CAS No.7789-79-9,Calcium hypophosphite Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	7789-79-9
Name:	Calcium hypophosphite

Formula:	CaH₄O₄P₂
Molecular Weight:	170.055
Synonyms:	Calcium dihydrogen hypophosphite;Calcium phosphinate (Ca(H2PO2)2);Phosphinic acid, calcium salt;Calcium phosphinate;Calcium hypophosphite (Ca(H2PO2)2);
EINECS:	232-190-8
Density:	2.243[at 20℃]
Melting Point:	decomposes [ALF93]
Boiling Point:	480℃[at 101 325 Pa]
Solubility:	Soluble in water. Practically insoluble in alcohol. Slightly soluble in glycerol
Appearance:	White powder and/or granules. Slight characteristic odor
Hazard Symbols:	F
Risk Codes:	11
Safety:	7-15
Transport Information:	UN 3180 4.1/PG 2
PSA:	99.54000
LogP:	0.81260

Synthetic route

: phosphorus

: 7732-18-5
water

: calcium oxide

: 7789-79-9
calcium bis(hypophosphite)

Conditions

Conditions	Yield
In water byproducts: PH3; addn. of 600 ml H2O to 120 g CaO, addn. of 20 g crushed, yellow P at boiling heat, boiling for 8-10 hours with replacement of vaporized H2O; introduction of CO2 into filtrate at 70-80°C; filtration after short boiling; vaporization till crystn.;; recrystn. from 3-4 parts H2O; yield 18-22 g pure Ca(PH2O2)2;;
In water byproducts: PH3; addn. of 600 ml H2O to 120 g CaO, addn. of 20 g crushed, yellow P at boiling heat, boiling for 8-10 hours with replacement of vaporized H2O; introduction of CO2 into filtrate at 70-80°C; filtration after short boiling; vaporization till crystn.;; recrystn. from 3-4 parts H2O; yield 18-22 g pure Ca(PH2O2)2;;

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: calcium phosphide

: 7732-18-5
water

: 7789-79-9
calcium bis(hypophosphite)

Conditions

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

: phosphorus

: calcium hydroxide

: 7789-79-9
calcium bis(hypophosphite)

Conditions

Conditions	Yield
In chloroform; water byproducts: PH3; stirring on slight warming (ground temp. 44°C, surface temp. 37°C) for ca 80 hours; after storage for 24 hours decantation of clear layer, saturating with CO2, filtration;; vaporization in vac.;;
In calcium hydroxide byproducts: PH3; addn. of small amt. of yellow P to boiling lime milk, till there is no formation of PH3;; removal of excessive Ca(OH)2 by introduction of CO2 at elevated temp. into filtrate; vaporization on air or over H2SO4 in vac.;;
In water byproducts: PH3; aq. Ca(OH)2 suspension; in closed vessel;;

: 12185-10-3
phosphorus

A: tricalcium diphosphate

B: 7789-79-9
calcium bis(hypophosphite)

C: 7803-51-2
phosphan

Conditions

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

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: 12185-10-3
phosphorus

A: 7789-79-9
calcium bis(hypophosphite)

B: 7803-51-2
phosphan

Conditions

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

: 7789-79-9
calcium bis(hypophosphite)

: 13477-34-4
calcium(II) nitrate

: dicalcium phosphate anhydrous

Conditions

Conditions	Yield
Stage #1: calcium bis(hypophosphite); calcium(II) nitrate In water Stage #2: at 200 - 252℃; under 33098.3 Torr; for 0.733333h;

: 7789-79-9
calcium bis(hypophosphite)

: 7726-95-6
bromine

: 10035-10-6, 12258-64-9
hydrogen bromide

Conditions

Conditions	Yield
With water without warming;

: 7789-79-9
calcium bis(hypophosphite)

: nickel dichloride

: 7440-02-0
nickel

Conditions

Conditions	Yield
With Na acetate In not given pH=5.0-5.5 (NaOH) , 92-93°C;

: ammonium carbonate

: 7789-79-9
calcium bis(hypophosphite)

: 7803-65-8
ammonium phosphinate

Conditions

Conditions	Yield
filtration, recrystn. from water or alc.;

: 7789-79-9
calcium bis(hypophosphite)

: copper(II) ion

: 57-13-6
urea

: poly(copper(II)-di-μ-hypophosphito-μ-urea)

Conditions

Conditions	Yield
In water Cu(II) : Ca(H2PO2)2 : (NH2)2CO = 1:1:2; evapn. of the soln. for several d at room temp.; elem. anal.;

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Chemistry

Product Name:Calcium hypophosphite(7789-79-9)
CAS No:7789-79-9
MF: CaH₄O₄P₂
MW: 166.02
Sensitive : Hygroscopic
Calcium hypophosphite(7789-79-9)`s Synonyms: Phosphinicacid,calciumsalt;CALCIUM HYPOPHOSPHITE;CALCIUM PHOSPHINATE;CALCIUM HYPOPHOSPHITE EXTRA PURE, DAC;Lime hypophosphite;CALCIUM HYPOPHOSPHITE TECHNICAL;CALCIUMHYPOPHOSPHITE,PURIFIED;Calcium hydrophosphite
Calcium hypophosphite(7789-79-9)`s Molecular Structure:

Uses

As corrosion inhibitor, in nickel plating, Calcium hypophosphite has been used as dietary supplement.

Toxicity Data With Reference

Skin：Calcium hypophosphite may cause skin irritation or burns. Extravasation of iv infusions of calcium salts may cause cellulitis-type lesions.
Ingestion：Calcium hypophosphite is more irritating than other calcium salts.

Consensus Reports

First Aid Measures :
Ingestion: Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Inhalation: If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Skin：Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
Eyes：If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Storage：Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling：All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Safety Profile

Hazard Codes : F
Risk Statements : 11
Safety Statements :7-15
RIDADR : UN 3180 4.1/PG 2
WGK Germany : 3

Specification

Personal Protection：Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.

Fire Fighting：Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.