Ammonium heptamolybdate is a chemical compound with the formula (NH4)6Mo7O24.4H2O. Here's a short description of its physical properties:
Appearance: Ammonium heptamolybdate typically appears as white or colorless crystalline solid. Odor: Generally odorless. Solubility: It is soluble in water and forms a clear solution. It is also soluble in ammonia. Density: The density of ammonium heptamolybdate can vary, but typically it is around 2.498 g/cm³. Melting Point: It decomposes before melting when heated. Stability: It is stable under normal conditions but may decompose upon exposure to high temperatures or under acidic conditions.
Colorless or pale yellow-green diamond-shaped crystals.
2. Density: Typically around 2.498 g/cm³ at 20°C.
3. Stability: Stable in air, but may lose some ammonia upon weathering.
4. Aqueous Solution:
Weakly acidic.
Solubility:
At 20°C: Approximately 300 g/L.
At 80-90°C: Approximately 500 g/L.
5. Thermal Properties:
Loss of water of crystallization occurs when heated to 90°C.
Decomposition into ammonia, water, and molybdenum trioxide at 170-190°C.
6. Solubility:
Highly soluble in water.
Soluble in acid and alkali.
Insoluble in ethanol.
7. Hygroscopicity:
Hygroscopic, readily absorbs moisture from the air.
8. Crystal Structure:
Crystallizes in the monoclinic crystal system.
9. Toxicity:
Maximum allowable concentration in air is 2 mg/m³.
Specification:
Mo Content: 54%
Impurities: Low levels of Si, Al, Fe, Cu, Mg, Ni, Mn, P, K+Na, Ca, Pb, and Sn.
Impurity
Maximum Allowable Level
Si (Silicon)
<0.0005%
Al (Aluminum)
<0.0004%
Fe (Iron)
<0.0005%
Cu (Copper)
<0.0003%
Mg (Magnesium)
<0.0003%
Ni (Nickel)
<0.0004%
Mn (Manganese)
<0.0003%
P (Phosphorus)
<0.0004%
K+Na (Potassium + Sodium)
≤0.015%
Ca (Calcium)
<0.0007%
Pb (Lead)
<0.0005%
Sn (Tin)
<0.0005%
Benefits:
Promotes absorption and conversion of nutrients in plants.
Enhances nodule growth and nitrogen fixation activity in legumes.
Stimulates thickening of leaves, protection of flowers and fruits, and improves pollination and fruit set.
Applications:
Seed dressing, soaking, and foliar spraying.
Seed fertilization by mixing with phosphate and potash in furrows or holes.
Packing and Storage:
Packaging: 25kg plastic woven bag.
Storage: Cool, dry warehouse; avoid hot and humid conditions. Do not use iron containers to prevent precipitation of molybdenum fertilizer.
If you are looking for Ammonium Heptamolybdate, look no further, Shaanxi Hengchang Molybdenum Industry Co., Ltd. Is a renowned supplier in China. Contact us today for information or order.
Product Description
Physical Properties of Ammonium Heptamolybdate
1. Appearance:
Typically appears as a white crystalline solid.
Colorless or pale yellow-green diamond-shaped crystals.
2. Density: Typically around 2.498 g/cm³ at 20°C.
3. Stability: Stable in air, but may lose some ammonia upon weathering.
4. Aqueous Solution:
Weakly acidic.
Solubility:
At 20°C: Approximately 300 g/L.
At 80-90°C: Approximately 500 g/L.
5. Thermal Properties:
Loss of water of crystallization occurs when heated to 90°C.
Decomposition into ammonia, water, and molybdenum trioxide at 170-190°C.
6. Solubility:
Highly soluble in water.
Soluble in acid and alkali.
Insoluble in ethanol.
7. Hygroscopicity:
Hygroscopic, readily absorbs moisture from the air.
8. Crystal Structure:
Crystallizes in the monoclinic crystal system.
9. Toxicity:
Maximum allowable concentration in air is 2 mg/m³.
Specification:
Mo Content: 54%
Impurities: Low levels of Si, Al, Fe, Cu, Mg, Ni, Mn, P, K+Na, Ca, Pb, and Sn.
Impurity
Maximum Allowable Level
Si (Silicon)
<0.0005%
Al (Aluminum)
<0.0004%
Fe (Iron)
<0.0005%
Cu (Copper)
<0.0003%
Mg (Magnesium)
<0.0003%
Ni (Nickel)
<0.0004%
Mn (Manganese)
<0.0003%
P (Phosphorus)
<0.0004%
K+Na (Potassium + Sodium)
≤0.015%
Ca (Calcium)
<0.0007%
Pb (Lead)
<0.0005%
Sn (Tin)
<0.0005%
Benefits:
Promotes absorption and conversion of nutrients in plants.
Enhances nodule growth and nitrogen fixation activity in legumes.
Stimulates thickening of leaves, protection of flowers and fruits, and improves pollination and fruit set.
Applications:
Seed dressing, soaking, and foliar spraying.
Seed fertilization by mixing with phosphate and potash in furrows or holes.
Packing and Storage:
Packaging: 25kg plastic woven bag.
Storage: Cool, dry warehouse; avoid hot and humid conditions. Do not use iron containers to prevent precipitation of molybdenum fertilizer.
If you are looking for Ammonium Heptamolybdate, look no further, Shaanxi Hengchang Molybdenum Industry Co., Ltd. Is a renowned supplier in China. Contact us today for information or order.
