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Ammoniumsulfat Produkt Beschreibung

Ammonium sulfate Struktur
7783-20-2
CAS-Nr.
7783-20-2
Bezeichnung:
Ammoniumsulfat
Englisch Name:
Ammonium sulfate
Synonyma:
Liase;dolamin;nsc77671;mascagnite;(NH4)2 SO4;actamaster;Wasfcaguite ;caswellno.048;Ammoniumsulfat;Coaltrol LPA-40
CBNumber:
CB9466357
Summenformel:
H8N2O4S
Molgewicht:
132.14
MOL-Datei:
7783-20-2.mol

Ammoniumsulfat Eigenschaften

Schmelzpunkt:
280 °C
Dichte
1.77 g/mL at 25 °C(lit.)
Dampfdruck
<1 Pa (25 °C)
Brechungsindex
n20/D 1.396
Flammpunkt:
26 °C
storage temp. 
2-8°C
Löslichkeit
H2O: 1 M at 20 °C, clear, colorless
Aggregatzustand
Solid
Farbe
Yellow to orange
Wichte
1.769
PH
5.0-6.0 (25℃, 1M in H2O)
Wasserlöslichkeit
77 g/100 mL (25 ºC)
maximale Wellenlänge (λmax)
λ: 260 nm Amax: ≤0.037
λ: 280 nm Amax: ≤0.030
Merck 
14,555
Stabilität:
Stable. Contact with strong oxidizers may cause fire or explosion. Incompatible with strong bases.
InChIKey
BFNBIHQBYMNNAN-UHFFFAOYSA-N
CAS Datenbank
7783-20-2(CAS DataBase Reference)
EPA chemische Informationen
Sulfuric acid diammonium salt(7783-20-2)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi,Xn
R-Sätze: 10-36/37/38-22
S-Sätze: 37/39-26-36-24/25
RIDADR  UN 1170 3/PG 3
WGK Germany  1
RTECS-Nr. BS4500000
TSCA  Yes
HS Code  31022100
Giftige Stoffe Daten 7783-20-2(Hazardous Substances Data)
Toxizität LD50 orally in Rabbit: 2840 mg/kg
Bildanzeige (GHS)
Alarmwort
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H412 Schädlich für Wasserorganismen, mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 3 P273, P501
Sicherheit
P273 Freisetzung in die Umwelt vermeiden.

Ammoniumsulfat Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R10:Entzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R22:Gesundheitsschädlich beim Verschlucken.

S-Sätze Betriebsanweisung:

S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

White crystalline powder

Verwenden

May be used for the precipitation or fractionation of proteins or for purification of antibodies. Useful for crystallographic analysis of nucleic acids and proteins.

Verwenden

manufacture of ammonia alum; in the manufacture of H2SO4 to free it from nitrogen oxides; analytical uses; freezing mixtures, flameproofing fabrics and paper; manufacture of viscose silk; tanning, galvanizing iron; in fractionation of proteins. The commercial grade is used as fertilizer.

Verwenden

Ammonium Sulfate is a dough conditioner, firming agent, and pro- cessing aid which is readily soluble in water with a solubility of approximately 70 g in 100 g of water at 0°c. the ph of a 0.1 molar solution in water is approximately 5.5. it is used in caramel produc- tion and as a source of nitrogen for yeast fermentation. in bakery products, up to 0.25 part per 100 parts by weight of flour is used.

Definition

ammonium sulphate: A whiterhombic solid, (NH4)2SO4; r.d. 1.77;decomposes at 235°C. It is very solublein water and insoluble in ethanol.It occurs naturally as the mineralmascagnite. Ammonium sulphatewas formerly manufactured from the‘ammoniacal liquors’ produced duringcoal-gas manufacture but is nowproduced by the direct reaction betweenammonia gas and sulphuricacid. It is decomposed by heating torelease ammonia (and ammoniumhydrogensulphate) and eventuallywater, sulphur dioxide, and ammonia.Vast quantities of ammoniumsulphate are used as fertilizers.

