| Identification | More | [Name]
Calcium iodate | [CAS]
7789-80-2 | [Synonyms]
CALCIUM IODATE
CALCIUM IODATE HYDRATE
autarite
calciumiodate(ca(io3)2)
iodicacid(hio3),calciumsalt
iodicacid,calciumsalt
Calcium iodate, pure, 98%
CALCIUM IODATE REAGENT
Calciumiodate,98%
CALCIUMIODATE,MONOHYDRATE,POWDER,FCC
Calcium iodate monohydrate min
Calcium iodate monohydrate, 99% min
calcium iodate food
Calcium iodate, 98%, pure
Bisiodic acid calcium salt
Diiodic acid calcium salt | [EINECS(EC#)]
232-191-3 | [Molecular Formula]
CaI2O6 | [MDL Number]
MFCD00036265 | [Molecular Weight]
389.88 | [MOL File]
7789-80-2.mol |
| Chemical Properties | Back Directory | [Appearance]
solid | [Melting point ]
540°C | [density ]
4.520 g/mL(lit.)
| [vapor pressure ]
0Pa at 25℃ | [solubility ]
ethanol: insoluble(lit.) | [form ]
Powder | [pka]
0[at 20 ℃] | [color ]
white | [Specific Gravity]
4.519 | [Odor]
odorless or sl. odor | [Stability:]
Stable. Incompatible with reducing agents, copper, aluminium, alcohols, sulfur, phosphorus. Oxidant-keep away from combustible materials. | [Water Solubility ]
slightly soluble | [Merck ]
14,1676 | [LogP]
-5.28 at 25℃ | [Uses]
Calcium 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. | [CAS DataBase Reference]
7789-80-2(CAS DataBase Reference) | [EPA Substance Registry System]
7789-80-2(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
O,Xi | [Risk Statements ]
R8:Contact with combustible material may cause fire.
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S17:Keep away from combustible material .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
S36:Wear suitable protective clothing .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
UN 1479 5.1/PG 2
| [WGK Germany ]
3
| [HazardClass ]
5.1 | [PackingGroup ]
II | [Safety Profile]
A nuisance dust. | [Hazardous Substances Data]
7789-80-2(Hazardous Substances Data) |
| Questions And Answer | Back Directory | [Chemical Properties]
Colorless 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.
| [Uses]
Used 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]
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 analysis]
Weigh 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].
| [Toxicity]
ADI: Not allowed to use (FAO / WHO, 2001).
GR.AS(FDA，§184.1206，2000)
|
| Hazard Information | Back Directory | [Flammability and Explosibility]
Nonflammable | [Purification Methods]
Crystallise it from water (100mL/g at 100o and 100mL/0.1g at 0o). [Bahl & Singh J Indian Chem Soc 17 397 1940.] |
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