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What Are Dropper Bottles?

While they vary in size, dropper bottles are generally small vessels whose purpose is to store, draw, transfer, and deposit small amounts of liquid. Built into the lid of the bottle is a rubber suction bulb connected to a pipette, which may be made of glass. By immersing the tip of the pipette in the liquid and squeezing the rubber suction bulb, the user can draw liquid into the pipette to transfer it. Dropper bottles are useful in a variety of applications, including medicine, lab work, and art. A dropper bottle would be handy for almost any purpose requiring precise measurement and transfer of small amounts of liquid.

How do Dropper Bottles Work?

The feature that distinguishes a dropper bottle from a conventional storage bottle is its unique cap assembly. Like a normal bottle cap, the cap assembly of a dropper bottle screws onto the top of the bottle and seals the contents inside. However, the cap assembly of a dropper bottle features a suction bulb and pipette to draw out liquids from the bottle. A squeeze of the rubber suction bulb creates a vacuum that sucks liquid up through the pipette, an open-ended tube. Once the pipette contains liquid, it can be extracted with another squeeze of the bulb. By carefully calibrating the squeeze, the user can extract as little as a single drop of liquid from the pipette. This makes dropper bottles an ideal solution for extracting, moving, and depositing small amounts of liquid.

Uses for droppers

There are countless uses for dropper bottles. Dropper bottles are frequently used for medical applications. The eyedropper is a prime example of this use. Dropper bottles may also be used to dispense medication into the ears, mouth, or onto the skin. The recent rise in the popularity of CBD has also created a surge in demand for dropper bottles as a dispensing tool.

There are abundant cosmetic uses for dropper bottles as well. They're especially useful for essential oils, which often only require a few drops for each use. A glass dropper bottle is a perfect tool for adding essential oils to baths, solutions, or directly to the skin.

Does My Business Need Bulk Glass Dropper Bottles?

Bulk glass dropper bottles can be useful to a variety of businesses. Examples of such businesses might include essential oil blending and distribution, CBD products, fruit and vegetable extracts, and specialty food ingredients. Chemists, homeopaths, massage therapists, aromatherapists, artists, bakers, and chefs are among the many professionals who might need bulk glass dropper bottles.

Where To Buy Wholesale Glass Dropper Bottles in Bulk

Acme Vial is an incredible resource for purchasing wholesale glass dropper bottles in bulk. Acme Vial offers an industry-leading variety of glass dropper bottles in a huge selection of sizes. In addition to dropper bottles, Acme Vial carries glass vials, screw-top vials, display vials, and a variety of closures and lids. 

How to prevent deterioration of the rubber bulb

The rubber bulb is an essential element of a dropper bottle's functionality. To prevent it from deteriorating, be sure to store the bottle upright so that the liquid stored inside doesn't contact the interior of the bulb. It may also be helpful to remove the dropper and replace it with a normal lid when not in use.

Directions

Dropper bottles are simple to use. Fill your bottle with your liquid of choice. Squeeze the rubber suction bulb and hold it while you dip the tip of the dropper into the liquid. Release the squeeze; doing so will create a suction that draws the liquid up into the dropper. Another gentle squeeze of the bulb will expel the liquid.

Unit Conversion Chart

There are a couple of common ways of measuring liquids. The metric unit of liquid volume is the milliliter (mL), equal to one one-thousandth of a liter. This is the smallest common unit of liquid measurement and is, therefore, the most precise. The fluid ounce (fl. oz) is another common unit of measurement. A third unit of liquid measurement is a dram (fl. dr.), equal to one-eighth of a fluid ounce. Certain dropper bottles, called dram dropper bottles, are designed to hold precisely this amount. For ease of conversion, check out the chart below:

A milliliter (mL) is .27 dram (fl. dr), or .034 fluid ounces (fl. oz.) 

A dram (fl. dr.) is 3.7 milliliters (mL), or .125 fluid ounces (fl. oz.) 

A fluid ounce (fl oz.) is 29.57 milliliters (mL), or 8 drams (fl. dr.)

Dropper Bottle FAQs:

How do I fill dropper bottles?

The best way to fill a dropper bottle is to use a clean funnel. Begin with a clean, dry funnel. Insert the funnel's narrow tip into the bottle's mouth and slowly pour your liquid of choice into the funnel until the dropper bottle is full. With a sufficiently large bottle and a steady hand, you can skip the funnel, although the funnel is a great method to avoid unnecessary mess. 

What's the difference between a dropper and a pipette?

A pipette is simply one particular part of a dropper assembly. The pipette specifically refers to the long, narrow tube that holds liquid. Glass pipettes come in a variety of sizes and lengths, depending on their intended use. In addition to the pipette, the rest of the dropper assembly consists of a cap which screws onto the bottle, and a rubber bulb which uses suction to draw out and dispense liquids.

Can I sterilize the dropper?

From time to time, it may be necessary to clean and sterilize your droppers. There are a few different methods by which to do this. The simplest solution is to gently place the dropper into boiling water for 60 seconds. It may be prudent to use a pair of tongs to do this to avoid splashing. After removing the dropper from the boiling water, place it on a clean surface to cool. When it's cool enough to touch, squeeze the bulb to expel any remaining water from the pipette. Then, dry the dropper with the open end of the pipette facing down. For non-food and non-medical use droppers, a solution of bleach diluted in water may also be used for sterilization. Make sure the dropper is fully immersed in the solution and rinse thoroughly to remove any bleach residue.

Are Dropper Bottles Child-resistant?

Are dropper bottles child-resistant? In a word: it depends. Certain manufacturers produce dropper caps that are specifically designed to be child-resistant. These caps are usually designated "C-R" (for "child-resistant") or "CRC" (for "child-resistant caps.”) The proper use of child-resistant caps is important to avoid poisoning. Even if you use a child-resistant cap, it is always best practice to keep sensitive substances out of reach of children and label them properly.