Water glass Water glass, commonly known as "effervescent alkali", is a combination of alkali metal oxides and silicon dioxide can be easy to water a metal silicate material. Water glass commonly used in construction projects is an aqueous solution of sodium silicate. Its chemical formula is: Na2O-nSiO2. also known as soluble glass. Soluble in water for sodium silicate, the simplest chemical formula for Na2SiO3, the actual composition is more complex, is a variety of sodium silicate mixture, its chemical formula should be mNa2O-nSiO2. pure Na2SiO3 for the colorless orthorhombic crystals, the melting point of 1088 ° C. It is pentahydrate Na2SiO3 for the colorless orthorhombic crystals, the melting point of 1088 ° C. The water glass is commonly used in construction projects is a water solution of sodium silicate. Its pentahydrate Na2SiO3-5H2O is white triclinic crystal, melting point 72.2 ℃, density 1.749 g/cm3; 100 ℃ when the loss of water. Pure Na2SiO3 is solid, the production method is: quartz sand or quartzite powder added Na2CO2 or Na2SO4, melted in the glass furnace, at a temperature of 1300-1400 degrees Celsius to get solid water glass. Solid water glass in the 0.3-0.4 MPa pressure steam pot, melted in water, a viscous water glass solution.
How to use glass water correctly? How to use glass water? How to use glass water
Last time, auto parts I introduced you to the role and types of automotive glass water. Now the quality of auto glass water on the market is uneven, the price difference is more prominent. So, how do consumers choose the right auto glass water? This will be the problem we want to explore today.
Auto parts experts, automotive glass water is generally divided into the summer use of 0 ℃ glass water and winter use of -20 ℃, -35 ℃ glass water, the main function is to effectively clean the automotive windshield on the dust, stains, rapid removal of insect glue, bird droppings, grease, foreign frost.
To choose the right auto glass water, you first need to figure out the difference between good and bad auto glass water.
High-quality automotive glass water is made of deionized water and various types of environmentally friendly additives made of automotive glass water, with decontamination, water repellent, anti-freezing, anti-static, corrosion prevention and other functions. Can effectively remove dust, lubricants, diesel oil, residual polish wax, gum, bird droppings, highway insect glue. It can quickly disperse the rainwater on the windshield, avoiding the driver's windshield blurring under strong rainfall. It can neutralize the electric charge generated by the friction between windshield and wiper and substances in the air, enhance the conductivity of the glass surface, resist static electricity, prevent the charge from adsorbing dirt and affecting the field of vision.PH value is always in the neutral, does not contain all kinds of metal ions, and does not have any corrosive effect on automobile paints, rubbers, and all kinds of metals. It can quickly disperse the rainwater on the windshield to avoid blurring of the windshield under strong rainfall. It can neutralize the electric charge generated by the friction between the windshield and the wipers and the substances in the air, enhance the electric conductivity of the glass surface, resist static electricity, prevent the electric charge from adsorbing dirt and affecting the field of vision.The PH value is always in the neutral, does not contain all kinds of metal ions, and does not have any corrosive effect on automobile paints, rubbers, and all kinds of metals. It can form a protective film on the windshield, make the auto glass more clear and transparent, no corrosion on the auto paint surface, no bloating and dissolving effect on rubber.
Winter special glass water, but also in the -35 ℃ low-temperature environment, direct dissolution of foreign frost, can be quickly spread on the windshield, to keep the glass clear and bright, to restore broad vision.
Poor quality glass water will often appear precipitation, discoloration, odor and other conditions. Because it contains too high alcohol content, it will have an adverse effect on the car paint, damage to the gloss of the car paint, hardness, and will be in contact with the rubber and plastic parts to produce expansion and dissolution, reduce the hardness of these accessories, as well as to produce color differences. As the car glass water in the cleaning glass will flow to the air conditioning air intake near the glass water volatile odor will also be along the automotive air conditioning ventilation pipe into the cab, deterioration of moldy glass water and glass water made of poor quality chemical raw materials volatile harmful odor, will become a hazard to the owner's health of the invisible killers.
I hope the above information will help you.
How to use water glass
Water glass has a wide range of uses, almost everywhere.
In the chemical system is used to manufacture silica gel,
silica, zeolite molecular sieve, sodium metasilicate pentahydrate, silica sol, layer of silica and instant powdered sodium silicate, sodium potassium silicate and other kinds of silicate products,
is the basic raw material of silicon compounds
Chemical industry is how to use the water glass
Hello, consulted in the Dali China The water glass factory in Dali, the development of water glass plant to do professionals. He said that water glass is divided into two categories of sodium water glass and potassium water glass, commonly known as effervescent alkali. Sodium water glass is an aqueous solution of sodium silicate, the molecular formula for Na2O-nSiO2 and K2O-nSiOz. Potassium water glass is an aqueous solution of potassium silicate, the molecular formula for K2O-nSiO2. Sodium waterglass is mainly used in civil engineering. Potassium water glass can also be used when the engineering requirements are higher. High-quality pure water glass is colorless transparent viscous liquid, soluble in water. It is yellowish or greenish gray when it contains impurities.
