Column silica gel plate
TLC Silica Gel Powder
Colored Indicating Silica Gel
Sodium silicate
Column silica gel plate
English name：Column silica gel plate
Molecular formula：Si02·nH20
Implementation standard：HG/T2354-2010
Characteristics: This product is made by blending high-quality thin-layer chromatography silica gel with an appropriate binder and coating it onto a glass substrate to form a white, uniform thin plate. The surface is smooth, the coating is dense without peeling, and there are no impurity spots or cracks. It is brittle and has slight moisture absorption. It is neutral, insoluble in water and common organic solvents, and exhibits strong polar adsorption. This product has specified pore volume, specific surface area, and pore distribution.
Purpose
It can be directly used for the rapid separation and qualitative or quantitative analysis of various types of organic substances. It is widely applied in the fields of pharmaceutical and chemical engineering, natural products, fine chemicals, as well as the identification of trace impurities and major components in food and foodstuffs.
Type
Classified by purpose: Type G, Type GF254, Type H, Type HF254.
Feature
1. Good separation effect and high number of trays.
2. The sample spots are small, facilitating serial analysis.
3. Short separation time.
4. High sensitivity, clear spots, and no diffusion
Deadline
The column chromatography silica gel plate (for preparative/column chromatography purposes) has a shelf life of 12 months when unopened and stored under standard conditions.
Storage and Transportation Conditions
Store in a dry, cool, and dark place (10~30℃, RH≤60%). Do not store together with volatile substances. Keep away from acids, alkalis, and organic solvents. Use as soon as possible after opening. After use, the remaining column silica gel plate should be resealed within 24 hours and a new desiccant should be added to the sealed package. Silica gel plates that have been stored for a long time or have absorbed moisture can be used after being activated by baking at 60-90℃ for 1-2 hours.
TLC Silica Gel Powder
English name：TLC Silica Gel Powder
Molecular formula：xSi02.yH20
Implementation standard：HG/T2354-2010
Molecular weight of silicon dioxide：60.08
Particle size: 40-60 mesh (250-425μm), 60-100 mesh (150-250μm), 60-80 mesh (180-250μm), 80-100 mesh (150-180μm), 100-120 mesh (125-150μm), 100-200 mesh (75-150μm), 200-300 mesh (50-75μm), 300-400 mesh (38-50μm)
Characteristics: This product is a white, uniform, loose powder or irregular granules, with no visible impurities, caking, or black spots. It is non-toxic and odorless, and does not feel coarse when rubbed between fingers. The main ingredient is silicon dioxide, which is characterized by high purity, safety, and hygiene. Due to its different adsorption and retention times for different substance components, it can achieve the purpose of separating and purifying different mixed components.
Purpose
Primarily focusing on adsorption separation and purification, it relies on its porous structure and uniform adsorption properties. As the core packing material for column chromatography, it is widely used in sample separation, purification, and refinement in fields such as organic synthesis, medicine, chemical engineering, food, and environmental protection.
· Laboratory/Scientific Research: Separation and purification of organic compounds and natural products, as well as qualitative and quantitative pretreatment of samples.
· Pharmaceutical field: High-purity extraction and refining of active pharmaceutical ingredients (APIs), intermediates, and effective components of traditional Chinese medicine.
· Chemical industry: separation and purification of fine chemical raw materials, synthetic fragrances, and dyes, as well as removal of impurities.
· Food industry: purification and refinement of food additives, natural pigments, and essences to ensure purity.
· Environmental protection/quality inspection: Separation, enrichment, and pretreatment for the detection of trace impurities in environmental samples, food, and pharmaceuticals.
Store
Store the sealed product in a cool, dry, and well-ventilated place. Do not store it together with volatile substances. Avoid direct sunlight and high-temperature, high-humidity environments. Protect it from moisture and light. Keep it away from acids and alkalis. Once opened, reseal it to prevent affecting its separation performance.
Colored Indicating Silica Gel
English name：Colored Indicating Silica Gel
Molecular formula：xSi02. yH20
Implementation standard：HG/T2765.4-2005
Characteristics: It appears as uniform glassy spherical or irregular block particles, with a smooth surface and hard texture. There is no pulverization, agglomeration, or obvious impurities, and the particle size is regular. In its dry state, it is a uniform deep blue color, without any mixed colors or color spots, and has good light transmittance. It belongs to the typical appearance of the blue series in color-changing silica gel. It has the characteristic of continuous color gradient after absorbing moisture.
Purpose
Color-changing silica gel combines moisture absorption and drying with humidity visualization and indication functions, and is renewable and reusable. It is widely used in industrial fields such as precision electronics, instrumentation, hardware and auto parts, chemical rubber and plastics, textiles and leather for moisture prevention, oxidation prevention, rust prevention, and agglomeration prevention during storage, shipping, and manufacturing processes; in food, pharmaceutical, and daily chemical fields (special cobalt-free type) for moisture prevention, preservation, mold prevention, and deterioration prevention; and also suitable for sealing environment humidity indication and drying of high-end precision devices in aerospace, military, and other fields, as well as moisture prevention, mold prevention, and oxidation prevention of valuable items, equipment, and furniture in home, office, and car-mounted scenarios.
Specifications
1-3mm、2-5mm、4-8mm。
Packaging
500g plastic bottle or 25kg composite bag.
Remark
Packaging and specifications can be customized according to customer needs.
Sodium silicate
English name：Sodium silicate
Molecular formula：Na2·Si03
Implementation standard：GB/T4209-2022
Characteristics: The aqueous solution is alkaline; it can hydrolyze and precipitate silicon dioxide when heated or at room temperature, whether in the presence of strong acids, weak acids, or even electrolytes.
Purpose
We manufacture various silicate products such as silica gel, white carbon black, zeolite molecular sieves, silica sol, and more.
1. Foundry industry: sand mold and sand core binders, with high strength and good collapsibility, are widely used in casting, grinding wheel manufacturing, and as metal preservatives.
2. Construction engineering: foundation reinforcement, leak stopping, grouting, waterproofing and corrosion prevention, accelerating admixtures, used for manufacturing quick-setting cement, acid-resistant cement waterproofing oil, ceramic raw materials, refractory materials, waterproofing, leak stopping, wood fireproofing, etc.
3. Laundry and household chemicals: washing powder, detergent, soap auxiliaries, oil removal, water softening, used for dyeing assistance, bleaching, and sizing.
4. Anti-corrosion and acid resistance: acid-resistant mastic, anti-corrosion coating, acid-resistant mortar/concrete ingredients.
5. Paper making/textile: paper filler, sizing agent, printing and dyeing fixing, and pulp.
6. Mineral processing/food: Slurry dispersant, flotation agent, wastewater flocculation and sedimentation, used as silica-alumina catalyst for petroleum catalytic cracking, mineral processing, food preservation, and adhesive in the production of corrugated paper, building materials, and welding electrodes.
7. Paper box/Agriculture: Used as adhesive for paperboard, paper boxes, and paper tubes; in agriculture, it can be used to manufacture silicon fertilizers and soil stabilizers.
8. Silica gel and white carbon black raw materials: the basic raw materials for producing precipitated silica and silica gel.
Deadline
Unopened, well-sealed, and stored in compliance with regulations, it can be kept for 6-12 months. If opened, it is recommended to use it up within 1 month to avoid moisture absorption, stratification, and deterioration.
Packaging
Sealed packaging with clean iron drums, plastic drums, or tank trucks shall be adopted. Container damage shall be avoided during transportation.
