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Ammoniumdihydrogenorthophosphat

Ammonium dihydrogen phosphate Struktur
7722-76-1
CAS-Nr.
7722-76-1
Bezeichnung:
Ammoniumdihydrogenorthophosphat
Englisch Name:
Ammonium dihydrogen phosphate
Synonyma:
MAP;MONOAMMONIUM PHOSPHATE;AMMONIUM PHOSPHATE;12-61-00;Ammonium dihydrogen;AMMONIUM BIPHOSPHATE;monoammoniumacidphosphate;PHOSPHORIC ACID MONOAMMONIUM SALT;AMMONIUM DIHYDROGEN ORTHOPHOSPHATE;Ammonium Hydrogen Monohydric Phosphate
CBNumber:
CB6131092
Summenformel:
H6NO4P
Molgewicht:
115.03
MOL-Datei:
7722-76-1.mol

Ammoniumdihydrogenorthophosphat Eigenschaften

Schmelzpunkt:
190 °C (dec.) (lit.)
Siedepunkt:
87.4 °C
Dichte
1.02 g/mL at 20 °C
Dampfdruck
0.066 hPa (125 °C)
RTECS-Nr.
TC6587000
storage temp. 
Inert atmosphere,Room Temperature
L?slichkeit
H2O: 0.1 M at 20 °C, clear, colorless
Aggregatzustand
Solid
Farbe
White or colorless
Wichte
1.803
S?ure-Base-Indikators(pH-Indikatoren)
3.8 - 4.4
PH
3.8-4.4 (25℃, 50mg/mL in H2O)
Geruch (Odor)
brilliant wh. cryst. or powd., odorless
Wasserl?slichkeit
368 g/L (20 ºC)
maximale Wellenl?nge (λmax)
λ: 260 nm Amax: ≤0.059
λ: 280 nm Amax: ≤0.050
Merck 
14,543
InChIKey
LFVGISIMTYGQHF-UHFFFAOYSA-N
LogP
-2.148 (est)
CAS Datenbank
7722-76-1(CAS DataBase Reference)
EPA chemische Informationen
Monoammonium phosphate (7722-76-1)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 36/37/38
S-S?tze: 24/25-36-26
RIDADR  UN3264
WGK Germany  1
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  31054000
Giftige Stoffe Daten 7722-76-1(Hazardous Substances Data)
Toxizit?t LD50 orally in Rabbit: 5750 mg/kg LD50 dermal Rabbit > 7940 mg/kg
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P261 Einatmen von Staub vermeiden.
P304+P340 BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
P405 Unter Verschluss aufbewahren.

Ammoniumdihydrogenorthophosphat Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Chemische Eigenschaften

Ammonium phosphate occurs in two forms-the monobasic, NH4H2P04, and dibasic,(NH4)2HP04, forms, It is a white crystalline solid that is soluble in water. Ammonium phosphate is a product of the reaction between ammonia and phosphoric acid.Ammonium phosphate is an important fertilizer and is used as a fire retardant

Physikalische Eigenschaften

Electrooptic coefficient (cm/stat-volt): γ63=-2.54×10-7, γ41=62×10-7
Dielectric constants: ε0=56.4–55.9 (102 –108 Hz, EC), 16.4–13.7 (102 –10 Hz, E//C).

Physikalische Eigenschaften

White crystalline powder; odorless; density 1.80 g/cm3; readily dissolves in water (40 g/ 100 g); pH of 0.2 molar solution 4.2; slightly soluble in alcohol; insoluble in acetone.

Verwenden

Ammonium dihydrogen phosphate is a general purpose food additive which is readily soluble in water. A 1% solution has a ph of 4.3–5.0. It is used as a dough strengthener and leavening agent in baked goods and as a firming agent and ph control agent in condiments and puddings. It is also used in baking powder with sodium bicarbonate and as a yeast food.

synthetische

Preparative method similar to its dibasic salt; obtained by reaction of equimolar amounts of ammonia and phosphoric acid:
NH3 + H3PO4 → (NH4)H2PO4.

Definition

ChEBI: The ammonium salt of phosphoric acid (molar ratio 1:1).

Allgemeine Beschreibung

Ammonium phosphate monobasic (APM) is an inorganic salt widely used in fertilizer, baking powder and yeast production. It is also employed as an agent to control pH of a solution and in corrosion inhibition. APM can be prepared by reacting phosphoric acid with anhydrous ammonia maintaining the pH below 5.8. The change in some of the physical characteristics on its addition to a high carbonate containing unfired and fired illitic shale has been studied.

Landwirtschaftliche Anwendung

Ammonium phosphates refer to a generic class of phosphorus fertilizers and are manufactured by reacting anhydrous ammonia with orthophosphoric acid or superphosphoric acid. These are either in solid or liquid form.
Ammonium phosphate fertilizers are highly soluble in water and fast acting in soil to give nitrogen and phosphorus in a chemical combination. They form an important base for many compound fertilizers. Both mono and diammonium phosphates have good physical properties when synthesized from the wetprocess phosphoric acid. Storage properties and the ease of granulation depends on the amount of impurities, which form a gel like structure (mainly aluminum and iron phosphates). This gel promotes granulation and serves as a conditioner to prevent caking even at moderately high moisture levels. A small proportion of phosphate rock added to phosphoric acid before ammoniation improves the granulation.
Ammonium phosphates, particularly Ammonium dihydrogen phosphate(DAP), are the most popular phosphate fertilizers worldwide because of their high utility and good physical properties. The standard commodity grade of diammonium phosphate is 18-46-0. Pure and completely soluble ammonium phosphates are used mainly as liquid fertilizers. In Britain, diammonium phosphate is not sold directly in this form, but is used to make compound fertilizers with a wide variety of plant foods.

m?gliche Exposition

Used in fireproofing of textiles; wood and paper; in soldering flux; as a fertilizer; a buffer; in baking powder and food additives.

Versand/Shipping

There are no DOT/UN listed requirements.

l?uterung methode

Crystallise it from water (0.7mL/g) between 100o and 0o.

Inkompatibilit?ten

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Contact with air causes this chemical to produce anhydrous ammonia fumes.

Waste disposal

May be flushed to sewer with huge volumes of water.

Ammoniumdihydrogenorthophosphat Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Ammoniumdihydrogenorthophosphat Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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7722-76-1(Ammoniumdihydrogenorthophosphat)Verwandte Suche:


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  • ammoniumdihydrogenphosphate((nh4)h2po4)
  • ammoniumdihydrophosphate
  • ammoniummonobasicphosphate
  • ammoniummonobasicphosphate(nh4h2po4)
  • ammoniumorthophosphatedihydrogen
  • ammoniumphosphate(nh4h2po4)
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  • dihydrogenammoniumphosphate
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  • monoammoniumdihydrogenphosphate((nh4)h2po4)
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