Calcium pyrophosphate (Ca2P2O7)
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Calcium pyrophosphate (Ca2P2O7)
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CAS No:
7790-76-3
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Formula:
Ca.1/2H4O7P2
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Chemical Name:
Calcium pyrophosphate (Ca2P2O7)
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Synonyms:
Diphosphoric acid,calcium salt (1:2);Pyrophosphoric acid,calcium salt (1:2);Calcium pyrophosphate (Ca2P2O7);Calcium pyrophosphate;Dicalcium pyrophosphate;Calcium phosphate (Ca2P2O7);Dicalcium diphosphate;NP 970-10;C 54-80;Calcium metaphosphate oxide (Ca2(PO3)2O);Calcium (diphosphate) (Ca2(P2O7));15099-12-4;77308-72-6;847870-11-5;1269629-40-4;1354651-09-4;1431382-02-3;1620054-55-8;1914981-03-5;2243418-01-9;2464713-84-4;2562357-72-4
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CAS No:
Description
white powder
DryPowder|A fine, white, odourless powder
Calcium diphosphate is a calcium phosphate. It contains a diphosphate(4-).|An inorganic pyrophosphate which affects calcium metabolism in mammals. Abnormalities in its metabolism occur in some human diseases, notably HYPOPHOSPHATASIA and pseudogout (CHONDROCALCINOSIS).
Calcium pyrophosphate (Ca2P2O7) Basic Attributes
254.1
253.83700
232-221-5
X69NU20D19
DTXSID50872512
Polymorphous crystals or powder|White powder
28353100
Characteristics
136
0.94120
White Powder
3.09 g/cm3
1353 °C
INDEX OF REFRACTION: 1.585, 1.604
soluble in hydrochloric acid and nitric acid. Insoluble in water.
Nonflammable
Between 5,5 and 7,0 (10 % suspension in water)
Safety Information
NONH for all modes of transport
3
36/37/38
26-36
Xi
The warehouse is low-temperature, ventilated and dry
P261-P305 + P351 + P338
H315-H319-H335
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Calcium pyrophosphate used as a nutrient is generally recognized as safe when used in accordance with good manufacturing practice.|Calcium pyrophosphate used as a nutrient and/or dietary supplement is generally recognized as safe when used in accordance with good manufacturing or feeding practice.
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 54 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Calcium pyrophosphate (Ca2P2O7) Use and Manufacturing
... By ignition of CaHPO4: St Pierre, J Am Chem SOC 77, 2197 (1955).
Calcium Pyrophosphate is a nutrient and dietary supplement that exists as a white odorless powder, insoluble in water. it is used in dental impression materials and as a buffer.
Fillers
Grade: FCC
Food, beverage, and tobacco product manufacturing|Diphosphoric acid, calcium salt (1:2): ACTIVE|...FOOD-SCIENCE LITERATURE & SEVERAL PATENTS HAVE PROPOSED CALCIUM ACID PYROPHOSPHATE, CAH2P2O7, AS A LEAVENING ACID. HOWEVER, NO COMMERCIAL FOOD APPLICATIONS...ARE KNOWN. DIBASIC CALCIUM PYROPHOSPHATE, CA2P2O7, IS NOT APPLICABLE IN FOOD...IT IS USED AS AN INSOL CRYSTALLINE POLISHING AGENT IN SOME TOOTHPASTES.|/FERTILIZER INGREDIENT/. ANY CALCIUM SALT OF POLYPHOSPHORIC ACID SUCH AS...DICALCIUM PYROPHOSPHATE... FERTILIZER GRADES OF CALCIUM POLYPHOSPHATE GENERALLY REFER TO PHOSPHATE MIXTURES CONTAINING A SUBSTANTIAL PROPORTION OF ONE OR MORE CALCIUM POLYPHOSPHATES...
Food additives|Cosmetics -> Abrasive
Food Additives -> ACIDITY_REGULATOR; YEAST_FOOD;
Computed Properties
Molecular Weight:254.10
Hydrogen Bond Acceptor Count:7
Exact Mass:253.8371080
Monoisotopic Mass:253.8371080
Topological Polar Surface Area:136
Heavy Atom Count:11
Complexity:124
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes
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