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Trace Elements
Ammonium heptamolybdate is a colorless or pale yellow-green columnar crystal. It dissolves in 2.3 parts of water and is insoluble in ethanol. It decomposes upon contact with acid. When heated to 90℃, it loses one molecule of crystalline water. It decomposes when heated to 190℃. The relative density is 2.498.
Boric acid is visually identifiable as a white odorless solid. However, as visual identification is often the least accurate in identifying a substance with accuracy, boric acid is usually identified by its solubility in water and 185℃ melting point using a combination of solute separation techniques and fractional distillation. Boric acid will degrade through dehydration into metaboric acid and tetraboric acid at 171℃ and 300℃, respectively. The density is 1.435g/mL. Its melting point is 185℃.
Calcium chloride anhydrate is a white or almost white solid, available in granular form. It is highly hygroscopic and readily absorbs moisture from the air. Calcium chloride anhydrous (CaCl₂) is a versatile compound with several important applications in agriculture
Calcium chloride dihydrate has a bitter and astringent taste and is highly hygroscopic. Its relative density is 1.835. It is soluble in water, and its aqueous solution is neutral or slightly alkaline and corrosive. It dissolves in alcohols but does not dissolve in ethers. When heated to 260℃, it loses water to form an anhydrous substance. Its other chemical properties are similar to those of anhydrous calcium chloride.
Copper sulfate is blue and odorless. It gives off moisture when exposed to air. Copper sulfate is classified for shipping purposes as a hazardous substance or hazardous waste. It may pose unreasonable risk to health, safety, or property, when transported. Copper sulfate is highly corrosive to plain steel, iron and galvanized pipes. The density is 2.286g/cm3. Its melting point is 110℃ and boiling point is 330℃.
Disodium Octaborate tetrahydrate
Appearance: white crystal powder
Insoluble matters in water: 0.05% max
Solubility: Soluble easily in cold water
pH(1:250):6-9
Ferrous sulphate monohydrate big granular
Ferrous sulphate monohydrate is easily soluble in water. It is being dried or treated with anti-caking to ensure stability and free-flowing properties. Its melting point is 64℃, and boiling point is 330°C at 760 mmHg. Solubility: 1g/1.5ml at 25℃ water or 1g/0.5ml at 100℃ water, insoluble in alcohol.
Ferrous sulphate monohydrate middle granular
Ferrous sulphate monohydrate is easily soluble in water. It is being dried or treated with anti-caking to ensure stability and free-flowing properties. Its melting point is 64℃, and boiling point is 330°C at 760 mmHg. Solubility: 1g/1.5ml at 25℃ water or 1g/0.5ml at 100℃ water, insoluble in alcohol.
Ferrous sulphate monohydrate powder
Ferrous sulphate monohydrate is easily soluble in water. It is being dried or treated with anti-caking to ensure stability and free-flowing properties. Its melting point is 64℃, and boiling point is 330°C at 760 mmHg. Solubility: 1g/1.5ml at 25℃ water or 1g/0.5ml at 100℃ water, insoluble in alcohol.
Magnesium sulphate anhydrate form is hygroscopic, salty, cool and a little bitter; hygroscopic, melting point: 1127℃ (degradation), refractive index: 1.56. soluble in water, alcohol, ethyl ether and glycerol, insoluble in acetone. The density is 2.66g/cm3. It is soluble in water, alcohol and glycerol.
Magnesium sulphate heptahydrate
Magnesium sulphate heptahydrate do many benefits to crops. Magnesium sulphate has good water solubility, and can be absorbed by the crop easily, also it will soon make the folium return green, and reinforce the ability of photosynthesis. The density is 1.68 g/cm3. Its melting point is 1124℃. It is soluble in water，slight soluble in alcohol and diethyl ether, insoluble in acetone.
Magnesium Sulphate Monohydrate
In gardening and other agriculture, magnesium sulfate is used to correct a magnesium or sulfur deficiency in soil; magnesium is an essential element in the chlorophyll molecule, and sulfur is another important micronutrient. It is most commonly applied to potted plants, or to magnesium-hungry crops, such as potatoes, roses, tomatoes, lemon trees, carrots, and peppers. The advantage of magnesium sulfate over other magnesium soil amendments (such as dolomitic lime) is its high solubility, which also allows the option of foliar feeding. Solutions of magnesium sulfate are also nearly neutral, compared with alkaline salts of magnesium as found in limestone; therefore, the use of magnesium sulfate as a magnesium source for soil does not significantly change the soil pH.
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