The wide application of sodium silicate products makes this industry occupy an important position in the national economy. For example, Zhongfa Water Glass is located at No. 63-2, Yanfeng Industrial Zone (Daya Ling), Dali, Nanhai, which is the production place. The office place is in Yanbu Pingdi Fabric Market Phase II, Block 3.
Sodium silicate has a very wide range of uses, almost in all sectors of the national economy.
In the stone *** industry is used to manufacture petroleum catalytic, cracking with silica-aluminum catalysts;
In the chemical industry, is used to manufacture silica gel, zeolite molecular sieve, precipitated silica, a variety of silicate class, is the basic raw material of silicide;
In the light industry, is the indispensable filler in the laundry detergent, soap, sodium silicate is itself a highly effective detergent.
In the textile industry, it is used for dyeing, bleaching and sizing;
In the machinery industry, it is widely used in casting, precision casting, grinding wheel manufacturing and as a metal anticorrosive;
In the construction industry, it is used in the manufacture of quick-drying cement, acid-resistant cement, waterproofing oil, soil curing agent, fire-resistant materials, corrugated boards, etc.
In mining, it is the basic raw material of silica;
In the light chemical industry, it is indispensable filler in washing powder and soap, and sodium silicate itself is also an efficient detergent.
In mining, it is used for ore dressing, waterproofing and plugging;
In agriculture, it is used to make silica fertilizer;
Wood has fireproof property after dipping in sodium silicate;
Eggs can be stored for a long time without deterioration after being dipped in sodium silicate; sodium silicate with high modulus is the binder of cardboard and carton.
The use of water glass and the ratio of water?
Water glass is a liquid state of sodium silicate, more often called water glass in the South, the North is more often called effervescent alkali. Sodium silicate is commonly known as water glass, liquid sodium silicate is colorless, slightly colored transparent or translucent viscous liquid. Solid sodium silicate is colorless, slightly colored transparent or translucent glass block. The form is divided into liquid, solid, water quenching three kinds. Theoretically, these substances are called "colloid".
Ordinary sodium silicate is slightly light blue lumps or granular solids, high temperature and high pressure dissolution is slightly colored transparent or translucent viscous liquid.
Molecular Formula
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Na2O-mSiO2
The proportion of quartz sand and alkali, i.e., the molar ratio of SiO2 and Na2O, determines the modulus M of sodium silicate, the modulus of which shows the composition of the sodium silicate and affects the physical and chemical properties of the sodium silicate, and therefore different modulus of sodium silicate has different uses. It is widely used in many fields such as general casting, precision casting, paper making, ceramics, clay, mineral processing, high age soil, washing and so on.
Technical indicators
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Technical indicators of liquid sodium silicate
Indicator name Technical indicators
Silicon dioxide (%) ≥26.0 ≥29.2 ≥25.7
Sodium oxide (%) ≥8.2 ≥12.8 ≥10.2
Boehmian degree 39.0- 41.0 50.0-52.0 44.0-46.0
Water Insoluble Matter (%) ≤0.38 ≤0.36 ≤0.38
Iron (%) ≤0.09 ≤0.08 ≤0.09
Modulus 3.1-3.4 2.2-2.5 2.6-2.9
Technical indexes of solid sodium silicate
Indicator name Technical indicators
Modulus (M) 3.1~3.4 2.6~2.9 2.2~2.5
Soluble solids (%) ≥99 ≥99 ≥99
Iron (%) 0.12 0.12 0.10
Uses
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The use of water-glass is very wide, almost All over the national economy in all sectors. In the chemical system is used to manufacture silica gel, silica, zeolite molecular sieve, sodium metasilicate, silica sol, layer of silica and instant powdered caustic soda, sodium potassium silicate and other silicate products, is the basic raw material of silicon compounds. In economically developed countries, the deep processing series of products with sodium silicate as raw material has been developed to more than 50 kinds of products, and some of them have been applied in the field of high, precise and pointed science and technology; in light industry, it is an indispensable raw material in detergents such as laundry detergent, soap and so on, and it is also a water softener and sedimentation aid; in textile industry, it is used for dyeing aid, bleaching and sizing; in machinery industry, it is widely used in casting, manufacturing of abrasive wheels, and metal anticorrosive agent, etc.; in construction industry, it is used for manufacturing quick-drying cement. In the construction industry for the manufacture of fast-drying cement, acid-resistant cement waterproof oil, soil curing agent, refractory materials, etc.; in agriculture can be manufactured silica fertilizer; in addition, used as a silicon-aluminum catalyst for catalytic cracking of petroleum, soap filler, corrugated cardboard adhesive, metal corrosion inhibitor, water softener, detergent additives, refractory materials and ceramic materials, textiles, bleaching, dyeing and slurry, mine beneficiation, waterproofing, leakage, wood, fire prevention, food preservation, and the production of adhesives. Fire prevention, food preservation, and adhesive production, etc. ....... The following:
1, brush the surface of the material to improve weathering resistance
Water glass solution brush or impregnated materials, can penetrate into the crevices and pores, cured silica gel can block the capillary channels, improve the density and strength of the material, thus improving the material's resistance to weathering ability. However, water glass shall not be used to paint or impregnate gypsum products. Because water glass reacts with gypsum to generate sodium sulfate (Na2SO4), which crystallizes and expands within the pore space of the products, leading to cracking and destruction of gypsum products.
