Molar Mass Of Nh4 2hpo4
 | |
| Names | |
|---|---|
| IUPAC name diammonium hydrogen phosphate | |
| Other names ammonium monohydrogen phosphate, ammonium hydrogen phosphate, ammonium phosphate dibasic | |
| Identifiers | |
| CAS Number |
|
| 3D model (JSmol) |
|
| ChEBI |
|
| ChemSpider |
|
| ECHA InfoCard | 100.029.079 |
| E number | E342(ii) (antioxidants, ...) |
| PubChem CID |
|
| UNII |
|
| CompTox Dashboard (EPA) |
|
| InChI
| |
| SMILES
| |
| Properties | |
| Chemical formula | (NH4)twoHPO4 |
| Tooth mass | 132.06 g/mol |
| Appearance | colorless monoclinic crystals |
| Density | i.619 g/cm3 |
| Melting point | 155 °C (311 °F; 428 K) decomposes |
| Solubility in h2o | 57.five thousand/100 mL (10 °C) 106.7 thou/100 mL (70 °C) |
| Solubility | insoluble in alcohol, acetone and liquid ammonia |
| Refractive index (north D) | 1.52 |
| Thermochemistry | |
| Std enthalpy of | −1566.91 kJ/mol |
| Hazards | |
| NFPA 704 (burn diamond) | 2 0 ane |
| Flash point | Not-flammable |
| Rubber data sheet (SDS) | ICSC 0217 |
| Related compounds | |
| Other anions | Monoammonium phosphate Triammonium phosphate |
| Other cations | Disodium phosphate Dipotassium phosphate |
| Related compounds | Ammonium nitrate Ammonium sulfate |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Diammonium phosphate (DAP; IUPAC name diammonium hydrogen phosphate; chemic formula (NH4)2(HPO4) is one of a series of h2o-soluble ammonium phosphate salts that can exist produced when ammonia reacts with phosphoric acid.
Solid diammonium phosphate shows a dissociation pressure level of ammonia every bit given by the post-obit expression and equation:[2]
- (NH4)2HPO4(southward) ⇌ NH3(grand) + (NHfour)H2POiv(southward)
At 100 °C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.[three]
According to the diammonium phosphate MSDS from CF Industries, Inc., decomposition starts equally low as 70 °C: "Chancy Decomposition Products: Gradually loses ammonia when exposed to air at room temperature. Decomposes to ammonia and monoammonium phosphate at effectually 70 °C (158 °F). At 155 °C (311 °F), DAP emits phosphorus oxides, nitrogen oxides and ammonia."
Uses [edit]
DAP is used as a fertilizer.[4] When applied equally plant food, it temporarily increases the soil pH, but over a long term the treated ground becomes more acidic than earlier, upon nitrification of the ammonium. Information technology is incompatible with alkaline chemicals because its ammonium ion is more likely to convert to ammonia in a high-pH environment. The average pH in solution is 7.5–8.[5] The typical formulation is 18-46-0 (18% N, 46% PtwoOfive, 0% GiiO).[5]
DAP tin can be used as a fire retardant. It lowers the combustion temperature of the material, decreases maximum weight loss rates, and causes an increase in the production of residue or char.[6] These are important effects in fighting wildfires as lowering the pyrolysis temperature and increasing the amount of char formed reduces that amount of available fuel and tin can atomic number 82 to the formation of a firebreak. It is the largest component of some pop commercial firefighting products and is the ingredient in "burn retardant" cigarettes.[seven]
DAP is also used every bit a yeast nutrient in winemaking and mead-making; as an additive in some brands of cigarettes purportedly as a nicotine enhancer; to prevent afterglow in matches, in purifying sugar; equally a flux for soldering tin, copper, zinc and contumely; and to control precipitation of alkali-soluble and acrid-insoluble colloidal dyes on wool.[i]
Natural occurrence [edit]
The chemical compound occurs in the nature as the exceedingly rare mineral phosphammite.[viii] [nine] The related dihydrogen chemical compound occurs as the mineral biphosphammite.[ten] [9] Both are related to guano deposits.[8] [10]
References [edit]
- ^ a b Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-eight
- ^ John R Van Wazer (1958). Phosphorus And Its Compounds - Book I: Chemistry. New York: Interscience Publishers, Inc. p. 503.
- ^ McKetta Jr, John J., ed. (1990). Encyclopedia of Chemical Processing and Design (Chemical Processing and Design Encyclopedia). New York: Marcel Dekker, Inc. p. 478. ISBN0-8247-2485-2.
- ^ IPNI. "Diammonium Phosphate" (PDF). world wide web.ipni.net. International Plant Nutrition Plant. Archived (PDF) from the original on 24 September 2015. Retrieved 21 July 2014.
- ^ a b International Plant Nutrition Institute. "Food Source Specifics: Diammonium Phosphate" (PDF). Archived (PDF) from the original on 2012-ten-21. Retrieved 2012-12-x .
- ^ George, C.W.; Susott, R.A. (April 1971). "Effects of Ammonium Phosphate and Sulfate on the Pyrolysis and Combustion of Cellulose". Research Paper INT-90. Intermountain Forest and Range Experiment Station: USDA Forest Service.
- ^ Phos-Chek MSDS [ permanent dead link ] , Phos-Chek website
- ^ a b "Phosphammite". www.mindat.org . Retrieved viii November 2020.
- ^ a b "List of Minerals". world wide web.ima-mineralogy.org. 21 March 2011. Retrieved eight November 2020.
- ^ a b "Biphosphammite". www.mindat.org . Retrieved viii November 2020.
External links [edit]
- International Chemical Prophylactic Carte 0217
- Diammonium phosphate fertilizer manufacturing process flowsheet
Molar Mass Of Nh4 2hpo4,
Source: https://en.wikipedia.org/wiki/Diammonium_phosphate
Posted by: ishmaelbobre1943.blogspot.com
0 Response to "Molar Mass Of Nh4 2hpo4"
Post a Comment