Calciumphosphinat

Base Information

• Chemical Name: Calciumphosphinat
• CAS No.: 7789-79-9
• Deprecated CAS: 6298-64-2
• Molecular Formula: CaH4O4P2
• Molecular Weight: 170.055
• Hs Code.: 2835100000
• DSSTox Substance ID: DTXSID1052531
• Mol file: 7789-79-9.mol

Synonyms:Calciumphosphinat;DTXSID1052531;AMY21929;AKOS025243251;LS-192315

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Chemical Property of Calciumphosphinat

Chemical Property:

• Appearance/Colour: White powder and/or granules. Slight characteristic odor
• Melting Point: decomposes [ALF93]
• Boiling Point: 480℃[at 101 325 Pa]
• PKA: 12.6[at 20 ℃]
• PSA: 99.54000
• Density: 2.243[at 20℃]
• LogP: 0.81260
• Sensitive.: Hygroscopic
• Water Solubility.: Soluble in water. Practically insoluble in alcohol. Slightly soluble in glycerol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 165.8897733
• Heavy Atom Count: 7
• Complexity: 7.5

Purity/Quality:

Safty Information:

• Pictogram(s): F
• Hazard Codes: F
• Statements: 11
• Safety Statements: 7-15

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: [O-]P=O.[O-]P=O.[Ca+2]
• Description: Calcium hypophosphite has the molecular formula of Ca(H2PO2)2 and the molecular weight of 170.0631 g/mol. This salt can be prepared by the aqueous reaction of the carbonate or oxide with H3PO2: CaO + 2H3PO2 ? Ca(H2PO2)2 The salt is soluble in water (20 g/100 ml at 20°C) so that the solution must be evaporated to obtain crystals. Ca(H2PO2)2 has the CAS number of 7789-79-9 and the density of 1.59 g/cm3. It is composed of white square monoclinic crystalswhich are water soluble. It is insoluble in alcohol or ether.When heated to about 305°C, it disproportionates, forming calcium phosphate and phosphine: Ca(H2PO2)2 + heat ? CaHPO3 + PH3
• Physical properties: Calcium hypophosphite is relatively soluble in water, and when added to a solution of sodium hypophosphite, forms a double salt. Crystals were obtained by slow evaporation of the solution to form dodecahedra with well-developed {110} faces. The crystal structure of CaNa(H2PO2)3 belongs to the cubic system with space group, P213, Z = 4 and a = 9.721?. The structure consists of two kinds of octahedral groups, one with a calcium atom and the other with a sodium atom. Each atom of the hypophosphite ions is coordinated to each one of the calcium and sodium atoms to form the octahedral. This structure is, in general, typical of the salts of hypophosphorous acid. Calcium hypophosphite is readily available commercially since its main usage, both industrially and in Research, has proven to be as a source of hypophosphite anions to form other hypophosphites.
• Uses: It is employed as dietary supplement. The product is used as a flame retardant and applied to chemical plating. Moreover, the product is used as a food additive and an animal nutrition agent, applied to the manufacture of pharmaceutical products, as well as antioxidant and analytical reagent. As corrosion inhibitor; in nickel plating. Pharmaceutic aid (retards oxidation of ferrous salts).

Technology Process of Calciumphosphinat

There total 5 articles about Calciumphosphinat which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

phosphorus (12185-10-3) → tricalcium diphosphate + calcium bis(hypophosphite) (7789-79-9) + phosphan (7803-51-2)

Guidance literature:

With calcium hydroxide; In neat (no solvent); byproducts: H2; on boiling water bath;

Reference yield:

phosphorus (12185-10-3) → calcium bis(hypophosphite) (7789-79-9) + phosphan (7803-51-2)

Guidance literature:

With calcium hydroxide; In not given; byproducts: H2; by heating;

Reference yield:

calcium phosphide + water (7732-18-5) → calcium bis(hypophosphite) (7789-79-9)

Guidance literature:

With Ca₂P₂O₇; In water; decompn. of phosphorus lime with boiling water;; treatment of filtrate with CO2, crystn., drying at 100°C;;

upstream raw materials:

water

phosphorus

Downstream raw materials:

hydrogen bromide

nickel

gold

hydrogenchloride