Ammonium Phosphate

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ammonium phosphate

[ə′mōn·yəm ′fäs‚fāt]
(inorganic chemistry)
(NH4)2HPO4 A salt of ammonia and phosphoric acid that forms white monoclinic crystals, which are soluble in water; used as a fertilizer and fire retardant.

Ammonium Phosphate


(in Russian, ammofos), double ammonium-phosphate concentrated mineral fertilizer. It is composed principally of monoammonium phosphate (NH4 H2 PO4) with an admixture of diammonium phosphate [(NH4)2 HPO4 ]. It contains 45–52 percent phosphoric anhydride and 10–12 percent nitrogen. It is used on various soils as a fundamental or supplementary fertilizer.

References in periodicals archive ?
Abbreviations: APP, ammonium polyphosphate; MAP, monoammonium phosphate; MCP' monocalcium phosphate; TG-MAP, technical grade monoammonium phosphate.
The key types of mineral fertilizers in its product range are monoammonium phosphate (ammophos), diammonium phosphate and compound (NPK) fertilizers: diammophoska, NPK-13-19-19, liquid compound fertilizers and NPS.
According to the National Fire Protection Association and quoted by H3R Aviation, "Any chemical powder can produce some degree of corrosion or other damage, but monoammonium phosphate is acidic and corrodes more readily than other dry chemicals...."
The fire-retardant chemicals mostly used for wood products contain boron, phosphorus, phosphoric acid (PA) and its salts, including monoammonium phosphate (MAP) and diammonium phosphate (DAP).
1,3-hcl (tn) 100, 1.4 monoammonium phosphate (nh4h2po4) (kg) 2200, 1.5 sulphamic acid (kg) 500, 1.6 citric acid (kg) 500 and 1.7 sodium hypochlorite naocl (kg) 100.
[ClickPress, Thu May 15 2014] Phosphate Fertilizers Market By Active Ingredient (Diammonium Phosphate, Monoammonium Phosphate, Triple Superphosphate, Single Superphosphate, Superphosphate, Calcium Phosphate), By Crop Type Cereals & Grains, Oil Seeds, Fruits & Vegetables), By Geography: Trends & Forecasts To 2018
Summary: Moroccan phosphate group "Office Cherifien des phosphates" (OCP) has announced the launch of a major investment program to expand its production of Diammonium Phosphate (DAP)and Monoammonium Phosphate (ADP).
Lombi E, McLaughlin MJ, Johnston C, Armstrong RD, Holloway RE (2004) Mobility and lability of phosphorus from granular and fluid monoammonium phosphate differs in a calcareous soil.
In the next step, the individual veneer specimens were placed in plexiglass boxes and laid horizontally 4 cm apart from each other in 3 percent or 6 percent aqueous solutions of borax ([Na.sub.2][B.sub.4][O.sub.7] x 10[H.sub.2]O) or boric acid ([H.sub.3]B[O.sub.3]), or in 3 percent or 11 percent aqueous solutions of monoammonium phosphate (MAP) (N[H.sub.4][H.sub.2]P[O.sub.4]) or diammonium phosphate (DAP) ([(N[H.sub.4]).sub.2]HP[O.sub.4]).
Phosphate Commodity Exports (K mt) 1994e 1993 1992 1991 Average [P.sub.2][O.sub.5] Content Phosphate Rock 32 3,350 3,575 3,919 5,622 Single superphosphate 18 0 0 0 35 Triple superphosphate 46 790 762 1,114 912 Diammonium Phosphate 46 8,300 7,428 8,277 8,789 Monoammonium Phosphate 51 1,400 1,097 885 758 Phosphoric Acid 100 460 324 491 624 Elemental Phosphorus 229 18 17 18 17 Sources: USDC and Fertecon Research Centre (e) Estimated Table 6 World Phosphate Rock Capacity (M mt/yr) 1993 1990 North America 53.15 58.50 Latin America 6.67 6.50 Europe 14.53 35.46 Africa 49.55 47.90 Asia 38.10 34.26 Oceania 2.25 2.25 Total 164.25 184.87 Source: Fertecon Research Centre Elsewhere in the world, the major change in rock production again came in the FSU.
So, for that 5 tonne/ha wheat crop, you will need 75 kg/ha monoammonium phosphate (MAP), 200 kg/ha urea and 45 kg/ha Muriate of Potash (MOP).
The 3 P fertilisers were: granular monoammonium phosphate (MAP, 18 : 22 : 0 w/w %) (~3 mm granule diameter), liquid technical grade monoammonium phosphate (TGMAP; 12:26:0 w/w %), and liquid ammonium polyphosphate (APP; 16:23:0 w/w %).