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Manganous Dihydrogen Phosphate
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Manganous Dihydrogen Phosphate is an inorganic manganese compound with the formula Mn(H₂PO₄)₂. It is typically encountered as a hydrated crystalline solid that is soluble in water. This compound serves as a valuable source of manganese and phosphorus in agricultural and industrial applications. It is primarily used as a micronutrient fertilizer component, an additive in animal feed, and a reagent in chemical syntheses. Its high solubility makes it effective for foliar sprays and soil applications to correct manganese deficiencies in crops.
Description
Manganous Dihydrogen Phosphate
Primary Uses
- Agriculture and Fertilizer Industry
- Micronutrient Fertilizer: Supplies manganese and phosphorus essential for plant growth, enhancing photosynthesis, enzyme activation, and energy transfer.
- Foliar and Soil Application: Used in foliar sprays or soil amendments to correct manganese deficiency in a wide range of crops including cereals, fruits, and vegetables.
- Component in Blended Fertilizers: Incorporated into complex NPK blends to provide balanced micronutrient nutrition.
- Animal Feed Industry
- Feed Additive: Provides manganese supplementation for livestock and poultry to support metabolic functions, bone development, and reproductive health.
- Premix Ingredient: Used in vitamin-mineral premixes for improved bioavailability of manganese.
- Chemical and Industrial Applications
- Reagent in Chemical Synthesis: Utilized in laboratories and industry for synthesizing manganese-containing compounds.
- Electroplating and Coatings: Employed in some specialized plating and coating formulations involving manganese.
Secondary Uses
- Water Treatment
- Occasionally used as a micronutrient supplement in water treatment processes where manganese levels are deficient.
- Pharmaceutical and Nutraceutical Industry
- Utilized in trace amounts in supplements and formulations requiring manganese and phosphate.
- Research and Laboratory Use
- Used as a standard reagent or reference material in analytical chemistry and material science research.
KEY PRODUCT FEATURES
1. Basic Identification Attributes
- Chemical Name (IUPAC): Manganese(II) dihydrogen phosphate
- Common/Trade Name: Manganous Dihydrogen Phosphate
- CAS Number: 13446-38-7
- HS Code: 2835.39.90
- Synonyms: Manganese dihydrogen phosphate; Mn(H₂PO₄)₂; Manganese phosphate monobasic
2. Physical & Chemical Properties
- Physical State: Crystalline solid
- Color & Odor: Pale pink to light purple; odorless
- Molecular Formula: Mn(H₂PO₄)₂
- Molecular Weight: Approximately 178.91 g/mol (anhydrous)
- Solubility: Highly soluble in water
- Density: ~2.4 g/cm³ (varies with hydration)
- Melting Point: Decomposes before melting
- pH (5% solution): Acidic, typically 2.5 – 3.5
- Stability: Stable under normal storage conditions
3. Safety & Hazard Attributes
- GHS Classification:
- Eye irritation (Category 2A)
- Skin irritation (Category 2)
- Harmful if swallowed (Category 4)
- Toxicity:
- May cause irritation to eyes, skin, and respiratory tract
- Harmful if ingested in large quantities
- Exposure Limits:
- No specific occupational exposure limits, standard dust precautions recommended
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, well-ventilated area away from moisture
- Container Type:
- Packed in sealed plastic or fiber drums or bags with moisture barriers
- Shelf Life:
- 2 years when stored properly
- Handling Precautions:
- Avoid dust generation
- Use appropriate PPE such as gloves, goggles, and dust masks
5. Regulatory & Compliance Attributes
- Compliance:
- Meets agricultural and feed additive regulations where applicable
- Registered under relevant chemical safety guidelines (e.g., REACH)
- Labeling Requirements:
- Must include hazard statements regarding irritation and ingestion risks
6. Environmental & Health Impact
- Biodegradability: Not applicable (inorganic compound)
- Ecotoxicity: Low to moderate; avoid release in high concentrations to aquatic systems
- Bioaccumulation: Not expected to bioaccumulate
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE Required:
- Dust mask or respirator
- Protective gloves and goggles
- Handling Guidelines:
- Minimize dust exposure
- Work in well-ventilated areas
- Storage Measures:
- Keep containers tightly closed and dry
- Store away from incompatible materials like strong bases or oxidizers
First Aid Measures
- Inhalation: Move affected person to fresh air; seek medical attention if symptoms persist
- Skin Contact: Wash with soap and water; seek medical advice if irritation occurs
- Eye Contact: Rinse thoroughly with water for 15 minutes; consult a physician if irritation persists
- Ingestion: Rinse mouth; do not induce vomiting; seek immediate medical assistance
Firefighting Measures
- Fire Hazards: Non-flammable
- Extinguishing Media: Use water spray, foam, or dry chemical extinguishers for surrounding fires
- Special Precautions: Avoid inhalation of dust or decomposition products
- Hazardous Combustion Products: May release phosphorus oxides and manganese oxides upon decomposition at high temperatures
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