WordNet

street name for lysergic acid diethylamide (同)back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen
any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
having the characteristics of an acid; "an acid reaction"

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酸性の / 酸味のある,すっぱい(sour) / (言葉・態度などが)厳しい,しんらつな / 酸 / すっぱいもの / 《俗》=LSD

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/05/02 23:05:50」(JST)

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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 + H₂O 2H₃PO₄

Pyrophosphoric acid is a medium strong inorganic acid. Anions, salts, and esters of pyrophosphoric acid are called pyrophosphates.

While pyrophosporic acid is corrosive, it is not known to be otherwise toxic.^[1]

References

^ Material Safety Data Sheet: Pyrophosphoric acid MSDS www,sciencelab.com

External links

Pyrophosphoric acid at PubChem

UpToDate Contents

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English Journal

Identification of a novel post-hydrolytic state in CFTR gating.

Jih KY, Sohma Y, Li M, Hwang TC.SourceDalton Cardiovascular Research Center, Department of Medical Pharmacology and Physiology, University of Missouri-Columbia, Columbia, MO 65211, USA.
The Journal of general physiology.J Gen Physiol.2012 May;139(5):359-70. Epub 2012 Apr 16.
Adenosine triphosphate (ATP)-binding cassette (ABC) transporters, ubiquitous proteins found in all kingdoms of life, catalyze substrates translocation across biological membranes using the free energy of ATP hydrolysis. Cystic fibrosis transmembrane conductance regulator (CFTR) is a unique member of
PMID 22508846

Changes in expression of soluble inorganic pyrophosphatases of Phaseolus vulgaris under phosphate starvation.

Hernández-Domíguez EE, Valencia-Turcotte LG, Rodríguez-Sotres R.SourceDepartamento de Bioquímica, Facultad de Química, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Mexico.
Plant science : an international journal of experimental plant biology.Plant Sci.2012 May;187:39-48. Epub 2012 Feb 6.
Phosphorus is an essential element for all living cells, but its availability is often limiting in the soil. Plants have adapted to such limitation and respond to phosphorus deficiency. The soluble inorganic pyrophosphatases (PPase; EC 3.6.1.1) recycle the pyrophosphate produced by many biosynthetic
PMID 22404831

Japanese Journal

Fabrication and evaluation of deep-proton-exchanged and annealed waveguides in MgO:stoichiometric-LiTaO

Jpn. J. Appl. Phys. 54(7), 070301, 2015-06-05
NAID 150000110992

Highly Ordered Anodic Alumina Nanofibers Fabricated via Two Distinct Anodizing Processes

ECS Electrochemistry Letters 4(5), H14-H17, 2015
NAID 120005625309

Ultra-High Density Single Nanometer-Scale Anodic Alumina Nanofibers Fabricated by Pyrophosphoric Acid Anodizing

Scientific reports 4, 7411, 2014-12-10
NAID 120005530848

「ピロリン酸」

Pyrophosphoric acid
	IUPAC name Diphosphoric acid; μ-oxido-bis(dihydroxidooxidophosphorus)
	Other names Diphosphoric acid
Identifiers
CAS number	2466-09-3
PubChem	1023
ChemSpider	996
UNII	4E862E7GRQ
ChEBI	CHEBI:29888
ChEMBL	CHEMBL1160571
Jmol-3D images	Image 1
	SMILES O=P(O)(O)OP(=O)(O)O ;
	InChI InChI=1S/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6) ; Key: XPPKVPWEQAFLFU-UHFFFAOYSA-N InChI=1/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6); Key: XPPKVPWEQAFLFU-UHFFFAOYAX ;
Properties
Molecular formula	H4P2O7
Molar mass	177.98 g/mol
Melting point	71.5 °C
Solubility in water	Extremely soluble
Solubility	Very soluble in alcohol, ether
	(verify) (what is: /?); Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
	Infobox references

　　[★]

英: pyrophosphate, PPi, pyrophosphoric acid
同: 二リン酸 diphosphoric acid、焦性リン酸 pyrophosphoric acid、無機ピロリン酸 inorganic pyrophosphate
関: 自由エネルギー

[1] Material Safety Data Sheet: Pyrophosphoric acid MSDS www,sciencelab.com

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pyrophosphoric acid