SU1671628A1 - Method of increasing chemical resistance of glass vessels - Google Patents
Method of increasing chemical resistance of glass vessels Download PDFInfo
- Publication number
- SU1671628A1 SU1671628A1 SU884628881A SU4628881A SU1671628A1 SU 1671628 A1 SU1671628 A1 SU 1671628A1 SU 884628881 A SU884628881 A SU 884628881A SU 4628881 A SU4628881 A SU 4628881A SU 1671628 A1 SU1671628 A1 SU 1671628A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- glassware
- chemical resistance
- ammonium fluoride
- glass vessels
- increasing chemical
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000000126 substance Substances 0.000 title claims description 4
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003779 heat-resistant material Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Surface Treatment Of Glass (AREA)
Abstract
Изобретение относитс к способам термохимической обработки стеклоизделий медицинского назначени , например дл хранени медпрепаратов. Цель - повышение устойчивости к растворам с PH 6,5 - 8,5 при сохранении прозрачности стеклоизделий. Обработку внутренней поверхности издели ведут с помощью сфероидального тела из пористого жаропрочного материала, пропитанного 0,5 - 1,5 М раствором фторида аммони , при нагревании до температуры, на 10 - 20°С ниже температуры разм гчени стекла. 1 табл.The invention relates to methods for the thermochemical treatment of medical glassware, for example, for the storage of medical preparations. The goal is to increase the resistance to solutions with a pH of 6.5 - 8.5 while maintaining the transparency of glassware. The inner surface of the product is treated using a spheroidal body of porous heat-resistant material impregnated with 0.5-1.5 M ammonium fluoride solution, when heated to a temperature, 10-20 ° C below the softening temperature of glass. 1 tab.
Description
Изобретение относитс к способам термохимической обработки стеклоизделий медицинского назначени , например дл хранени медпрепаратов.The invention relates to methods for the thermochemical treatment of medical glassware, for example, for the storage of medical preparations.
Цель изобретени - повышение химической устойчивости к растворам с рН, равным 6,5-8,5, с сохранением прозрачности стеклоизделий.The purpose of the invention is to increase the chemical resistance to solutions with a pH of 6.5-8.5, while maintaining the transparency of glassware.
Способ осуществл ют следующим образом .The method is carried out as follows.
Полые стеклоиздели нагревают на 10-20°С ниже температуры разм гчени стекла и в полость ввод т сфероидальное тело из пористого жаропрочного материала, пропитанного 0,5-1,5 М раствором фторида аммони .The hollow glassware is heated 10-20 ° C below the softening temperature of the glass and a spheroidal body of porous heat-resistant material impregnated with a 0.5-1.5 M ammonium fluoride solution is introduced into the cavity.
Пример 1. Обрабатываемые бутылки вместимостью 50 см3 из щело- чесиликатного стекла марки АБ-1 нагревают в печи до 550°С. Затем в бутылки вбрасывают сфероидальное тело (шарик ) диаметром 6-7 мм, пропитанное 0,5 М раствором фторида аммони и выдерживают при 550°С 10-20 мин, после чего бутылки отжигают.Example 1. Processed bottles with a capacity of 50 cm3 of alkali-silicate glass of brand AB-1 are heated in an oven to 550 ° C. Then a spheroidal body (ball) with a diameter of 6-7 mm, impregnated with 0.5 M ammonium fluoride solution is inserted into the bottles and kept at 550 ° C for 10-20 minutes, after which the bottles are annealed.
.П р и м е р 2. Шарики диаметром 6-7 мм из легковесного шамота, пропитанные 1,5 М раствором фторида аммони , вбрасывают в обрабатываемые бутылки вместимостью 50 см3 из щелочесили- катного стекла, наход щиес на конвейере , транспортирующем их от стек- лоформующей машины в отжигательную печь..Primeter 2. Balls with a diameter of 6-7 mm from lightweight fireclay, soaked in a 1.5 M solution of ammonium fluoride, are thrown into processed bottles with a capacity of 50 cm3 of alkali-silicate glass that are on the conveyor - molding machine in an annealing furnace.
В таблице представлена химическа устойчивость флаконов, вместимостью 30 см3 из стекла марки АБ-1, пропитанных раствором фторида аммони .The table shows the chemical stability of vials with a capacity of 30 cm3 of AB-1 glass, impregnated with a solution of ammonium fluoride.
Таким образом, флаконы, обработанные фторидом аммони , вл ютс устойчивыми к щелочным растворам с рН 8,5. При этом сохран етс прозрачность из делий .Thus, ammonium fluoride treated vials are resistant to alkaline solutions with a pH of 8.5. At the same time, transparency from the products is maintained.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884628881A SU1671628A1 (en) | 1988-12-30 | 1988-12-30 | Method of increasing chemical resistance of glass vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884628881A SU1671628A1 (en) | 1988-12-30 | 1988-12-30 | Method of increasing chemical resistance of glass vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1671628A1 true SU1671628A1 (en) | 1991-08-23 |
Family
ID=21418995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884628881A SU1671628A1 (en) | 1988-12-30 | 1988-12-30 | Method of increasing chemical resistance of glass vessels |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1671628A1 (en) |
-
1988
- 1988-12-30 SU SU884628881A patent/SU1671628A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР 1293134, кл. С 03 С 23/00, 1984. * |
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