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Formulation for medicinal neutral boron silicate glass

A technology of neutral borosilicate glass and formula, which is applied in the field of glass formula, can solve problems such as unfavorable medical materials, and achieve the effects of low cost, high chemical resistance and hydrolytic stability, and simple process flow

Inactive Publication Date: 2008-03-26
东营力诺玻璃制品有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If preforms made of alkali-containing borosilicate glass are further processed into containers under hot conditions, the highly volatile alkali metal borates evaporate and condense in cooler areas, forming Precipitation, which is not good for medical materials

Method used

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Embodiment Construction

[0020] A pharmaceutical neutral borosilicate glass formulation, the main components are quartz sand, aluminum hydroxide, borax pentahydrate, soda ash, barium carbonate, potassium carbonate, etc., and its weight ratio is:

[0021] Quartz sand 168-178Kg

[0022] Feldspar powder 14.7-18.7Kg

[0023] Borax pentahydrate 49-51Kg

[0024] Soda ash 8-12Kg

[0025] Barium carbonate 8.6-9.4Kg

[0026] Sodium nitrate 0.4-0.6Kg

[0027] Calcite 1-2Kg

[0028] Fluorite 0-4Kg

[0029] Potassium carbonate 8.5-9.5Kg

[0030] Salt 0.8-1.6Kg

[0031] Cerium oxide 0.5-0.9Kg

[0032] Broken glass 120Kg

[0033] A formulation of pharmaceutical neutral borosilicate glass, the preferred weight ratio of which is:

[0034] Quartz sand 173Kg

[0035] Feldspar powder 16.7Kg

[0036] Borax Pentahydrate 50Kg

[0037] Soda ash 10Kg

[0038] Barium carbonate 9Kg

[0039] Sodium nitrate 0.5Kg

[0040] Calcite 1.5Kg

[0041] Fluorite 2Kg

[0042] Potassium carbonate 9Kg

[0043] Salt 1.2Kg ...

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Abstract

The present invention is one kind of neutral borosilicate glass for medicine production. The neutral borosilicate glass has recipe comprising quartz sand 168-178 Kg, feldspar powder 14.7-18.7 Kg, borax pentahydrate 49-51 Kg, sodium carbonate 8-12 Kg, barium carbonate 8.6-9.4 Kg, sodium nitrate 0.4-0.6 Kg, calcite 1-2 Kg, fluorite 0-4 Kg, potassium carbonate 8.5-9.5 Kg, salt 0.8-1.6 Kg, cerium oxide 0.5-0.9 Kg and cullet 120 Kg. It has high chemical stability, high hydrolysis stability, few alkali metal volatilizations, simple production process and low cost.

Description

Technical field: [0001] The invention relates to a glass formulation, in particular to a pharmaceutical neutral borosilicate glass formulation. Background technique: [0002] With the rapid development of my country's pharmaceutical industry, the quality requirements for pharmaceutical packaging materials are getting higher and higher, and the corresponding pharmaceutical glass requires higher acid and alkali resistance. During the further processing of primary packaging materials for medical pharmaceuticals, such as ampoules or vials, high demands are placed on hydrolytic stability in addition to very high chemical resistance of the glass. If preforms made of alkali-containing borosilicate glass are further processed into containers under hot conditions, the highly volatile alkali metal borates evaporate and condense in cooler areas, forming Precipitation, which is not good for medical materials. Invention content: [0003] The purpose of the present invention is to pro...

Claims

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Application Information

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IPC IPC(8): C03C3/095C03C6/02
CPCC03C1/00
Inventor 李敏高振岭高善庆赵云昭张绪全贾鸿志
Owner 东营力诺玻璃制品有限责任公司
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