Allgemeine Beschreibung

White odorless solid. Sinks and dissolves in water.

Air & Water Reaktionen

Dissolves in water with evolution of some heat.

Reaktivität anzeigen

Ammonium sulfate is acidic in aqueous solution. When a little Ammonium sulfate is added to fused potassium nitrite, a vigorous reaction occurs attended by flame [Mellor 2:702 1946-47].

Landwirtschaftliche Anwendung

Ammonium sulphate, (NH4)2SO4, a water-soluble crystalline salt is a nitrogenous fertilizer containing about 2 1 % nitrogen and 24 % sulphur. It occurs naturally as the mineral mascagnite and offers many advantages as a fertilizer, such as low hygroscopicity, good physical properties, excellent chemical stability, good agronomic effectiveness and long shelf life.
Ammoniacal nitrogen is fned in the soil in an exchangeable form until nitrated by nitrifying bacteria. The ammoniacal nitrogen of ammonium sulphate does not leach out easily. Ammonium sulphate is an acid forming fertilizer, and hence used in neutral or alkaline soils. In its free flowing form, it is directly applied to the soil or blended with other granular materials. Ammonium sulphate also supplies sulphur, which is an essential nutrient for plants.
Ammonium sulphate is a quick-acting fertilizer. It is resistant to leaching as it gets adsorbed on the soil colloids, clay and humus, and replaces calcium. This adsorbed ammonium salt is converted to nitrate by nitrifying bacteria for use by growing plants. Ammonium sulphate is produced in different ways, The major ones are: (i) Production from synthesized ammonia and sulphuric acid.
(ii) Production of ammonium sulphate fertilizer by the gypsum process is widely used in many developing countries. In this process, ammonia is used along with pulverized calcium sulphate, carbon dioxide and water. Here ammonia made from nitrogen and hydrogen, reacts with carbon dioxide gas to produce ammonium carbonate. Ground gypsum reacts with ammonium carbonate solution to form ammonium sulphate and calcium carbonate.
Ammonium sulphate is commonly transported in polythene or paper bags. It is adsorbed on soil colloids, clay and humus, replacing calcium. It is more beneficial than nitrate fertilizers at planting time. This adsorbed portion is slowly released and in about a month most of the ammonium sulphate is converted into the nitrate form, which is used by growing plants.
Since rice crops absorb nitrogen even in the ammoniacal form, ammonium sulphate fertilizer is used as a source of nitrogen for rice in the USA and Southeast Asia. In the USA, ammonium sulphate is also used for potato scab control.
The main disadvantages of ammonium sulphate are its acid forming nature, low nitrogen percentage (21%) and high costs for packaging, storage and transportation.

Sicherheitsprofil

Moderately toxic by several routes. Human systemic effects by ingestion: hypermotility, diarrhea, nausea or vomiting. See also SULFATES. Incandescent reaction on heating with potassium chlorate. Reaction with sodmm hypochlorite gves the unstable explosive nitrogen trichloride. Incompatible with (K + NH4NO3), KNO2, (NaK + NH4NO3). When heated to decomposition it emits very toxic fumes of NOx, NH3, and SOx.

läuterung methode

Crystallise it twice from hot water containing 0.2% EDTA to remove metal ions, then finally from distilled water. Dry it in a desiccator for 2 weeks over Mg(ClO4)2. After 3 recrystallisations, ACS grade had Ti, K, Fe, Na at 11, 4.4, 4.4, 3.2 ppm respectively.

Ammoniumsulfat Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Ammoniumsulfat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 448)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 sales3257@jskolod.com CHINA 100 60
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 1861 55
Hebei Chisure Biotechnology Co., Ltd.
+8613292890173
0311 66567340 luna@speedgainpharma.com CHINA 1016 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30001 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23980 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28236 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 8918 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6372 58

7783-20-2(Ammoniumsulfat)Verwandte Suche:


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