Chemical Name: Diphosphoric acid
Molecular Formula: Na4O7P2
Molecular Weight: 265.90
InChI Key: FQENQNTWSFEDLI-UHFFFAOYSA-J
InChI: InChI=1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)/q4*+1;/p-4

Product pricing and availability information
Assay	Pack Size	Price	Stock
98%	1g	N/A	N/A
98%	5g	N/A	N/A
98%	Bulk Quantity	N/A	N/A

LogP:	0.94120
Bolling_Point:	93.8 °C
FW:	265.902
More_Info:	['1 . Appearance White 结晶粉末。有吸湿性 ', '2 . Density（g/mL 25ºC）2534 ', '3 . Relative vapor density（g/mL,Atmosphere =1）Unknow ', '4 . Melting point（ºC）980 ', '5 . Boiling point（ºC，Atmospheric pressure）Unknow ', '6 . Boiling point（ºC,52kPa）Unknow ', '7 . Refractive index（n20/D）Unknow ', '8 . Flash point（ºC，）Unknow ', '9 . Specific rotation（º）Unknow ', '10 . Spontaneous ignition point or ignition temperature（ºC）Unknow ', '11 . Vapor pressure（kPa,25ºC）Unknow ', '12 . Saturated vapor pressure（kPa,60ºC）Unknow ', '13 . Combustion heat（KJ/mol）Unknow ', '14 . Critical temperature（ºC）Unknow ', '15 . Critical pressure（KPa）Unknow ', '16 . Oil-water（Octanol /Water ）Logarithmic Value of Distribution Coefficient （25℃）Unknow ', '17 . Upper limit of explosion（%,V/V）Unknow ', '18 . Lower limit of explosion（%,V/V）Unknow ', '19 . Solubility (mg/mL)易Soluble in Water ，Water 溶液呈碱性，Insoluble in 醇']
Melting_Point:	80 °C
MF:	Na4O7P2
Exact_Mass:	265.871002
Density:	2.53 g/mL at 25 °C(lit.)
PSA:	155.23000

Symbol:	GHS05, GHS07
RIDADR:	NONH for all modes of transport
HS_Code:	2835399000
Risk_Statements(EU):	R36/37/38
WGK_Germany:	3
Personal_Protective_Equipment:	dust mask type N95 (US);Eyeshields;Gloves
RTECS:	UX7350000
Hazard_Codes:	Xi:Irritant
Warning_Statement:	P280-P305 + P351 + P338
Safety_Statements:	H302-H318