Food Grade Ammonium Dihydrogen Phosphate/ NH4·H2PO4 CAS 7722-76-1 CAS NO.7722-76-1

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Food Grade Ammonium Dihydrogen Phosphate/ NH4·H2PO4 CAS 7722-76-1

 

Description:

• Chemical Formula: NH4H2PO4
• Molecular Weight: Approximately 115.03 g/mol
• Structure: Ammonium Dihydrogen Phosphate consists of ammonium ions (NH4+) and dihydrogen phosphate ions (H2PO4-). It is a white, crystalline powder that is highly soluble in water.

Specification:

• Purity: Ammonium Dihydrogen Phosphate is commercially available in various purity grades, typically ranging from 98% to higher levels. The specific purity may depend on the intended application and the manufacturer.
• Solubility: Ammonium Dihydrogen Phosphate is highly soluble in water and shows limited solubility in organic solvents.

Application:

1. Fertilizers: Ammonium Dihydrogen Phosphate is commonly used as a nitrogen and phosphorus source in fertilizers. Its high solubility in water allows for effective nutrient absorption by plants. It is suitable for various crops and can be used in both agricultural and horticultural applications.

2. Flame Retardants: Ammonium Dihydrogen Phosphate is employed as a flame retardant in certain materials and products. It releases ammonia and phosphoric acid when exposed to heat, which can help suppress the combustion process and reduce the spread of flames.

3. Food and Beverage Industry: Ammonium Dihydrogen Phosphate may be used as a food additive, primarily as a leavening agent in baked goods. It reacts with baking soda (sodium bicarbonate) to produce carbon dioxide, which helps dough rise and gives baked products their desired texture.

4. pH Buffer: Ammonium Dihydrogen Phosphate can function as a pH buffer or pH regulator in various applications. It helps maintain a desired pH level in solutions, particularly in laboratory settings, water treatment processes, and certain industrial processes.

Features:

• Solubility: Ammonium Dihydrogen Phosphate is highly soluble in water, allowing for easy incorporation into liquid-based formulations.

• Nutrient Source: As a fertilizer, Ammonium Dihydrogen Phosphate provides both nitrogen and phosphorus, essential nutrients for plant growth and development.

• pH Control: Ammonium Dihydrogen Phosphate can act as a pH buffer, helping to stabilize and maintain a specific pH level in a solution.

• Flame Retardant Properties: When exposed to heat or flames, Ammonium Dihydrogen Phosphate releases ammonia and phosphoric acid, which can help reduce the flammability of certain materials.

• Versatile Applications: Ammonium Dihydrogen Phosphate finds application in various industries, including agriculture, food, flame retardants, and pH regulation, due to its properties and compatibility with different processes.

 

Specification

Ammonium dihydrogen phosphate is also known as Monoammonium phosphate. It is a white tetragonal crystals with chemical formula NH₄H₂PO₄. Its EINECS registry number is 231-764-5 and its CAS number is 7722-76-1. What's more, the substance is soluble in water which will melt at 190 °C. Ammonium dihydrogen phosphate can be mixed with all water-soluble fertilisers, except for calcium fertilisers and concentrated magnesium solutions. It should be kept in a tightly closed container, stored in a cool, dry, ventilated area and protected against physical damage. Ammonium dihydrogen phosphate is stable under ordinary conditions of use and storage.

Physical properties about Ammonium dihydrogen phosphate are: (1)ACD/LogP: -2.148; (2)ACD/LogD (pH 5.5): -5.41; (3)ACD/LogD (pH 7.4): -6.38; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)#H bond acceptors: 4; (7)#H bond donors: 3; (8)Boiling Point: 158 °C at 760 mmHg; (9)Vapour Pressure: 1.41 mmHg at 25°C

Preparation of Ammonium dihydrogen phosphate: Ammonium dihydrogen phosphate can be prepared by venturi cyclic reaction method. Firstly, you should dilute 85% thermal phosphoric acid to 1.3～1.4 times and then add into reactor where it mixed and reacted with ammonia.

H₃PO₄ + NH₃ → NH₄H₂PO₄

There also are neutralization method and multiple decomposite method in industrial production, but neutralization method is more commonly used. It will need phosphoric acid and aqueous ammonia.

H₃PO₄ + NH₄OH → NH₄H₂PO4 + H₂O

Uses of Ammonium dihydrogen phosphate: Ammonium dihydrogen phosphate is often used in the blending of dry agricultural fertilizers. It is a widely used crystal in the field of optics due to its birefringence properties. The compound is also a component of the ABC powder in some dry chemical fire extinguishers. This substance is also supplied in an emerald green or aquamarine crystal growing box kit for kids.

When using Ammonium dihydrogen phosphate, you should very cautious about it. This chemical may cause inflammation to the skin or other mucous membranes. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: [NH4+].OP(=O)(O)[O-]
(2)InChI: InChI=1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
(3)InChIKey: LFVGISIMTYGQHF-UHFFFAOYSA-N

 

COA

Description	White powder	Complies
Identification	IR	Complies
	HPLC	Complies
Heavy metal	≤10ppm	5ppm
Pb	≤3ppm	1.5ppm
Hg	≤0.1ppm	0.05ppm
Cd	≤1ppm	0.2ppm
Loss on drying	≤0.5%	0.12
Residue on lgnition	≤0.1%	0.03
Single impurity	≤0.5%	0.12
Total impurity	≤1.0%	0.29
Total bacteria	≤1000cfu/g	<1000
Yeast and Mould	≤100 cfu/g	<000
E.coli/25g	Absent	Absent
Salmonella/25g	Absent	Absent
Assay	≥99.0%	99.4%

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

 

 

 

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