Zibo Congyuan Industry And Trade Co., Ltd.

Material: high carbon spring steel, spring steel, stainless steel, alloy steel Compression Spring, Extension Spring : Wire Diameter: 0.2-40.0mm Torsion spring wire diameter :0.2-35mm Surface Finish: black , Zinc, Nickel, silver, golden, tin, powder coating, shot pin Applications: Automotive, medical device, agricultural machinery ,electronics, toy, electric power distribution. Extension spring hook include Germany hook, British hook, Side hook We can customize special design of springs based on your requirement.

Magnesium sulfate, often referred to as Epsom salt, is a chemical compound that consists of magnesium, sulfur, and oxygen. Its chemical formula is MgSO4. It is named after the town of Epsom in Surrey, England, where the compound was first discovered in natural springs. Magnesium sulfate can be found in hydrated form with different numbers of water molecules attached to its structure. The most common forms include: Magnesium sulfate heptahydrate (MgSO4�·7H2O): This is the most well-known form, often sold as Epsom salt. It is a white, crystalline substance with seven water molecules per magnesium sulfate molecule. Magnesium sulfate monohydrate (MgSO4�·H2O): This form has one water molecule per magnesium sulfate molecule. Magnesium sulfate has various uses: Medical Applications: It is used in medicine, particularly in obstetrics, to prevent seizures in pregnant women with conditions like pre-eclampsia or eclampsia. It can also be used to treat magnesium deficiency. Agricultural Use: It is sometimes used as a fertilizer in agriculture to provide magnesium and sulfur to plants. Epsom Salt Baths: People often use magnesium sulfate in the form of Epsom salt in baths for relaxation and to soothe sore muscles. However, the scientific evidence supporting the absorption of magnesium through the skin in this context is limited. Industrial Processes: It is employed in various industrial processes, including the production of textiles, paper, and as a drying agent in some commercial products. Itâ??s important to note that while magnesium sulfate can have beneficial uses, it should be used with caution, especially in medical applications, and under the guidance of healthcare professionals, as excessive intake can lead to adverse effects.

Chemical name:Magnesium nitrate Molecular formula:Mg(NO3)2.6H2O Molecular weight:256.40 Property:soluble in water,liquid ammonia, methanol and ethanol.Stable at room temperature, the relative density of 1.461, higher than the melting point of 95�°C off the water to generate alkaline magnesium nitrate, heated to 300�°C begins to decompose above 400�°C to completely decompose into magnesium oxide and Nitrogen oxide gas. Quality standard: Item Indicator Industrial grade Agriculture grade Magnesium nitrate (Mg(NO3)2.6H2O) â?¥98.0% â?¥98.0% PH value â?¥4 --- Heavy metal â?¤0.002 --- Water insoluble â?¤0.05% â?¤0.1% Iron â?¤0.001% --- Magnesium oxide content(CaO) --- â?¥15% Nitrogen content(N) --- â?¥10.7% Use:Concentrated nitric acid for industrial de-water agent, manufacture of explosives, catalysts and other magnesium salts and nitrates catalyst raw materials, wheat ashing agent.Used in agriculture, magnesium soluble fertilizer for soilless culture. Packing:25/50KGlined with plastic bag and exterior is woven bagPacking or according to customers requirements. 1.Purity 98% white granule 2.Used for fertilizer or industrial material 3.Export Asia/Europe 4.ISO9001

Appearance White granular, good fluidity Active Oxygen(O) 13.5% Iron(Fe)(%) 0.0015 % Moisture 2.0% Bulk Density g/l 700-1100 PH value (3%water solution 20) 10~~11

[Technical Indicators] 1. Industrial grade Indicator Name/Indicator Value Powdered Products (F) Needle Products (Z) Level 92 Level 93 Level 95 Level 92 Level 95 Appearance White or light yellow powder, without caking White or yellowish needle-like, without lumps Active matter,% 92.0 93.0 95.0 92.0 95.0 Free oil,% 1.2 1.2 1.2 2.0 1.5 Inorganic salt,% Sodium sulfate 5.8 4.8 2.5 4.8 2.5 Sodium chloride 0.15 0.15 0.15 0.15 0.15 Moisture,% 2.0 2.0 2.0 4.0 3.0 PH value (1% aqueous solution) 7.5-9.5 7.5-10 Whiteness (WB), 90 2. Toothpaste grade Indicator Name/Indicator Value Toothpaste Grade (Y) (I) Level (II) Level (III) Level Appearance White or yellowish powdery or needle-like, without caking Active matter,% 95.0 93.0 93.0 Free oil,% 1.2 1.2 1.2 Inorganic salt,% Sodium sulfate 2.5 3.2 4.0 Sodium chloride 0.15 0.15 0.15 Moisture,% 2.0 2.0 3.0 PH value (1% aqueous solution) 8-9.3 8-9.3 8-10 Whiteness (WB), 90 Foaming capacity/mm 180 Heavy metal (as Pb)/ (mg/Kg), 15 Arsenic content (as As)/ (mg/Kg), 3 Total bacterial count/ (CFU/G), 100 Total number of molds and yeasts/ (CFU/G), 100 Fecal coliforms/G Not to be detected Pseudomonas aeruginosa/G Not to be detected Staphylococcus aureus/G Not to be detected   3. Latex grade Indicator Name/Indicator Value Latex grade (powder, needle, liquid) Aggregate grade Seed level Liquid K12 Appearance White or yellowish powdery or needle-like, without caking Light yellow transparent liquid Active matter,% 94.0 92 28.5-30.5 Free oil,% 0.8-1.0 1.5-2.0 1.5 Inorganic salt,% Sodium sulfate 3.0 3.0 1.5 Sodium chloride 0.15 0.15 0.05 Moisture,% 3.5 3.5 - PH value (1% aqueous solution) 8-10 7.5-9.5 Whiteness (WB), 90 - Color Klett (30% active), - 60 4. Reagent grade Indicator Name/Indicator Value Reagent grade Level 99% Level 97% Appearance White flaky crystals White powder Solubility (1%, alcohol) Completely dissolved Solubility (10%, aqueous solution) Completely dissolved Chroma APHA (20%, deionized water), 15   - Active matter (%), â?¥ 99 (on dry basis) 97 Petroleum ether soluble matter (%), 0.2 1.0 Sodium sulfate (%), 0.5 1.5 Sodium chloride (%), Moisture (%), 1.0 2.0 PH value (1% aqueous solution) 6.0-8.0 6.0-11 Phosphate, 1ppm - Lead (Pb), 2ppm Iron (Fe), 1ppm Nitrogen, 5ppm - Arsenic (As), 0.1ppm Fraction content (%), 99.0 Absorbance (3%, deionized water) 230nm 0.4 260nm 0.1 280nm 0.1 - 410nm 0.01