Introduction Whether a dropper can be recycled is not a simple yes or no. A pipette dropper is an assembly of several parts made from different materials, and household or industrial recycling systems are usually designed for single-material items. This article explains what a dropper consists of, what usually happens to each part, and how…
Introduction Glass is widely used for medicines because it is chemically stable, does not absorb the contents and is a very good barrier to gases and moisture. Not all pharmaceutical glass is the same, though. Pharmacopoeias such as the European Pharmacopoeia classify it into types according to chemical (hydrolytic) resistance. This article explains the main…
The pharmaceutical bottle dropper developed over the nineteenth and twentieth centuries from a simple idea: a glass tube with a flexible bulb that draws up and releases small amounts of liquid. It grew into a standard closure for medicines, tinctures and eye preparations once glassmaking, rubber technology and pharmacy practice had all reached a certain…
Pharmaceutical bottles are brown, or more precisely amber, because the coloured glass absorbs a large part of ultraviolet and short-wavelength visible light, which can break down light-sensitive ingredients. Amber glass does not make a product last forever, but it slows photodegradation and so helps keep the contents closer to their intended quality for longer. How…
Introduction There is no single standard size for pharmaceutical bottles. Sizes depend on the product (oral liquid, drops, tablets, cream), the market and the dosing regime. For small liquid products dispensed with a dropper, a fairly consistent range of sizes is used. This article covers those sizes and what to consider when choosing one. Common…
A dropper is used to measure out and dispense a liquid in small, controlled amounts, one drop at a time. It does this by combining a rubber or elastomer teat, which creates suction when squeezed, with a narrow glass or plastic pipette that holds the liquid until it is released. Droppers are used in cosmetics,…
Droppers come in sizes that match the bottle they fit, and for standard dropper bottles the key size is the DIN18 (GL18) thread. A DIN18 dropper fits DIN18 bottles of 5, 10, 15, 20, 30, 50 and 100 ml, while the glass pipette inside is cut to a length that suits the bottle height. Thread…
AI assistant – answers may contain mistakes. Prices and stock are checked live in the shop.
