CS209389B1 - Method of preparation of diamminosilver tetraborate - Google Patents
Method of preparation of diamminosilver tetraborate Download PDFInfo
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- CS209389B1 CS209389B1 CS168280A CS168280A CS209389B1 CS 209389 B1 CS209389 B1 CS 209389B1 CS 168280 A CS168280 A CS 168280A CS 168280 A CS168280 A CS 168280A CS 209389 B1 CS209389 B1 CS 209389B1
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- CS
- Czechoslovakia
- Prior art keywords
- solution
- borohydride
- diammonium
- application
- enamel
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title description 2
- GDTSJMKGXGJFGQ-UHFFFAOYSA-N 3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B([O-])OB2OB([O-])OB1O2 GDTSJMKGXGJFGQ-UHFFFAOYSA-N 0.000 title 1
- 239000000243 solution Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012153 distilled water Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 208000002925 dental caries Diseases 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 210000002200 mouth mucosa Anatomy 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 230000003239 periodontal effect Effects 0.000 claims description 2
- 230000001603 reducing effect Effects 0.000 claims description 2
- 210000003298 dental enamel Anatomy 0.000 claims 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 2
- 230000000844 anti-bacterial effect Effects 0.000 claims 2
- 244000005706 microflora Species 0.000 claims 2
- 229910052709 silver Inorganic materials 0.000 claims 2
- 239000004332 silver Substances 0.000 claims 2
- CFKMVGJGLGKFKI-UHFFFAOYSA-N 4-chloro-m-cresol Chemical compound CC1=CC(O)=CC=C1Cl CFKMVGJGLGKFKI-UHFFFAOYSA-N 0.000 claims 1
- 206010028116 Mucosal inflammation Diseases 0.000 claims 1
- 241000699670 Mus sp. Species 0.000 claims 1
- 206010072574 Periodontal inflammation Diseases 0.000 claims 1
- 238000004125 X-ray microanalysis Methods 0.000 claims 1
- 230000000274 adsorptive effect Effects 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- VLQATFWRXJHWJB-UHFFFAOYSA-N azane tetrahydrochloride Chemical compound N.N.Cl.Cl.Cl.Cl VLQATFWRXJHWJB-UHFFFAOYSA-N 0.000 claims 1
- 230000037396 body weight Effects 0.000 claims 1
- 238000011109 contamination Methods 0.000 claims 1
- 230000007717 exclusion Effects 0.000 claims 1
- 150000002484 inorganic compounds Chemical class 0.000 claims 1
- 229910010272 inorganic material Inorganic materials 0.000 claims 1
- 210000000214 mouth Anatomy 0.000 claims 1
- 231100000252 nontoxic Toxicity 0.000 claims 1
- 230000003000 nontoxic effect Effects 0.000 claims 1
- 239000000523 sample Substances 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 231100000331 toxic Toxicity 0.000 claims 1
- 230000002588 toxic effect Effects 0.000 claims 1
- 231100000419 toxicity Toxicity 0.000 claims 1
- 230000001988 toxicity Effects 0.000 claims 1
- 239000002244 precipitate Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 229910021607 Silver chloride Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal borates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Description
(54) Sposob přípravy roztoku štvorboritanu diamostriebomého(54) Method for preparing a diammonium borohydride solution
Vynález sa týká spósobu přípravy roztoku štvorboritanu diamostriebomého vzorca:The present invention relates to a process for the preparation of a solution of diammonium borohydride of the formula:
II H \ ZII H \ Z
H-N — Ag — N —H / vH-N-Ag-N-H / v
HOHO
B.B.
OHOH
II
B — Β--“ \B - Β-- "\
B — OHB - OH
2OH ktorý možno použit’ v stomatologii ako prevenčný prostriedok proti zubnému kazu a mikrobiálnemu zápalu slizníc ústnej dutiny a parodontálnych chobotov.2OH which can be used in dentistry as a preventive measure against caries and microbial inflammation of oral mucosa and periodontal trunks.
