Electronic grade hydrogen peroxide is an extremely important chemical raw material and is widely used in many fields. Its purity standard involves many aspects, and it is detailed here.
The purity standard of electronic grade hydrogen peroxide has strict and detailed regulations according to different application scenarios. In the key field of semiconductor manufacturing, its purity requirements are stringent. Because the semiconductor manufacturing process is extremely precise, fine impurities can have a significant impact on the performance and reliability of the chip. Therefore, the purity of electronic grade hydrogen peroxide used in semiconductor manufacturing usually needs to reach more than 99.999% or even higher to ensure that the content of metal ions, organic substances and other impurities is extremely low. Such high standards are designed to ensure the stability of the semiconductor production process and the excellence of product quality. < Br >
In the field of optoelectronics, such as liquid crystal display (LCD), organic Light Emitting Diode (OLED) manufacturing, etc., the purity of electronic grade hydrogen peroxide is also quite high. Generally speaking, the purity needs to reach more than 99.9% to meet the needs of cleanliness and stability in the manufacture of optoelectronic devices. In this field, hydrogen peroxide is mainly used for cleaning and etching process steps, and its high purity can effectively avoid the adverse effects of impurity residues on the optical and electrical properties of optoelectronic devices.
Furthermore, in the manufacturing process of electronic circuits, electronic grade hydrogen peroxide is often used in the cleaning and etching process of circuit boards. In this scenario, its purity standard should not be underestimated. The purity is usually required to be between 99.5% and 99.9%, which can not only effectively remove contaminants and oxides on the surface of the circuit board, but also ensure the precise control of the circuit pattern during the etching process, avoid problems such as uneven etching due to impurity interference, and then ensure the good performance and reliability of the electronic circuit.
In summary, the purity standards of electronic grade hydrogen peroxide vary depending on the application in different electronic fields, but they all revolve around the core goal of ensuring the high-quality manufacturing of electronic devices and circuits. Different standards from extremely high purity to relatively high purity ensure the steady development of the electronic industry in all aspects.

Electronic grade hydrogen peroxide has a wide range of uses and is useful in many fields.
First, in the field of semiconductor manufacturing, this is a crucial chemical. Semiconductor chip manufacturing processes are complex and require extremely high-purity reagents. Electronic grade hydrogen peroxide can be used for cleaning and etching the surface of the chip. Because the surface of the chip is easily contaminated with impurities during manufacturing, if these impurities are not removed, it will affect the performance and yield of the chip. And electronic grade hydrogen peroxide, with its strong oxidizing properties, can effectively remove various organic and inorganic impurities, making the chip surface extremely clean and ensuring the accuracy and stability of the chip manufacturing process.
Second, in the field of display panel manufacturing, it is also indispensable. In the manufacturing process of liquid crystal display panels, organic Light Emitting Diode display panels, etc., the cleaning of glass substrates is extremely critical. Electronic grade hydrogen peroxide can remove oil stains, metal ions and other impurities on the surface of the glass substrate, improve the bonding force between the substrate and subsequent coatings, electrodes and other materials, and ensure the display effect and service life of the display panel.
Third, it also plays an important role in the solar photovoltaic industry. When manufacturing solar cells, the treatment of the surface of the silicon wafer requires electronic grade hydrogen peroxide. It can corrode and clean the silicon wafer, optimize the surface structure of the silicon wafer, enhance the light absorption efficiency, and then improve the photoelectric conversion efficiency of the solar cell, and help the efficient development of the photovoltaic industry.
Fourth, in the electronic circuit manufacturing industry, this agent is also commonly used in the production of printed circuit boards (PCBs). It can be used for micro-etching treatment on the surface of PCBs to form microscopic rough structures on the surface of copper foil, enhance adhesion to solder mask, green oil and other materials, and also remove oxide layers and pollutants generated during PCB manufacturing to ensure good conduction and stable performance of circuits.

Electronic grade hydrogen peroxide is a crucial chemical in the field of fine chemicals. When storing and transporting, many matters must be taken with caution.
First, the storage device must be made of a specific material. Because of its active chemical properties, it is easy to react with common metals. Therefore, corrosion-resistant plastic containers such as polyethylene and polypropylene, or metal containers lined with special anti-corrosion coatings should be used to prevent hydrogen peroxide from decomposing and ensure that its quality is not affected.
Second, the storage place needs to be temperature-controlled and protected from light. Hydrogen peroxide is easily decomposed when heated or illuminated, releasing oxygen and heat. Therefore, it should be placed in a cool and ventilated warehouse, and the temperature should be maintained in a low range, generally 2-8 ° C. And the warehouse must have good shading measures to avoid direct sunlight.
Third, when transporting, the packaging must be tight and stable. Make sure that the container is well sealed and there is no risk of leakage, and should be equipped with corresponding protective equipment to prevent damage to the container due to collisions and bumps during transportation. Transportation vehicles also need to have good ventilation conditions to avoid excessive temperature in the car.
Fourth, operators should strictly abide by the operating procedures. Whether it is handling, storage, or loading and unloading during transportation, staff should wear appropriate protective equipment, such as protective gloves, goggles, etc., to prevent hydrogen peroxide from splashing and causing harm to the human body.
Furthermore, it is strictly forbidden to mix and transport with reducing substances. Hydrogen peroxide is highly oxidizing, and when it encounters the reducing agent, it is easy to cause violent chemical reactions and even explosions, endangering the safety of personnel and the environment.
All of these are the key points to be paid attention to when storing and transporting electronic-grade hydrogen peroxide. If you are not careful, it may cause a disaster. Therefore, you need to be extremely cautious and do not slack off.

