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Pyrophosphorsure

Pyrophosphoric acid Struktur
2466-09-3
CAS-Nr.
2466-09-3
Bezeichnung:
Pyrophosphorsure
Englisch Name:
Pyrophosphoric acid
Synonyma:
DIPHOSPHORIC ACID;eizh;iphosphoricaci;Pyrophosphorsure;PYROPHOSPHORIC ACID;inorganpyrophosphate;Diphosphoric(V) acid;PYROPHOSPHORIC ACID, 90+%;Pyrophosphoric acid (8CI);PYROPHOSPHORIC ACID, TECH.
CBNumber:
CB0740227
Summenformel:
H4O7P2
Molgewicht:
177.98
MOL-Datei:
2466-09-3.mol

Pyrophosphorsure Eigenschaften

Schmelzpunkt:
61 °C
Dichte
approximate 1.9g/ml (25℃)
storage temp. 
-20°C, Hygroscopic
L?slichkeit
DMSO (Soluble)
pka
0.99±0.10(Predicted)
Aggregatzustand
white crystals
Farbe
white crystals, crystalline
PH
pKa1= 0.86, pKa2 = 1.76, pKa3 = 5.88, pKa4 = 8.14(25℃)
Wasserl?slichkeit
709g/100mL H2O (23°C); soluble alcohol, ether [MER06]
Merck 
13,8098
Stabilit?t:
Hygroscopic, Moisture Sensitive
InChI
InChI=1S/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6)
InChIKey
XPPKVPWEQAFLFU-UHFFFAOYSA-N
SMILES
P(OP(O)(=O)O)(O)(O)=O
CAS Datenbank
2466-09-3(CAS DataBase Reference)
EPA chemische Informationen
Diphosphoric acid (2466-09-3)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher C
R-S?tze: 22-34
S-S?tze: 26-36/37/39-45
RIDADR  UN 3260 8/PG 2
WGK Germany  3
RTECS-Nr. JL6672500
3-9-21
HazardClass  8
PackingGroup  III
HS Code  28092000
Speicherklasse 8B - Non-combustible corrosive hazardous materials
Hazard Classifications Acute Tox. 4 Oral
Skin Corr. 1B
Bildanzeige (GHS) Corrosion (GHS05)Exclamation Mark (GHS07)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H314 Verursacht schwere Ver?tzungen der Haut und schwere Augensch?den. ?tzwirkung auf die Haut Kategorie 1B Achtung P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Sicherheit
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
P310 Sofort GIFTINFORMATIONSZENTRUM/Arzt/ anrufen.

Pyrophosphorsure Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R22:Gesundheitssch?dlich beim Verschlucken.
R34:Verursacht Ver?tzungen.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).

Beschreibung

Pyrophosphoric acid, also known under the name diphosphoric acid, is colorless, odorless, hygroscopic and is soluble in water, diethyl ether and ethyl alcohol. It is produced from phosphoric acid by dehydration. Pyrophosphoric acid slowly hydrolyzes in the presence of water into phosphoric acid.
H4P2O7 +H2O2H3PO4
Upon heating, phosphoric acid loses water, being converted successively, and to some extent concurrently, into the pyro- and meta-acids:
2H3PO4H4P2O7 +H2O
nH3PO4(HPO3)n + [H2O]n

Chemische Eigenschaften

White to very pale yellow glassy solid

Physikalische Eigenschaften

Colorless needles or liquid; hygroscopic. Crystallizes in two anhydrous forms: a metastable form melting at 54.3°C and a second and more stable form melting at 71.5°C; extremely soluble in cold water, reacting very slowly to form phosphoric acid; decomposing much faster in hot water; very soluble in alcohol and ether.

Verwenden

Pyrophosphoric Acid has been shown to enhance the rate of pyrophosphate hydrolysis by nonenzymatic catlysis and by inorganic pyrophoshatase. Pyrophosphoric Acid can be used for the preparation of vanadyl pyrophosphato methoxide cluster anion. Pyrophosphoric Acid is used in anion binding of inorganic phosphates due to is ability to form complexes.

Definition

ChEBI: An acyclic phosphorus acid anhydride obtained by condensation of two molecules of phosphoric acid.

synthetische

According to early investigators, the pyro-acid is formed as low as 100 °C, and the conversion is complete between 255 and 260 °C. Phosphorous oxychloride reacts with phosphoric acid in the following manner:
5H3PO4 + POC133H4P2O7 + 3HC1
A mixture of the ortho- and meta-acids may be condensed together to form the pyro-acid by heating on the water bath:
nH3PO4 +[HPO3]n[H4P2O7]n

Pyrophosphorsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Pyrophosphorsure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 251)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Chuanghai Biotechnology Co., Ltd
+8615531151365
mina@chuanghaibio.com China 18126 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652
info@fdachem.com China 20122 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21587 55
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5906 58
BOC Sciences
+1-631-485-4226
inquiry@bocsci.com United States 19936 58
Antai Fine Chemical Technology Co.,Limited
18503026267
info@antaichem.com CHINA 9636 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763
sales@tnjchem.com China 34563 58
Wuhan Fortuna Chemical Co., Ltd
+86-27-59207850
info@fortunachem.com China 5982 58
Baoji Guokang Healthchem co.,ltd
+8615604608665 15604608665
dominicguo@gk-bio.com CHINA 9414 58
Dayang Chem (Hangzhou) Co.,Ltd.
+86-0571-88938639 +8617705817739
info@dycnchem.com China 52705 58

2466-09-3(Pyrophosphorsure)Verwandte Suche:


  • PYROPHOSPHORIC ACID
  • Pyrophosphoric acid syrupy
  • PYROPHOSPHORIC ACID, TECH.
  • PYROPHOSPHORIC ACID, 90+%
  • Diphosphoric(V) acid
  • Pyrophosphoric acidDiphosphoric acid
  • Pyrophosphoric acid technical grade
  • Pyrophosphoric acid Vetec(TM) reagent grade, 94%
  • eizh
  • iphosphoricaci
  • inorganpyrophosphate
  • Pyrophosphoric acid (8CI)
  • Pyrophosphorsure
  • DIPHOSPHORIC ACID
  • 2466-09-3
  • 2466-9-3
  • 2466/9/3
  • 206975
  • 2466-09-1
  • H4P2O7
  • HO2POOPOOH2
  • Synthetic Reagents
  • Inorganic Acids
  • API intermediates
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