Ground Glass Erlenmeyer Flask
1) Narrow-mouth Bottle: 50ml~10000ml;
2) Big B Bottle: 50ml~3000ml;
3) Horn Mouth: 50ml~5000ml;
4) Wide-mouth Bottle: 50ml/100ml/250ml/500ml/1000ml;
5) Conical Flask With Cover: 50ml~1000ml;
6) Screw Conical Flask:
a. Black Lid (General Sets): 50ml~1000ml
b. Orange Lid (Thickening Type): 250ml~5000ml;
2. Single and Multi-mouth Round Bottom Flask:
1) Single Mouth Round Bottom Flask: 50ml~10000ml;
2) Inclined Three-mouth Flask: 100ml~10000ml;
3) Inclined Four-mouth Flask: 250ml~20000ml;
4) Straight Three-mouth Flask: 100ml~10000ml;
5) Straight Four-mouth Flask: 250ml~10000ml.
***Price List for whole above, inquire us to get
Description
Technical Parameters
In chemical laboratories, various types of glassware are indispensable tools for researchers. Among them, the Ground Glass Erlenmeyer Flask, with its unique shape and versatility, has become one of the most common vessels in the laboratory. The Erlenmeyer flesk is named after the German chemist Emil Erlenmeyer (Richard Auguste Karl Emil Erlenmeyer), who was born in Wiesbaden, Germany in 1825. In the field of chemistry, Erlenmeyer is renowned for his improvements and innovations in chemical instruments. In 1861, he invented this type of flesk with a flat bottom, conical body, and cylindrical neck, which is now known as the Erlenmeyer flesk. This invention greatly improved the heat resistance and stability of glass instruments in chemical experiments at that time, especially when using Bunsen lamps for high-temperature heating.
Sanding process is through a specific process, such as manual grinding, mechanical sandblasting, chemical etching or physical sintering, forming a subtle concave and convex surface on the glass surface, so as to achieve the effect of scattering light, so that the light through the formation of a hazy feeling. This treatment not only increases the beauty of the bottle, but also gives the bottle a unique aesthetic value.
Specifications
Design Features
The design features of the Ground glass Erlenmeyer flask are mainly reflected in the following aspects:
Shape and structure:
The Erlenmeyer flesk has a flat bottom, making it easy to place on the experimental bench without tipping over; The conical shape of the bottle not only increases the stability of the flesk, but also increases the heating area during the heating process, improving the problem of uneven heating; The bottleneck is cylindrical and usually has a slight circular lip, making it easy to seal with cotton, rubber plugs, or other similar items.
Frosted mouth design:
The bottleneck of the product usually has a frosted mouth, which is one of its main differences from other types of flesks. The frosted mouth design allows the flesk to fit tightly with the glass stopper, thereby preventing liquid overflow or gas leakage. In addition, the frosted mouth also facilitates marking or labeling on the flesk for better identification and tracking of samples in experiments.
Scale and marking:
For the convenience of measuring and recording the volume of liquid, the side of the Erlenmeyer flesk is usually marked with a scale line. These scale lines can be directly printed on glass or achieved by coating a layer of enamel or glass glaze on the frosted surface. In addition, there may be a frosted or enamel spot on the bottom or side of the flesk for pencil marking.
Material and Durability:
Erlenmeyer flesks are typically made of high-quality glass to ensure their corrosion resistance and reusability. This glass material can withstand high temperature heating and corrosive substances generated by chemical reactions, ensuring the accuracy and safety of experiments.
Usage method
When using the Ground glass Erlenmeyer flask, the following aspects should be noted:
Before use, the flesk should be cleaned with detergent and water, then rinsed with distilled water and dried. For flesks that require high-temperature disinfection, they can be placed in an oven and heated to an appropriate temperature for drying and disinfection.
When using a flesk with a frosted mouth, ensure that the glass stopper fits tightly with the neck. If gas needs to be introduced or released into the flesk, a small hole can be drilled in the glass stopper and a glass or plastic tube can be inserted as a vent.
Due to its stable shape and easy to grip neck, the Erlenmeyer flesk is highly suitable for titration operations. When conducting titration experiments, the flesk can be fixed on the titration rack and the solution can be added dropwise to the flesk using a burette. Meanwhile, pH meters or other measuring instruments can be used to monitor and record the solution in real-time.
