Is Cano3 Soluble In Water

Calcium nitrate
Names



Other names Kalksalpeter, Norgessalpeter, nitrocalcite, Norwegian salpeter, lime nitrate
Identifiers
CAS Number	10124-37-5 ^Y 13477-34-4 (tetrahydrate)^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:64205
ChEMBL	ChEMBL3183960
ChemSpider	23336 ^Y
ECHA InfoCard	100.030.289
EC Number	233-332-i
PubChem CID	24963
RTECS number	EW2985000
UNII	NF52F38N1N ^Y O8T8H4NBBR (tetrahydrate)^Y
UN number	1454
CompTox Dashboard (EPA)	DTXSID1039719
InChI InChI=1S/Ca.2NO3/c;2ii-i(iii)iv/q+two;2-1^Y Key: ZCCIPPOKBCJFDN-UHFFFAOYSA-N^Y InChI=ane/Ca.2NO3/c;2ii-1(3)4/q+2;2-1 Primal: ZCCIPPOKBCJFDN-UHFFFAOYAF
SMILES [Ca+2].[O-][Due north+]([O-])=O.[O-][Due north+]([O-])=O
Backdrop
Chemical formula	Ca(NO_iii)_ii
Molar mass	164.088 grand/mol (anhydrous) 236.15 g/mol (tetrahydrate)
Appearance	colorless solid hygroscopic
Density	2.504 g/cmⁱⁱⁱ (anhydrous) 1.896 g/cm³ (tetrahydrate)
Melting betoken	561 °C (i,042 °F; 834 K) (anhydrous) 42.7 °C (109 °F; 316 M) (tetrahydrate)
Humid point	decomposes (anhydrous) 132 °C (270 °F; 405 K) (tetrahydrate)
Solubility in water	anhydrous: 1212 g/50 (20 °C) 2710 g/L (40 °C) tetrahydrate: 1050 g/50 (0 °C) 1290 g/50 (20 °C) 3630 g/L (100 °C)
Solubility	soluble in ammonia nearly insoluble in nitric acid
Solubility in ethanol	51.four thousand/100 thousand (20 °C) 62.nine g/100 g (twoscore °C)^[i]
Solubility in methanol	134 1000/100 k (10 °C) 144 thousand/100 m (40 °C) 158 g/100 grand (threescore °C)^[1]
Solubility in acetone	xvi.8 m/kg (xx °C)^[1]
Acerbity (pK _a)	6.0
Magnetic susceptibility (χ)	-45.9·10^−six cm³/mol
Structure
Crystal construction	cubic (anhydrous) monoclinic (tetrahydrate)
Hazards
GHS labelling:
Pictograms
Indicate discussion	Danger
Hazard statements	H272, H302, H315, H319
Precautionary statements	P210, P220, P221, P264, P270, P280, P301+P312, P302+P352, P305+P351+P338, P310, P321, P330, P332+P313, P337+P313, P362, P370+P378, P501
NFPA 704 (burn diamond)	ii 0 1 OX
Flash bespeak	Non-flammable
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	302 mg/kg (rat, oral)
Safety data sheet (SDS)	ICSC 1037
Related compounds
Other anions	Calcium sulfate Calcium chloride
Other cations	Magnesium nitrate Strontium nitrate Barium nitrate
Except where otherwise noted, information are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Due northverify (what is^{Y N} ?) Infobox references

Chemical chemical compound

Calcium nitrate, too chosen Norgessalpeter (Norwegian salpeter), is an inorganic compound with the formula Ca(NO₃)_ii(H₂O)_ten. The anhydrous chemical compound, which is rarely encountered, absorbs moisture from the air to requite the tetrahydrate. Both anhydrous and hydrated forms are colourless salts. Calcium nitrate is mainly used as a component in fertilizers, simply it has other applications. Nitrocalcite is the proper noun for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts physical or limestone in a dry surroundings as in stables or caverns. A diverseness of related salts are known including calcium ammonium nitrate decahydrate and calcium potassium nitrate decahydrate.^[two]

Production and reactivity [edit]

Norgessalpeter was synthesized at Notodden, Norway in 1905 past the Birkeland–Eyde process. Most of the world's calcium nitrate is now fabricated in Porsgrunn.

It is produced by treating limestone with nitric acid, followed by neutralization with ammonia:

CaCO₃ + 2 HNO₃ → Ca(NO₃)_ii + CO₂ + H₂O

It is besides an intermediate product of the Odda Process:

Ca_v(PO₄)₃OH + 10 HNO₃ → 3 H_iiiPO_four + 5 Ca(NO₃)_two + H₂O

Information technology can also exist prepared from an aqueous solution of ammonium nitrate, and calcium hydroxide:

ii NH₄NO_three + Ca(OH)₂ → Ca(NO_iii)₂ + 2 NH₄OH

Similar related alkaline earth metallic nitrates, calcium nitrate decomposes upon heating (starting at 500 °C) to release nitrogen dioxide:^[2]

2 Ca(NO₃)_two → 2 CaO + 4 NO₂ + O₂ ΔH = 369 kJ/mol

Applications [edit]

Employ in agriculture [edit]

The fertilizer class (fifteen.v-0-0 + 19% Ca) is pop in the greenhouse and hydroponics trades; information technology contains ammonium nitrate and water, as the "double salt" ${\ce {5Ca(NO3)2.NH4NO3.10H2O}}$ . This is chosen calcium ammonium nitrate and often the name calcium nitrate prill is used as it ever comes in a prilled (granular) form. Formulations defective ammonia are as well known: Ca(NO₃)_two·4H₂O (11.9-0-0 + sixteen.nine Ca) and the water-complimentary 17-0-0 + 23.6 Ca. A liquid formulation (9-0-0 + 11 Ca) is besides offered. An anhydrous, air-stable derivative is the urea complex Ca(NO₃)₂·iv[OC(NH_ii)₂], which has been sold as Cal-Urea.

