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Pure talc powder, molecular formula 3MgO.4O2Si.H2O, CAS 14807-96-6, is an industrial product of the talc group of magnesium silicate minerals. Its main component is hydrated magnesium silicate, which is crushed, treated with hydrochloric acid, washed with water, and dried. It has excellent physical properties such as lubricity, fire resistance, acid resistance, insulation, high melting point, chemical inertness, good covering power, softness, good luster, and strong adsorption force. Commonly used as fillers for plastic and paper products, rubber fillers and anti sticking agents for rubber products, advanced paint coatings, etc. Used for manufacturing electrical ceramics, wireless electrical ceramics, various industrial ceramics, architectural ceramics, daily-use ceramics, and ceramic glazes. Features: No discoloration at high temperatures, increased whiteness after calcination, uniform density, good glossiness, and smooth surface.
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Chemical Formula |
C16H9N2Na3O7S2 |
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Exact Mass |
474 |
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Molecular Weight |
474 |
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m/z |
474 (100.0%), 475 (17.3%), 476 (9.0%), 475 (1.6%), 477 (1.6%), 476 (1.4%), 476 (1.4%) |
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Elemental Analysis |
C, 40.51; H, 1.91; N, 5.91; Na, 14.54; O, 23.61; S, 13.52 |
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Pure talc powder is a natural mineral powder mainly composed of hydrated magnesium silicate, processed through processes such as crushing and purification. Its unique layered structure endows it with lubricity, fire resistance, acid resistance, and strong adsorption ability, while its delicate texture and chemical stability make it irreplaceable in multiple fields.
1. Plastic and rubber industry: key role in performance improvement
Talc powder, as a reinforcing filler, can significantly improve the physical properties of plastics and rubber. In plastics, its layered structure can improve the rigidity, creep resistance, and surface gloss of the material, while reducing the coefficient of friction. For example, adding talc powder to polypropylene can increase surface hardness by more than 20% and reduce molding shrinkage. In the rubber industry, talc powder can replace some carbon black, enhance heat resistance, and reduce the impact of climate on rubber properties. It is widely used in fields such as automotive tires, sealing strips, and industrial hoses.
2. Coatings and paints industry: guardians of stability
Talc powder, as a filler, can enhance the uniformity, adhesion, and weathering resistance of coatings. Its layered structure can prevent pigment precipitation, regulate glossiness, and enhance the wear resistance of the coating.
In polyurethane waterproof coatings, talcum powder can reduce curing shrinkage, improve adhesion, and reduce costs. In addition, its chemical inertness makes it an ideal choice for environmentally friendly coatings.
3. Paper Industry: Balancing Quality and Cost
Talc powder can improve the glossiness, smoothness, and opacity of paper, while increasing filler retention and reducing raw material consumption. In the production of copperplate paper, the addition of talcum powder can increase the paper's ink absorption by 15% and result in clearer printing effects. Its low wear characteristics can also extend the lifespan of papermaking equipment and reduce maintenance costs.
4. Ceramic and glass industry: creators of aesthetics and performance
Talc powder can lower the firing temperature of ceramics, improve product hardness and glossiness.
By adjusting the proportion of talc powder, ceramics can achieve diverse expressions from white to color. In the manufacturing of electric ceramics, the addition of talc powder can enhance insulation performance and ensure safety in high-voltage environments. In addition, its high temperature stability makes it an important component of refractory materials.
5. Fireproof materials: builders of safety barriers
Talc powder has excellent fire resistance and thermal insulation, which can significantly improve the flame retardant level of materials. In fireproof coatings, the layered structure of talc powder can block oxygen and heat transfer, delaying the spread of fire. When used in combination with flame retardants such as aluminum hydroxide, it can achieve V-0 flame retardant standards and is widely used in the construction, electronics, and automotive industries.
Medical field: integration of traditional wisdom and modern science
1. Diuretic and gonococcal: a natural solution for damp heat diseases
Talc powder is cold in nature and belongs to the bladder and stomach meridians. It has the effects of clearing heat, relieving summer heat, diuresis, and promoting diuresis. The magnesium silicate component it contains can promote urine production, alleviate symptoms such as urethral burning, frequent urination, and urgency. Clinically, it is commonly used to treat urinary tract infections, cystitis, and diarrhea caused by heat and dampness. The single dose is 3-10 grams, taken orally or in pill form.
2. Skin care: gentle therapy for eczema and prickly heat
The hygroscopicity and astringency of talcum powder make it a natural choice for skin care. It can adsorb excess oil and sweat, reduce friction and irritation, and alleviate skin itching symptoms such as eczema and prickly heat.
When applied topically, talcum powder is combined with licorice, alum, and other ingredients to form a powder that can be applied to the affected area with significant therapeutic effects and minimal side effects.
3. Wound healing: modern application of traditional muscle building agents
Talc powder has the effect of promoting wound healing, and its layered structure can adsorb exudate, reducing the risk of infection. Clinical studies have shown that the combination of talcum powder and external application of Vaseline can shorten the healing time of burn wounds by 30% and reduce scar formation rate by 20%. In addition, it can also be used for the care of chronic wounds such as bedsores and ulcers.