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The difference with ordinary glass conical bottle
| Category | Ground Glass Erlenmeyer Flask | Plain Glass Conical Bottle |
| Composition and manufacturing process | Its surface is treated with a special scrub, which may be achieved by chemical methods or physical scratches. This treatment changes the smoothness of the glass surface, creating tiny bumps that give it a matte effect. | It is made of silica, calcium oxide and other raw materials after high temperature melting, the surface remains smooth and transparent. |
| Appearance and texture | The surface has a unique frosted texture, which not only increases the aesthetic appearance of the bottle, but also makes it more comfortable to touch. At the same time, the matte effect also scatters and refracts light, reducing transparency and giving the bottle a soft, hazy aesthetic. | The surface is smooth and transparent, and the contents of the bottle can be clearly seen. Its appearance is simple and generous, but it lacks the texture and beauty unique to frosted glass conical bottles. |
| Use and function | Because of its unique frosted texture and poor transparency, it is often used as a decorative material or semi-private material. For example, in the laboratory, the conical bottle can be used to store reagents or samples that need to be sheltered from light. In addition, its sealing performance is also good, can effectively prevent the intrusion of external factors such as air, moisture and dust, and protect the quality and freshness of the items in the bottle. It is also widely used in the packaging and storage of cosmetics, perfumes, essential oils and other products. | Because of its excellent light transmission, it is often used for occasions where the contents of the bottle need to be clearly observed. For example, in chemical experiments, ordinary glass conical bottles can be used for titration, reaction and other processes to facilitate the observation of reaction processes and results. At the same time, it is also suitable for the storage and display of various transparent or translucent liquid items. |
| Price and cost performance | In general, because frosted glass conical bottles need to go through a special frosted treatment process, its manufacturing cost is relatively high, so the price may also be slightly higher than ordinary glass conical bottles. However, considering its unique beauty and texture and good sealing performance, it has a higher cost performance in some occasions. | |
Storage condition
Environmental requirement
Drying
Frosted glass conical bottles should be stored in a dry environment to prevent mildew or corrosion caused by moisture. Excessive humidity may cause water stains or mildew on the surface of the glass, affecting the appearance and sealing performance.
Light protection
Since frosted glass conical bottles are often used to store reagents or samples that need to be shielded from light, they should be stored in a place that is shielded from light to reduce the impact of light on the contents of the bottle. Prolonged exposure to sunlight may cause the contents of the bottle to deteriorate or fail.
Cleanliness
The storage environment should be kept clean to reduce the contamination of dust and dirt on the frosted glass conical bottle. Clean the storage area regularly to ensure that it is free of dust and debris.
Storage method
Classification storage
Different types and different specifications of frosted glass conical bottles should be classified for easy search and use. At the same time, it can also avoid confusion and cross-contamination between different items.
Safe placement
Frosted glass conical bottles should be securely placed on a stable shelf or in a dedicated storage cabinet to prevent tipping or rolling resulting in damage. Tall bottles should be kept inside to avoid the risk of tipping.
Matching use
Frosted glass conical bottles with ground stoppers should be used together with stoppers to prevent mixing. Use rubber bands for storage to ensure that the stopper is not lost or damaged. For long-term storage of ground utensils, a piece of paper should be placed between the stoppers to avoid long-term sticking.
Regular inspection and maintenance
Check the mouth and cap of the bottle
Check the mouth and cap of the frosted glass conical bottle regularly to ensure that the sealing performance is good. If it is damaged or deformed, it should be replaced in time.
Cleaning and disinfection
After use, the frosted glass conical bottle should be cleaned in time and stored after drying. During the cleaning process, be careful to avoid collision or breakage of the bottle mouth. At the same time, clean and disinfect with appropriate cleaners and utensils in accordance with laboratory safety regulations.
Keep dry
Check the storage area regularly to ensure that the frosted glass conical bottle remains dry. If there is dampness, measures should be taken in time, such as using a dehumidifier.
Dilution of solution
Solution dilution steps
Frosted glass conical bottle
Solution to be diluted
Distilled or deionized water (diluent)
Pipette, gauge or burette (measuring tool)
Stir stick or magnetic stirrer
The volume of distilled water required is calculated based on the dilution required and the volume of the stock solution.
For example, to dilute 100mL of a solution with a concentration of 1mol/L to 0.2mol/L, 400mL of distilled water is added (calculated according to the C1V1=C2V2 formula).
Use a pipette, measuring tube, or burette to accurately measure the desired volume of distilled water.
Slowly add the distilled water to the frosted glass conical bottle while stirring with a stirring stick or magnetic stirrer to ensure even dilution.
After adding distilled water, the stock solution to be diluted is slowly added to the conical bottle.
Continue stirring until the solution is completely mixed.
Mark the diluted solution name, concentration, and dilution date on the frosted glass conical bottle.
Record the relevant data during the dilution process, such as the volume of raw liquid, the volume of distilled water and the dilution multiple.
Precautions
Clean and dry:
Before use, ensure that the inside and outside of the frosted glass conical bottle are clean and free of impurities and dirt.
After use, the conical bottle should be cleaned and dried in time to avoid residues interfering with the next experiment.
Accurate measurement:
Use an accurate measuring tool, such as a pipette, measuring cylinder or burette, to ensure that the volume of diluent and stock solution is accurate.
Stir well:
After adding diluent and stock solution, use stirring rod or magnetic stirrer to stir thoroughly to ensure uniform solution.
Avoid pollution:
During operation, avoid using unclean utensils or reagents to prevent contamination of the solution.
Safe operation:
During the dilution process, take care to wear appropriate protective equipment, such as lab coats, gloves and goggles.
Avoid pouring the hot solution directly into the cold conical bottle to prevent cracking. At the same time, pay attention to the changes in heat that may occur during the dilution process.
Record data:
During the dilution process, the required data are recorded in time, such as the volume of raw liquid, the volume of distilled water, the dilution ratio and the final concentration.
Note the dilution:
If the solution needs to be diluted to a very high multiple (such as 1000 times), it may be necessary to adopt a step-by-step dilution method to reduce errors and improve accuracy. For example, the original solution can be diluted to a certain multiple, and then the diluted solution can be further diluted to the desired multiple.
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