Calcium nitrate is also used to control sure plant diseases. For example, dilute calcium nitrate (and calcium chloride) sprays are used to control bitter pit and cork spot in apple trees.^[3]

Waste matter water treatment [edit]

Waste water handling unit

Calcium nitrate is used in waste water pre-conditioning for smell emission prevention. The waste water pre-workout is based on establishing an anoxic biology in the waste water organization. In the presence of nitrate, the metabolism for sulfates stops, thus preventing formation of hydrogen sulfide.^[iv] Additionally easy degradable organic matter is consumed, which otherwise can cause anaerobic conditions downstream as well as odour emissions itself. The concept is also applicative for surplus sludge treatment.^[five]

Physical [edit]

Calcium nitrate is used in fix accelerating concrete admixtures. This utilise with concrete and mortar is based on two furnishings. The calcium ion accelerates germination of calcium hydroxide and thus precipitation and setting. This effect is used also in common cold weather concreting agents as well as some combined plasticizers.^[6] The nitrate ion leads to formation of iron hydroxide, whose protective layer reduces corrosion of the concrete reinforcement.^[7]

Latex coagulant [edit]

Calcium nitrate is a very common coagulant in latex production, especially in dipping processes. Dissolved calcium nitrate is a role of the dipping bath solution. The warm former is dipped into the coagulation liquid and a thin moving picture of the dipping liquid remains on the former. When at present dipping the old into the latex the calcium nitrate volition break up the stabilization of the latex solution and the latex will coalesce on the old.^[8] ^[9]

Cold packs [edit]

The dissolution of calcium nitrate tetrahydrate is highly endothermic (cooling). For this reason, calcium nitrate tetrahydrate is sometimes used for regenerable cold packs.^[two]

Molten salts for oestrus transfer and storage [edit]

Calcium nitrate tin can be used every bit a role of molten common salt mixtures. Typical are binary mixtures of calcium nitrate and potassium nitrate or ternary mixtures including also sodium nitrate.^[ten] ^[xi] ^[12] Those molten salts can be used to replace thermo oil in concentrated solar power plants for the heat transfer, just mostly those are used in rut storage.

References [edit]

^ ^a ^b ^c Anatolievich, Kiper Ruslan. "Properties of substance: calcium nitrate". Retrieved 2015-09-09 .
^ ^a ^b ^c "Nitrates and Nitrites". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. 2002. doi:ten.1002/14356007.a17_265.
^ "Bitter Pit and Cork Spot". University of Wisconsin-Extension Cooperative Extension. UW-Madison, Dept of Horticulture.
^ Bentzen, G; Smith, A; Bennett, D; Webster, N; Reinholt, F; Sletholt, Eastward; Hobson, J (1995). "Controlled dosing of nitrate for prevention of H_iiSouth in a sewer network and the effects on the subsequent treatment process". H2o Science and Technology. 31 (seven): 293. doi:10.1016/0273-1223(95)00346-O.
^ Einarsen, A.Yard.; ÆeesØy, A.; Rasmussen, A. I.; Bungum, Southward.; Sveberg, M. (2000). "Biological prevention and removal of hydrogen sulphide in sludge at Lillehammer Wastewater Treatment Constitute". H2o Sci. Technol. 41 (6): 175–187. doi:ten.2166/wst.2000.0107.
^ Justines, H. (2010) "Calcium Nitrate as a Multifunctional Concrete Admixture" Concrete Magazine, Vol 44, No. ane, p.34. ISSN 0010-5317
^ Al-Amoudi, Omar S.Baghabra; Maslehuddin, Mohammed; Lashari, A.N; Almusallam, Abdullah A (2003). "Effectiveness of corrosion inhibitors in contaminated concrete". Cement and Concrete Composites. 25 (iv–5): 439. doi:10.1016/S0958-9465(02)00084-7.
^ Northward. C. Dafader, Y. Northward. Jolly, G. Due east. Haque, F. Akhtar & M. U. Ahmad: The Role of Coagulants on the Preparation of Dipped film from Radiation Vulcanized Natural Rubber Latex. Polymer-Plastics Technology and Engineering. Book 38, Issue 2, 1999, pages 267-274. Online: http://world wide web.tandfonline.com/doi/abs/10.1080/03602559909351576
^ "Rubbercare - Choice Latex and Nitrile Gloves from a Trusted Manufacturer".
^ "Potassium calcium nitrate promising for CSP heat storage – Solar Novus Today".
^ European Patent Awarding EP0049761: Utilise of a ternary mixture of salts as a heat transmitting medium and/or as a heat storage medium. http://www.freepatentsonline.com/EP0049761A1.html
^ WIPO Patent Awarding WO/2014/044652: Use of a calcium potassium nitrate salt for the industry of a rut transfer fluid. http://www.freepatentsonline.com/WO2014044652A1.html