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BOROSILICATE-GLASS ZIRCONIA AND LITHIUM-OXIDE COMPRISING WITH HIGH CHEMICAL RESISTANCE AND LOW VISCOSITY AND THE USE OF THAT
BOROSILICATE-GLASS ZIRCONIA AND LITHIUM-OXIDE COMPRISING WITH HIGH CHEMICAL RESISTANCE AND LOW VISCOSITY AND THE USE OF THAT
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机译:高化学抗性,低粘度的硼硅酸盐-氧化锆和氧化锂及其用途
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摘要
The invention relates to a borosilicate glass of high chemical resistance and low viscosity which contains zirconium oxide and lithium oxide. The borosilicate glass has hydrolytic resistance (in accordance with DIN ISO 719), class 1 acid resistance (in accordance with DIN 12116), and class 1 alkali resistance (in accordance with DIN ISO 659), and with a low operating temperature VA of between 1180 DEG C. to 1230 DEG C. and a coefficient of thermal expansion alpha 20/300 of 4.9x10-6 K-1. The borosilicate glass has the composition (in % by weight, based on oxide): SiO2 73-75; B203 7-10; Al203 5-7; ZrO2 1-3; Li20 0.5-1.5; Na20 0-10; K20 0-10; MgO 0-3; CaO 0-3; BaO 0-3; SrO 0-3; ZnO 0-3; ratio of SiO2/B203/=7.5; SIGMA SiO2+Al203+ZrO2 80-83 and SIGMA MgO+CaO+BaO+SrO+ZnO/=3, and fluorides 0-3. The glass is particularly suitable for use as a versatile primary packaging material for pharmaceuticals, for example as ampule glass.
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机译:本发明涉及一种高耐化学性和低粘度的硼硅酸盐玻璃,其包含氧化锆和氧化锂。硼硅酸盐玻璃具有耐水解性(根据DIN ISO 719),1级耐酸性(根据DIN 12116)和1级耐碱性(根据DIN ISO 659),并且具有较低的工作温度VA 1180℃至1230℃,热膨胀系数α20/300为4.9×10-6 K-1。硼硅酸盐玻璃具有以下组成(以氧化物计,以重量%计):SiO 2 73-75; SiO 2 73-75。 B203 7-10; Al 2 O 3 5-7; ZrO2 1-3; Li20 0.5-1.5; Na 2 0-10; K20 0-10;氧化镁0-3;氧化钙0-3; BaO 0-3; SrO 0-3; ZnO 0-3; SiO 2 / B 2 O 3的比> / = 7.5; SIGMA SiO2 + Al2O3 + ZrO2 80-83和SIGMA MgO + CaO + BaO + SrO + ZnO = 3,氟化物0-3。该玻璃特别适合用作药物的通用初级包装材料,例如作为安瓿玻璃。
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