Dinatriumdihydrogenpyrophosphat
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- CAS-Nr.
- 7758-16-9
- Bezeichnung:
- Dinatriumdihydrogenpyrophosphat
- Englisch Name:
- Sodium pyrophosphate
- Synonyma:
- SODIUM ACID PYROPHOSPHATE;SODIUM PYROPHOSPHATE;SAPP;DISODIUM PYROPHOSPHATE;DSPP;SAPP 28;SAPP 40;TwosodiuM pyrophosphatetwo hydrogen;Na4P2O7.nH20;disodiumdiphosphate
- CBNumber:
- CB7665738
- Summenformel:
- H5NaO7P2
- Molgewicht:
- 201.97
- MOL-Datei:
- 7758-16-9.mol
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Dinatriumdihydrogenpyrophosphat Eigenschaften
- Schmelzpunkt:
- decomposes 220℃ [MER06]
- Dichte
- (hexahydrate) 1.86
- Dampfdruck
- 0Pa at 20℃
- storage temp.
- -70°C
- Löslichkeit
- H2O: 0.1 M at 20 °C, clear, colorless
- Aggregatzustand
- white powder
- Farbe
- White to Off-White
- PH
- 3.5-4.5 (20℃, 0.1M in H2O, freshly prepared)
- Wasserlöslichkeit
- Fully miscible in water. Insoluble in alcohol and ammonia.
- maximale Wellenlänge (λmax)
- λ: 260 nm Amax: 0.11
λ: 280 nm Amax: 0.09
- Merck
- 13,8643
- Stabilität:
- Stable.
- InChI
- InChI=1S/Na.H4O7P2.H/c;1-8(2,3)7-9(4,5)6;/h;(H2,1,2,3)(H2,4,5,6);
- InChIKey
- IQTFITJCETVNCI-UHFFFAOYSA-N
- SMILES
- O(P(O)(O)=O)P(O)(O)=O.[NaH]
- LogP
- -3.420 (est)
- CAS Datenbank
- 7758-16-9(CAS DataBase Reference)
- EPA chemische Informationen
- Disodium diphosphate (7758-16-9)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H319 |
Verursacht schwere Augenreizung. |
Schwere Augenreizung |
Kategorie 2 |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
P264, P280, P305+P351+P338,P337+P313P |
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| Sicherheit |
| P305+P351+P338 |
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen. |
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Dinatriumdihydrogenpyrophosphat Chemische Eigenschaften,Einsatz,Produktion Methoden
S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
Disodium dihydrogendiphosphate [7758-16-9], disodium diphosphate, acidic sodium pyrophosphate, Na2H2P2O7, Mr 221.97, d 2.31. Its solubility in water is 13g Na2H2P2O7/100g H2O at 20 °C, and 20g at 80°C. The pH of a 1% aqueous solution is 4.1. The usual commercial product is the anhydrous, nonhygroscopic salt in powder form. The hexahydrate, Na2H2P2O7.6H2O, d 1.85, crystallizes from aqueous solution below 27 °C. Above this temperature, it is converted to the anhydrous form. Disodium diphosphate is used as a (tropically stable) acid carrier in baking powder, for improvement of flow properties in flour, for pH regulation, and in dental care products for prevention of tartar formation.
synthetische
Disodium dihydrogendiphosphate is produced from sodium dihydrogenmonophosphate by heating at 200-250℃：
Na2CO3+2H3PO4→2NaH2PO4+H2O+CO2↑
2NaH2PO4→Na2H2P2O7+H2O
Allgemeine Beschreibung
The APP (amyloid precursor protein) gene is mapped to human chromosome 21q21.3. It encodes a integral membrane protein. APPα is a soluble protein generated by sequential cleavage with α and γ secretase.
Sicherheitsprofil
Poison by intravenous
route. Moderately toxic by ingestion and
subcutaneous routes. An irritant to skin,
eyes, and mucous membranes. When heated
to decomposition it emits toxic fumes of
POx, and Na2O.
Dinatriumdihydrogenpyrophosphat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Dinatriumdihydrogenpyrophosphat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 351)Lieferanten
7758-16-9(Dinatriumdihydrogenpyrophosphat)Verwandte Suche:
- DisodiuM pytophospha
- Amyloid Precursor Protein β, Secreted
- ANTI-DSPP (N-TERM) antibody produced in rabbit
- Dentin sialophosphoprotein
- SodiuM pyrophosphate dibasic practical grade
- SODIUM PYROPHOSPHATE DIBASIC BIOULTR
- Food Grade Sodium Acid Pyrophosphate
- disodium pytophosphate
- DI-SODIUM DIHYDROGEN PYROPHOSPHATE
- Diphosphoric acid disodium salt
- SODIUM DIHYDROGEN PYROPHOSPHATE
- PYROPHOSPHATE DISODIUM SALT
- Sodium pyrophosphate, di-
- Sodium Acid Pyrophosphate (SAPP 28)
- Disoduim dihydrogen pyrophosphate
- Disodium dihydrogen pyrophosphate, Sodium diphosphate dibasic
- Amyloid Precursor Protein α, Secreted human
- sodium acid pyrophosphate for food
- PYROPHOSPHATE, DISODIUM PRACTICAL GRADE
- SodiumAcidPyrophosphateFoodGrade
- SODIUMHYDROGENPYROPHOSPHATE
- SODIUMACIDPYROPHOSPHATE,FCC
- sodiumpyrophosphate(na2h2p2o7)
- sodiumpyrophosphate,acid
- Sodium pyrophosphate dibasic
- Sodium dihydrogen(acid) pyrophosphate
- dinatriumpyrophosphat
- disodiumacidpyrophosphate
- disodiumdihydrogendiphosphate
- di-sodiumdihydrogenpyrophosphateanhydrous
- disodiumdiphosphate
- pyrophosphoricacid,disodiumsalt
- Disodium (hydroxy-oxidophosphoryl) hydrogen phosphate
- Diphosphoric acid dihydrogen α,β-disodium salt
- Sodium acidic pyrophosphate
- Sodium dihydrogen diphosphate(V)
- Na4P2O7.nH20
- Diphosphoric acid, sodium salt (1:2)
- Disodium pytophosphate USP/EP/BP
- Disodium dihydrogen pyrophosphate(SAPP)
- TIANFU-CHEM CAS:7758-16-9 Disodium pytophosphate
- Sodium Acid Pyrophosphate (SAPP) extrapure, 95%
- TwosodiuM pyrophosphatetwo hydrogen
- DISODIUM PYROPHOSPHATE
- DSPP
- SODIUM ACID PYROPHOSPHATE
- SAPP
- SAPP 28
- SAPP 40
- SODIUM PYROPHOSPHATE
- 7758-16-9
- 758-16-9
- H2Na2O7P2
- Na2H2P2O7
- Biochemicals and Reagents
- BioChemical
- BioChemika Ultra
- Biological Buffers
