White Powder, Hygroscopic, Alkaline After Hydrolysis Magnesium Oxide

Packaging and Storage

Magnesium oxide (MgO) has a molecular formula of MgO and a molecular weight of about 218.16. It is a white powder with a density of 2.65g/cm3 and a melting point of 392°C. Magnesium oxide is a white powder that is hygroscopic and alkaline after hydrolysis. It is easily decomposed by heat, deliquesces in the air, is soluble in water, and is easily soluble in ethanol . It decomposes into magnesium oxide and hydrated magnesium oxide at high temperatures, while releasing carbon dioxide. Magnesium oxide is an inorganic compound that is insoluble in water and ethanol. Its solution is easily oxidized to MgO(OH)2 in the air. It is a colorless crystal or white powder that is slightly soluble in ethanol, and chloroform, but insoluble and chloroform.

Specifications

Uses of magnesium oxide:

Magnesium oxide has a wide range of uses and can be used as a refractory additive, activated carbon, filter aid, glass and ceramic additive, etc. It can also be used as a colorant, decolorizer and purifier for glass.

Characteristics of magnesium oxide:

Highly active surface characteristics of magnesium oxide Highly active magnesium oxide generally refers to active magnesium oxide with an activity value greater than 120. Active magnesium oxide has obvious characteristics and higher adsorption than ordinary magnesium oxide. The reason is that there are defects on its atomic surface, so it has extremely high chemical activity and physical adsorption capacity. The particles of highly active magnesium oxide are more delicate than ordinary magnesium oxide, and the surface atomic ratio of the product is larger. The larger ratio has extremely high activity, and the diffusion rate of surface atoms is very high, so it has good adsorption performance.

Characteristics

1. Strong Chemical Stability: It maintains its chemical stability at high temperatures and is resistant to decomposition or deterioration.
2. Non-toxic and Harmless: It is non-toxic and harmless to humans and the environment, without generating harmful substances during use.
3. Renewable: It is a renewable resource that can be recycled through natural reactions.
4. High Insulation: It exhibits excellent insulating properties, suitable for the electronics industry.

Advantages

1. Enhanced Product Performance: Used in building materials such as glass and ceramics, it improves product quality and performance.
2. Environmental Applications: It can be used in wastewater treatment, flue gas desulfurization, and soil remediation, contributing to environmental protection.
3. Biomedical Applications: In the medical field, magnesium oxide serves as an antacid ingredient to relieve discomfort caused by excessive stomach acid secretion.

Application Fields

1. Industrial Applications: Used in the manufacture of fireproof boards, fireproof coatings, refractory bricks, and other fireproof materials, as well as catalysts, desiccants, and adsorbents.
2. Agriculture and Chemical Industry: Used in the production of fertilizers, pesticides, and dyes, enhancing product quality and performance.
3. Electronic Components: As a packaging material for electronic components, it improves their stability and reliability.
4. Biomedicine: Used in the manufacture of artificial bones, teeth, and other medical devices, with good biocompatibility and antibacterial properties.

Production Techniques

Magnesium oxide can be produced through various methods, including the carbonation process, calcination of magnesium hydroxide, soda ash process, and ammonium bicarbonate process. The choice of method often depends on the specific needs and characteristics of downstream industries. For example, the carbonation process can produce lightweight magnesium oxide, while the calcination of magnesium hydroxide can produce high-purity magnesium oxide.

Theory (Background)

Magnesium oxide consists of Mg²⁺ ions and O²⁻ ions bound together through ionic bonds to form a crystal lattice. At high temperatures, magnesium oxide exhibits excellent physical and chemical stability, making it a model system for studying crystal vibration characteristics. Additionally, magnesium oxide is widely regarded as the most effective metal stabilizer compared to silicate cement, lime, and others due to its superior buffering capacity, cost-effectiveness, and ease/safety of operation.

Services

Magnesium oxide enterprises should establish an application technology department with professional technical service personnel. These personnel should possess extensive knowledge and experience in production processes, technology, and magnesium oxide applications, enabling them to provide professional technical support and solutions to customers.

Packaging and Storage

Magnesium oxide should be stored in a cool, well-ventilated warehouse, avoiding direct sunlight and high temperatures. The warehouse should be kept away from fire sources and heat to prevent magnesium oxide from undergoing chemical reactions or fires due to high temperatures. The packaging of magnesium oxide should be intact to prevent leakage, damage, or dropping during transportation. According to the HG/T 2573-2012 standard, the packaging of industrial light magnesium oxide must comply with specific regulations.

Preventive Measures

1. Industrial Protection: Operators should wear appropriate personal protective equipment, such as dust masks, chemical safety goggles, breathable work clothes, and rubber gloves, during industrial use.
2. Medical Monitoring: When using magnesium oxide preparations in the medical field, they should be used as prescribed by a doctor to avoid long-term or excessive use, which may cause harm to the human body.
3. Environmental Monitoring: During storage and transportation, clear emergency response plans should be in place to address potential leaks or other emergencies.