Boritany sú zlúčeniny, ktorých základnými štruktúmymi jednotkami aniónov sú trojuholníkové skupiriy BO3 alebo tetraedrické skupiny BO4. Tieto skupiny sa spájajú spoločnými atómami kyslíka a vytvárajú tak polyméme reťazce alebo kruhové útvary.Borates are compounds whose basic anionic structural units are the BO 3 triangular groups or the BO 4 tetrahedral groups. These groups are joined by common oxygen atoms to form polymer chains or ring shapes.
Pripravujú sa reakciami roztokov kyseliny trihydroboritej s hydroxidmi alkalických kovov, alebo tavením kyseliny trihydroboritej s kysličníkmi, připadne hydroxidmi kovov (J. Gažo et al. Všeobecná a anorganická chémia, Bratislava 1974; H. Remy, Anorganická chemie, I díl, Praha 1971). Vo vodě sa rozpúšťajú len boritany alkalických kovov.They are prepared by reaction of borohydride solutions with alkali metal hydroxides, or by melting borohydride acid with oxides or metal hydroxides (J. Gažo et al. General and Inorganic Chemistry, Bratislava 1974; H. Remy, Inorganic Chemistry, Part I, Prague 1971). Only alkali metal borates dissolve in water.
Štvorboritan dvojstriebomý je biela kryštalická látka, vo vodě slabo rozpustná, rozpustná v kyselinách (R. C. Weast, Handbook of Chemistťý and Physics, Cleveland 1969). Kyslé roztoky však nie sú vhodné pre použitie v stomatologii, nakolko kontaminujú tkanivá ústnej dutiny.Dichloromethane is a white crystalline substance, slightly soluble in water, soluble in acids (R. C. Weast, Handbook of Chemist & Physics, Cleveland 1969). However, acidic solutions are not suitable for use in dentistry as they contaminate oral tissues.
Vyššie uvedené nedostatky sú odstránené podlá vynálezu, ktorého podstata spočívá v tom, že 1 mol štvorboritanu dvojstriebomého sa rozpustí v 4 moloch 10 až 25 %-nom hydroxide amónnom. Vzniklý roztok štvorboritanu diamostriebomého upravíme zriedením destilovanou vodou s výhodou na 3 až 5 %-ný hmot. %-ný roztok, pretože koncentrovanejšie roztoky sú nestále. Sposob prí209389 pravý a použitie štvorboritanu diamostriebomého v stomatologii nebolo zatial v Uteratúre opísané.The aforementioned drawbacks are eliminated according to the invention, which consists in dissolving 1 mol of dibasic borohydride in 4 moles of 10 to 25% ammonium hydroxide. The resulting diammonium borohydride solution is adjusted to 3 to 5 wt.% By dilution with distilled water. % solution because more concentrated solutions are unstable. The method of genuine and the use of diammonium borohydride in dentistry has not yet been described in Uteratura.
Spósobom podlá vynálezu sa získá roztok štvorboritanu diamostrieborného o koncentráeii 3 až 5 hmot. %-nej, ktorý je vyznačený oxidoredukčnými vlastnosťami, preto nesmie prísť do styku s kovmi a organickými zlúčeninami, ktoré majú redukčně vlastnosti. 3 až 5 hmot. %-ný roztok je stály pri vyiúčení ultrafialovej a viditelnej oblasti 5 světla (o vlnovej dížke od 200 nm do 750 nm) a pri í teplotách od 0 do 20 °C. Výrobný postup je jednoduchý, nevyžaduje náročné výrobně zariadenia a energiů.According to the invention, a solution of diammonium borohydride having a concentration of 3 to 5% by weight is obtained. %, which is characterized by oxidative reduction properties, must therefore not come into contact with metals and organic compounds having reducing properties. 3 to 5 wt. The% solution is stable at the ultraviolet and visible region 5 of light (wavelength from 200 nm to 750 nm) and at temperatures from 0 to 20 ° C. The manufacturing process is simple, it does not require demanding production equipment and energy.
Příklad 1.Example 1.
