Source lei tell you | how to distinguish between quartz stone, quartz sand and silica powder?

Release time:

2024-01-29 09:37


source lei tell you | how to distinguish between quartz stone, quartz sand and silica powder?


Quartz stone, quartz sand, silica powder is mainly composed of silica, what is the difference between the three? What is their respective role?

Quartz StoneIs a kind of no radioactive pollution, reusable environmental protection, green new building materials. It is based on unsaturated polyester resin (UPR) or methacrylic acid resin (PMMA) organic polymer material as the matrix, quartz powder, particles and other fillers, adding pigments and other auxiliaries, after vacuum high pressure molding polymer composite materials. Quartz is a stable mineral at room temperature, insoluble in water and sulfuric acid, hydrochloric acid, nitric acid. Hardness 7, specific gravity about 2.65, melting point 1713 ℃. The luster is glassy and sometimes fatty. The pure texture is colorless; those containing impurities are red, yellow, blue, black, brown, purple, and green; transparent to opaque, brittle. The fracture is shell-like or zigzagged. The crystal is hexagonal columnar, and the columnar surface is striated. There is a difference between left crystal and right crystal. Twin crystals are common. Usually in clusters or granular, massive aggregates.


Quartz Stone


Quartz ore from the mine after processing, the general particle size in 120 mesh sieve under the product said.Quartz sand. The product that passes the 120 mesh sieve is called quartz powder. Quartz sand is a hard, wear-resistant and chemically stable silicate mineral. Its main mineral composition is SiO2. Its color is milky white or colorless and translucent, with hardness of 7, brittle and undissociated, shell-shaped fracture, grease luster, density of 2.65 and bulk density (1.6 for 1-20 mesh and 1.5 for 20-200 mesh). Its chemical, thermal and mechanical properties have obvious anisotropy, insoluble in acid, slightly soluble in KOH solution, melting point 1750 ℃. Quartz sand is mainly used as raw materials for water purification materials, glass manufacturing materials, casting additives and fluxes, ceramic blank and glaze and refractory materials, smelting ferrosilicon, metallurgical flux, casting molding sand, abrasive materials (sandblasting, hard grinding paper, sandpaper, emery cloth, etc.), metallurgy, building materials, silicon compounds and water glass, amorphous silica micropowder, improving the wear resistance of plastics, rubber, abrasives, etc.


Quartz sand


Quartz powder is also calledsilicon powder. Silicon powder is made of natural quartz (SiO2) or fused quartz (natural quartz by high temperature melting, cooling after amorphous SiO2) by crushing, ball milling (or vibration, air flow grinding), flotation, pickling purification, high purity water treatment and other multi-channel processing of micro powder. Silicon powder is a non-toxic, tasteless, non-polluting inorganic non-metallic material. Because of its good temperature resistance, acid and alkali corrosion resistance, poor thermal conductivity, high insulation, low expansion, stable chemical properties, high hardness and other excellent properties, it is widely used in chemical industry, electronics, integrated circuits (IC), electrical appliances, plastics, coatings, advanced paints, rubber, national defense and other fields.



silicon powder


Although the main components of quartz stone, quartz sand, and silica powder are the same, the main application areas of these three are still different. When using, you should choose the corresponding products according to your needs.







Silica powder, quartz sand, quartz stone, quartz, one, raw material, difference, soluble, product

Yuan Lei's Little Knowledge | Performance Requirements and Types of Fillers for Coatings


Fillers in coatings are usually white or slightly colored pigments with a refractive index less than 1.7. It has the basic physical and chemical properties of pigments used in coatings, but due to its refractive index being similar to the film-forming material, it is transparent in coatings and does not have the coloring and covering power of coloring pigments. It is an indispensable pigment in coatings.

Yuan Lei's Little Knowledge | Application Effects of Different Mineral Powder Materials in Coatings


In architectural coatings, commonly used mineral materials include barium sulfate, calcium carbonate, kaolin, mica powder, talc powder, quartz powder, silica micro powder, transparent powder, glass powder, wollastonite powder, etc. Reasonable application of various mineral materials can effectively improve or enhance the performance of coatings. Let's take a look at the application of different mineral materials in coatings.

Yuan Lei's Little Knowledge | Characteristics of Mineral Materials


Mineral materials refer to the material products obtained by processing and transforming natural minerals (mainly non-metallic minerals) or rocks as the main raw materials, or minerals or rocks that can be directly used as materials and aim to utilize their main physical and chemical properties. This meaning mainly includes the following four aspects: first, natural minerals and rocks that can be directly utilized or processed to be utilized; Secondly, finished or semi-finished materials made mainly from natural non-metallic minerals and rocks through physical and chemical reactions; Thirdly, artificially synthesized minerals or rocks; Fourthly, the direct utilization targets of these materials are mainly their own physical or chemical properties, not limited to individual chemical elements.