Electronic grade hydrogen peroxide is an ultra-clean and high-purity chemical reagent, which is crucial in the electronics industry. Its preparation process is delicate and complicated. Here are a few common ones as follows:
One is the anthraquinone method. This is the mainstream process of current industrial production. Anthraquinone derivatives are used as working carriers and dissolved in specific organic solvents to form a working liquid. Under the action of palladium catalyst, the working liquid reacts with hydrogen, and anthraquinone is reduced to anthrahydroquinone; subsequently, anthraquinone and oxygen are oxidized to generate hydrogen peroxide and anthraquinone. After extraction, purification and many other processes, electronic grade hydrogen peroxide can be obtained. The reaction is roughly as follows: anthraquinone is hydrogenated to form anthrahydroquinone, and anthrahydroquinone is re-oxidized to produce hydrogen peroxide and anthraquinone, and the cycle goes on and on. This process is mature and stable, and the output is quite large. However, the process is long, there are many equipment, and the purification of the working liquid is quite critical, otherwise it is easy to cause the increase of impurities in the product.
Second, the direct synthesis method. Hydrogen peroxide is directly synthesized from hydrogen and oxygen under the action of a catalyst. The reaction mechanism is that hydrogen and oxygen react at the checking point of catalyst activity to generate hydrogen peroxide. The process is short, the atomic utilization rate is high, and it conforms to the concept of green chemistry, which has broad prospects. However, the reaction conditions are harsh and the catalyst requirements are extremely high. It is necessary to effectively inhibit the deep reaction of hydrogen and oxygen to generate water. At present, it is still in the research and optimization stage, and its industrial application needs to be broken through.
Third, electrolysis method. Through electrolysis of ammonium bisulfate solution, ammonium persulfate is generated at the anode, followed by hydrolysis of ammonium persulfate to generate hydrogen peroxide. The anodic reaction is the loss of electrons of hydrogen sulfate ions to generate persulfate ions, which in turn generates ammonium persulfate; the cathode is the generation of hydrogen from hydrogen ions. This process can be produced continuously, and the product purity is high, but the power consumption is large and the cost is high, which limits its large-scale application.
Fourth, isopropanol oxidation method. Under the action of catalyst, isopropanol reacts with oxygen to produce acetone and hydrogen peroxide. This reaction obtains hydrogen peroxide through the oxidation process of isopropanol, and the by-product acetone can be recycled. However, the raw material isopropanol consumption of this method is large, and the product separation is more complicated, and the industrial application also needs to be carefully considered.

The difference between electronic grade hydrogen peroxide and other grades of hydrogen peroxide is an interesting topic.
Electronic grade hydrogen peroxide is extremely pure in the hydrogen peroxide category. Its purity is extremely high, and the impurity content is extremely small, because the electronics industry has strict requirements on the purity of the chemicals used. In delicate fields such as electronic chip manufacturing, even a very small amount of impurities may have a serious impact on the performance of the chip and cause it to malfunction. Electronic grade hydrogen peroxide requires multiple fine purification processes to ensure that the impurity content is at a very low level to meet the high standards of the electronics industry.
In contrast to other grades of hydrogen peroxide, its application scenarios are different, and the purity requirements are also different. Industrial grade hydrogen peroxide is mainly used in some industrial production processes that require relatively less extreme purity, such as pulp bleaching. In such applications, the presence of moderate impurities does not cause serious harm to the production effect, so the purification process is relatively simple and the cost is low. Medical grade hydrogen peroxide focuses on meeting the needs of the medical and health field. In addition to ensuring a certain purity, it also needs to meet relevant health and safety standards to ensure the safety and effectiveness of medical operations such as wound disinfection.
Electronic grade hydrogen peroxide plays an indispensable role in the electronics industry due to its high purity and low impurity characteristics. It is significantly different from other grades of hydrogen peroxide in terms of purity, production process and Quality Standards due to differences in application scenarios. This is all to adapt to the needs of different industries, each with its own strengths and responsibilities.