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Calcium iodate

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CAS:7789-80-2
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Calcium iodate Basic information
Chemical Properties Uses Preparation Water solubility (g/100ml) Content analysis Toxicity
Product Name:Calcium iodate
Synonyms:CALCIUM IODATE, REAGENTCALCIUM IODATE, REAGENTCALCIUM IODATE, REAGENTCALCIUM IODATE, REAGENT;Calcium iodate monohydrate min;Calcium iodate monohydrate, 99% min;calcium iodate food;Calcium iodate, 98%, pure;Bisiodic acid calcium salt;autarite;calciumiodate(ca(io3)2)
CAS:7789-80-2
MF:CaI2O6
MW:389.88
EINECS:232-191-3
Product Categories:CalciumMetal and Ceramic Science;Calcium Salts;Inorganic Salts;Salts;Synthetic Reagents;metal iodate;-;Inorganics;Feed Grade Amino Acids
Mol File:7789-80-2.mol
Calcium iodate Structure
Calcium iodate Chemical Properties
Melting point 540°C
density 4.520 g/mL(lit.)
solubility ethanol: insoluble(lit.)
form Powder
Specific Gravity4.519
color white
Water Solubility slightly soluble
Merck 14,1676
Stability:Stable. Incompatible with reducing agents, copper, aluminium, alcohols, sulfur, phosphorus. Oxidant - keep away from combustible materials.
CAS DataBase Reference7789-80-2(CAS DataBase Reference)
EPA Substance Registry SystemIodic acid (HIO3), calcium salt(7789-80-2)
Safety Information
Hazard Codes O,Xi
Risk Statements 8-36/37/38
Safety Statements 17-26-37/39-36-16
RIDADR UN 1479 5.1/PG 2
WGK Germany 3
HazardClass 5.1
PackingGroup II
Hazardous Substances Data7789-80-2(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Calcium iodate English
SigmaAldrich English
ACROS English
ALFA English
Calcium iodate Usage And Synthesis
Chemical PropertiesColorless Orthorhombi crystal or white crystal. Odorless. Boiling point: 783 ℃. Relative density: 2.55. Soluble in nitric acid, slightly soluble in water. Six crystal water will be dehydrated at 40 ° C and it will become anhydrous.
UsesUsed as: 
  • Iodine additives for premix in feed industry:  
  • Quality enhancers, preservatives in food industry; 
  • Mouthwash preparation, iodine substitutes and nutritional supplements trace elements and deodorant in pharmaceutical industry;
  • Wheat flour treatment;  
  • Dough conditioner; 
  • Quick-acting oxidant to the dough when making bread by being added to wheat flour.
Preparation
  • Direct synthesis process
Pass through the chlorine into the mixture of iodine and water at 10-15 ° C until the iodine is completely transformed into iodic acid, and then add calcium hydroxide to adjust the pH up to 7. Wash the formed precipitate and dry it at 110 ° C to obtain the finished product.
  • Complex decomposition process 
Put potassium iodate into a reactor containing distilled water, stir and add calcium nitrate solution slowly to react to form calcium iodate and potassium nitrate reaction solution, then filter off to remove potassium nitrate. Then add arsenic removal agent and heavy metal agent to purify the solution,  and filter off to remove the arsenic and heavy metals and other impurities.  Then get the filtrate to be concentrate by evaporation, cooled and crystallized, centrifugated, dried,  and we can obtain the finished food calcium iodate. Ca (NO3) 2 • 4H2O + 2KIO3 + 2H2O → Ca (IO3) 2 • 6H2O + 2KNO3
Water solubility (g/100ml)Grams that dissolve in per 100 ml of water at different temperatures (° C):
9×10-2/30℃;0.24g/20℃;0.38g/30℃;0.52g/40℃
0.65g/60℃;0.66g/80℃;0.67g/90℃
Content analysisWeigh about 600mg of sample accurately, and then dissolve them in the mixed solution of 10mL of 70% perchloric acid and 10ml of water. Heat it to help dissolution If necessary, and dilute with water to 250.0ml. Take 50.0ml of this solution and put it into a 250ml Erlenmeyer flask, add 1ml of 70% perchloric acid and 5g of potassium iodide, stoppered, shake gently and then leave it to stand still for 5min. Then titrate with 0.1mol / L sodium thiosulfate, and then add at a small amount of starch test solution (TS-235 when nearing the end. 0.1mol / L sodium thiosulfate per mL equals to 3.398mg of calcium iodate [Ca (IO3)2·H2O].
ToxicityADI:  Not allowed to use (FAO / WHO, 2001).
GR.AS(FDA,§184.1206,2000)
Chemical Propertiessolid
UsesCalcium Iodate is a source of iodine that is a white powder of slight solubility in water, but greater solubility in water containing iodides or amino acids. it is more stable than the iodide form. it is used as a dough conditioner in bread and is a source of iodine in table salts.
UsesCalcium iodate (also called Lautarite) is used as an oxidant added to lotions and ointments as an antiseptic and deodorant. It is also used in the food industry in animal feed, and the manufacture of disinfectants.The forms of iodine most commonly used in animal feed are calcium iodate, ethylenediamine dihydriodide (EDDI), and potassium iodide. Calcium iodate is usually the most stable source of iodine. All three major sources of iodine (calcium iodate, EDDI, and potassium iodide) are roughly equivalent in biological availability.
PreparationThis composition occurs as a mineral “Lautarite (Calcium Iodate·Monohydrate). It can be prepared by the reaction of iodic acid upon the carbonate:
CaCO3 +2HIO3→Ca(IO3)2 +CO2+H2O
The monohydrate formed has limited solubility in water and can be s
Safety ProfileA nuisance dust.
Purification MethodsCrystallise it from water (100mL/g at 100o and 100mL/0.1g at 0o). [Bahl & Singh J Indian Chem Soc 17 397 1940.]
Tag:Calcium iodate(7789-80-2) Related Product Information
Iodic acid CALCIUM IODATE HYDRATE,Calcium iodate monohydrate, 99+% CALCIUM IODATE HYDRATE, PURE CALCIUM IODATE MONOHYDRATE Calcium iodate hexahydrate, 98% CALCIUM IODATE HYDRATE, 98%, PURE PERIODIC ACID Calcium iodate Hydriodic acid Calcium chloride Calcium phosphate Calcium dobesilate CALCIUM Calcium nitrate Calcium carbide Calcium Propionate Calcium gluconate Silicic acid, calcium salt