407,01 g štvorboritanu dvojstriebomého Ag2[B4O5(OH)4] (1 mol) sa rozpustí v 560,736 g 25 %-néhó roztoku NH4OH (4 moly), za stálého miešania pri červenom svetle (o vlnovej dížke nad 750 nm), pretože vzniknutá komplexná zlúčenina štvorboritanu diamostriebomého je pri svetle o vlnovej dížke od 200 nm do 750 nm nestála, pričom dochádza k jej redukcii. Získaný roztok štvorboritanu diamostriebomého zriedime 8975,7 ml destilovanej vody na kóncentráciu 5 hmot. %-nú. Analýza:Dissolve 407,01 g of Ag 2 [B 4 O 5 (OH) 4 ] borohydride (1 mol) in 560,736 g of a 25% NH 4 OH solution (4 moles), with stirring under red light (wavelength) above 750 nm), because the resulting diammonium borohydride complex compound is unstable in light with a wavelength of from 200 nm to 750 nm and is reduced. The resulting diammonium borohydride solution is diluted with 8975.7 ml of distilled water to a concentration of 5 wt. % Sequence. analysis:
ml roztoku štvorboritanu diamostriebomého sa zríedilo 200 ml destilovanej vody a mřeme okyslilo kys. dusičnou. Získaný roztok sa zahrial temer k varu a za stálého miešania sa přidávala 5 %-ná kyselina chlorovodíková tak dlho, až sa dalším přidáváním kyseliny přestane tvoriť zrazenina chloridu striebomého. Roztok só zrazeninou sa, nechal ná trriavom mieste vychladnúť. Zrazenina sa odfiltrovala céz filtračný téglik a premývala destilovanou vodou slabo okyslenou kys. dusičnou, ked už filtrát nereaguje s roztokom dusičňanu striebomého na chloridy. Nakoniec sa zrazenina chloridu striebomého v tégliku ešte premyla čistou destilovanou vodou a vysušila pri 130 °C do konštantnej váhy. Priemer z troch stanovení Ag vo form.e AgCl = 3,5780 g, čo odpovedá teoretické,,mu obsahu Ag v 5 hmot. %-nonji roztoku štvorbo; ritánta diamostriebomého.ml of diammonium borohydride solution was diluted with 200 ml of distilled water and acidified with acid. nitric acid. The resulting solution was heated to near boiling and 5% hydrochloric acid was added with stirring until the addition of the acid no longer formed the silver chloride precipitate. The precipitate solution was allowed to cool in a frost-free place. The precipitate was filtered through a filter crucible and washed with distilled water with slightly acidified acid. nitric acid when the filtrate no longer reacts with the silver nitrate solution to the chloride. Finally, the silver chloride precipitate in the crucible was still washed with pure distilled water and dried at 130 ° C to constant weight. The average of three Ag determinations in the form of AgCl = 3.5780 g, which corresponds to a theoretical Ag content of 5 wt. % of non-quaternary solution; ritánta diamostriebomého.
'........II! ' FyZikálno-chemické vlastnosti:'........ II! 'Physical-chemical properties:
jimot. %-ný roztok štvorboritanu diamostrieborriého je bezfarebná číra kvapalina, je citlivá na světlo; o vlnovej dížke od 200 nm do 750 nm, pričom sa rozkládá za vzniku tmavých kovových povíakov. Ďalej sa redukuje niektórými kovmi,Jimo. The di-diammonium borohydride solution is a colorless, clear, light-sensitive liquid; having a wavelength from 200 nm to 750 nm, decomposing to form dark metal binders. It is further reduced by nectal metals,
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS168280A CS209389B1 (en) | 1980-03-12 | 1980-03-12 | Method of preparation of diamminosilver tetraborate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS168280A CS209389B1 (en) | 1980-03-12 | 1980-03-12 | Method of preparation of diamminosilver tetraborate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS209389B1 true CS209389B1 (en) | 1981-11-30 |
Family
ID=5351797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS168280A CS209389B1 (en) | 1980-03-12 | 1980-03-12 | Method of preparation of diamminosilver tetraborate |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS209389B1 (en) |
-
1980
- 1980-03-12 CS CS168280A patent/CS209389B1/en unknown
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