2, reinforced soil
Water glass and calcium chloride solution alternately injected into the soil, the two solutions quickly react to generate silica gel and calcium silicate gel, play a role in cementing and filling the pore space, so that the strength and bearing capacity of the soil to improve. Commonly used in the foundation reinforcement of powdered soil, sandy soil and fill soil, known as two-fluid grouting.
3, the preparation of quick-setting waterproofing agent
Water glass can be formulated with a variety of alum into a quick-setting waterproofing agent, used for plugging, caulking and other local repair. This multi-alum waterproofing agent coagulation speed ......
Waterproofing treatment in the "water glass" how to use
The glass of water you said should be sodium silicate, the South is known as water glass, the North is known as the foam alkali. Sodium silicate is commonly known as water glass, liquid sodium silicate is colorless, slightly colored transparent or translucent viscous liquid. Solid sodium silicate is colorless, slightly colored transparent or translucent glass block. The form is divided into liquid, solid, water quenching three kinds. Theoretically, these substances are called "colloid".
The bathroom waterproofing need to pay attention to:
In recent years, the indoor waterproofing advocate a rigid substrate, and then add a flexible surface layer of the practice, is a more scientific approach. Especially for new construction of the house is more applicable. That surface layer of flexible waterproofing layer on the true settlement of new buildings (the rigid waterproofing layer has the possibility of cracking,) and new waterproofing materials.
Currently used: propionic acid (flexible, highly elastic) waterproofing materials, powder or paste two. Performance is the same. Construction is simple. Building materials supermarkets are available.
Water glass can be used in what
Sodium silicate, sodium potassium silicate commonly known as water glass (effervescent alkali), colorless or slightly colored, transparent or translucent thick liquid, can dissolve in water, acid decomposition, its anhydrous material is an amorphous glassy substance, odorless, tasteless, non-flammable and non-explosive, is alkaline.
The former is produced according to GB4209 standard, and is mainly used as adhesive for packaging materials, raw material for cleaning agents, raw material for refractory materials and casting industry, raw material for manufacturing chemical products, quick-setting agent for concrete, and also used in anti-acid corrosion engineering.
The latter organizes production according to JB274 standard. It is mainly used in electrode industry and building materials industry. Potassium carbonate is monoclinic crystals, white powdery, fine granular crystals or rounded small balls. Its melting point is 891 ℃, soluble in water, insoluble in acetic acid alcohol and ether, has a strong moisture absorption, easy to agglomerate, is the raw material for the production of factory electronic tubes, television tubes, computer monitors glass shell. It can also be used in the production of ink, cable, photographic, pharmaceutical, polyester, explosives, tanning, ceramics, building materials, crystal and medicine.
What are the uses of water glass?
Sodium silicate, sodium potassium silicate commonly known as water glass (effervescent alkali), colorless or slightly colored, transparent or translucent thick liquid, soluble in water, acid decomposition, its anhydrous material is an amorphous glassy substance, odorless, tasteless, non-combustible and non-explosive, is alkaline.
The former is produced according to GB4209 standard, and is mainly used as adhesive for packaging materials, raw material for cleaning agents, raw material for refractory materials and casting industry, raw material for manufacturing chemical products, quick-setting agent for concrete, and also used in anti-acid corrosion engineering.
The latter organizes production according to JB274 standard. It is mainly used in electrode industry and building materials industry. Potassium carbonate is monoclinic crystals, white powdery, fine granular crystals or rounded small balls. Its melting point is 891 ℃, soluble in water, insoluble in acetic acid alcohol and ether, has a strong moisture absorption, easy to agglomerate, is the raw material for the production of factory electronic tubes, television tubes, computer monitors glass shell. It can also be used in the production of ink, cable, photographic, pharmaceutical, polyester, explosives, tanning, ceramics, building materials, crystal and medicine.