4. Thoracic treatment: palliative therapy for malignant effusion
Pure talc powder pleural fixation is an effective method for treating malignant pleural effusion. By injecting talc particles into the chest cavity, pleural inflammation can be triggered, promoting adhesion between the visceral and parietal pleura, thereby reducing the recurrence of fluid accumulation. The method is simple and inexpensive, and is suitable for palliative treatment of advanced lung cancer, breast cancer and other patients.
Cosmetics field: dual guarantee of beauty and safety
1. Facial Makeup: The Secret Weapon for Long lasting Makeup
Talc powder is the core ingredient of foundation make-up, loose powder and other products. Its delicate texture can fill pores, absorb grease and extend makeup durability. By adjusting the particle size of talc powder (usually 5-20 microns), different makeup effects can be achieved from matte to natural. In addition, the silicon element it contains can enhance the stability of sunscreen and increase the SPF value.
2. Body care: a refreshing and comfortable daily companion
Talc powder is widely used in talcum powder and prickly heat powder. It can absorb sweat, reduce skin friction, and prevent heat rash and diaper rash.
In baby products, talcum powder needs to undergo high-temperature sterilization treatment to ensure sterility and safety. Adult products are often compounded with ingredients such as menthol and zinc oxide to enhance their cooling and anti itch effects.
3. Sunscreen and anti infrared: innovative breakthroughs in functionality
The silicon element in talcum powder can block infrared radiation and reduce heat damage to the skin. Research has shown that adding 5% talc powder to sunscreen can increase its infrared blocking rate by 15%, making it suitable for high-intensity outdoor sports scenes. In addition, it can also serve as a carrier for physical sunscreen agents, improving product uniformity and stability.
Food industry: Balancing safety and functionality
1. Anti caking agents and release agents: Enhancers of processing efficiency
Talc powder is mainly used in the food industry to prevent powdered food from clumping, such as sugar powder, milk powder, etc. Its chemical inertness ensures that it will not react with food ingredients and is easy to clean. In candy manufacturing, talc powder coating can reduce adhesion and improve production efficiency. Adding 0.2% -0.5% talc powder to flour can improve fluidity and prevent clumping during storage.
2. Dietary supplements: natural sources of trace elements
Containing trace elements such as magnesium and silicon, it can be used as a raw material for dietary supplements. Its bioavailability is high and it is easy for the human body to absorb. Research has shown that daily intake of 500 milligrams of talcum powder can meet 10% of adults' magnesium needs and help maintain bone health and neurological function.
1. Soil Improvement: Optimizer of Structure and Fertility
It can improve soil permeability, increase porosity, and promote root growth. In the improvement of saline alkali land, it can replace sodium ions in the soil, reduce pH value, and improve crop adaptability. Experiments have shown that adding 2% talc powder to soil can increase corn yield by 15% and significantly reduce the incidence of pests and diseases.
2. Plant Protection: Potential Stocks of Natural Insecticides
It can interfere with the respiratory system of pests through physical action to achieve killing effect. Its control effect on common pests such as aphids and spider mites is over 70%, and there is no risk of pesticide residue. In addition, talc powder can also be used as a pesticide carrier to improve the adhesion and utilization of active ingredients.
Type of pure talc powder:
Chemical grade:
Use: used in rubber, plastic, paint and other chemical industries as a reinforcing and modifying filler. Features: increase the stability of the product shape, increase the tensile strength, shear strength, flexural strength, pressure strength, reduce the deformation, elongation, thermal expansion coefficient, high whiteness, strong particle size uniformity and dispersion.
Ceramic grade:
Purpose: Used for manufacturing high-frequency ceramics, radio ceramics, various industrial ceramics, architectural ceramics, daily ceramics and ceramic glaze. Features: no discoloration at high temperature, enhanced whiteness after calcination, uniform density, good gloss and smooth surface.
Cosmetic grade:
Purpose: It is a high-quality filling agent in the cosmetics industry. Features: It contains a large amount of silicon. It has the function of blocking infrared rays, thus enhancing the sunscreen and anti-infrared properties of cosmetics.
Pharmaceutical food grade:
Use: used as additive in medicine and food industry. Features: non-toxic, tasteless, high whiteness, good compatibility, strong glossiness, soft taste and strong smoothness. The PH value is 7-9, which will not degrade the characteristics of the original product.
Paper grade:
Purpose: It is used for various products of high and low grade paper industry. Features: Paper powder has the characteristics of high whiteness, stable particle size and low abrasion. The paper made with this powder can achieve smoothness, delicacy, save raw materials and improve the service life of the paper.
Brucite powder:
Purpose: Used for manufacturing electric porcelain, wireless electric porcelain, various industrial ceramics, architectural ceramics, daily ceramics and ceramic glaze. Features: no discoloration at high temperature, enhanced whiteness after calcination, uniform density, good gloss, and smooth surface.
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