% of hyposulfite and 30% of sodium sulfite. Example II. A 0.4 - 0.6% aqueous solution is prepared from a mixture of 70 - 60% sodium dithionite and 30 - 40% sodium cyanide. This solution, in the bleaching of jute or cotton, exhibits much better bleaching properties than a solution of a mixture of sodium dithionite and sodium sulphite, and slightly better than the corresponding properties of a dithionite solution fixed with 30% sodium pyrophoslorate. A 0.5% aqueous solution of a mixture consisting of 60% dithionite, 30% sodium citrate and 10% sodium carbonate has bleaching properties similar to the solution given in example I. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL35331B1 true PL35331B1 (en) | 1952-10-31 |
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