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An explanation of ampoule knowledge

2020-01-08 21:09

【Article overview】Ampoules, also known as glass injection vials or glass antibiotic bottles, are commonly used to contain antibiotics such as penicillin. Hence, they are often referred to as glass penicillin vials or penicillin glass bottles. They are also used for lyophilized products and are sometimes called lyophilized glass vials, powder-injection vials, or water-injection vials.

　　Ampoules, also known as glass injection vials or glass antibiotic bottles, are commonly used to contain antibiotics such as penicillin. Hence, they are often referred to as glass penicillin vials or penicillin glass bottles. They are also used for lyophilized products and are sometimes called lyophilized glass vials, powder-injection vials, or water-injection vials.

　　According to the manufacturing process, injection vials are divided into molded injection vials and drawn-and-blown injection vials. Molded vials are slightly cheaper, but their wall and bottom thicknesses are uneven, resulting in poorer aesthetics. Drawn-and-blown vials are more expensive, yet they boast superior aesthetics, excellent transparency, and good stability.

　　By color, they are categorized as: white injection vials, transparent injection vials, or white-material glass injection vials; brown injection vials, tea-colored injection vials, or amber-colored glass injection vials.

　　Ampoules are classified according to their glass material as follows: sodium-calcium glass injection vials, low-borosilicate glass injection vials, and neutral glass injection vials. Sodium-calcium glass has a thermal expansion coefficient α = (7.6–9.0) × 10^(-6) K^(-1) (20–300℃) and belongs to Class II and Class III glass materials. Such glass materials are typically subjected to sulfurization treatment, achieving a surface water resistance rating of Grade 2. High-borosilicate glass belongs to Class I material; borosilicate glass includes neutral glass with α = (4–5) × 10^(-6) K^(-1) (20–300℃) and 3.3-borosilicate glass with α = (3.2–3.4) × 10^(-6) K^(-1) (20–300℃).

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