Iodine AR
Iodine
Iodine, a diatomic molecule (I2), is an oxidizing agent and solutions of it are frequently used in chemical analyses. Iodine suffers from low solubility in water and its volatility makes it difficult to handle directly. Both these problems are overcome by the addition of an Iodide salt (usually Potassium Iodide) which forms a Triiodide (I3-) complex with the Iodine. The Triiodide complex is extremely soluble in water and has decreased volatility.
Iodine solutions are typically standardized with Sodium Thiosulfate solutions or Arsenic Trioxide. The equation for reaction with Sodium Thiosulfate is:
See the Tech Tip under Arsenic Trioxide for information on standardization with Arsenic Trioxide.
In order to minimize errors due to oxidation of the Iodide to Iodine, titrations involving Iodine solutions should be made in the pH range of 4 - 8, and contact with air should be minimized. Because of this oxidation tendency as well as the volatility of this element even in the Triiodide form, Iodine solutions should be restandardized periodically for increased accuracy, especially after the bottle has been opened. Starch forms an intensely blue complex with Triiodide and is almost always used as the indicator when the endpoint is not determined instrumentally.
Iodine solutions can also be used to determine Sulfite, Sulfur Dioxide, or Sulfide, according to the following reactions:
In these reactions, it is better to add the Sulfite or Sulfide ion solution to an excess of acidified standard Iodine solution and then back-titrate the excess Iodine with standard Sodium Thiosulfate solution. This avoids loss of the analyte due to volatilization and thus leads to increased accuracy.
CASR No. : [7553 – 56 – 2]
EC-No. : 231-442-4
HS-No. : 2801 20 00
RTECSNN1575000
Poison class : CH ) 2
Max. Allowable Concentration ( MAK ), Air : 1.1 mg / m3
LD 50 oral rat : 14 mg / kg
Packing category : G
Road / Rail6.1 / 67 b
IMDG-Code61 / II UN 3290
IATA / DGR6.1 8 II UN 3290 CAO 615
PAX 613
Merck-Index10, 4881
Mol. Formula : I2
Mol. Weight253.81
Specific Density, 20 0C4.93 g / cm3
Bulk Density~ 2100 kg / m3
Melting Range114 0C
Boiling Point185 0C
Vapour Pressure, 25 0C0.41 hPa
Solubility in H2O, 20 0C29 mg per 100 ml
pH value ( saturated solution, H2O, 20 0C )~ 5.4
Atmospheric Susceptibilityslow sublimation
Iodine Derivatives Manufacturer in India
Iodine is the heaviest and the rarest of stable halogens that can be found on the crust of earth. Iodine is mostly used in nutrition. About fifty percent of all iodine produces and manufactured worldwide is used to form Organoiodine compounds.
Iodine deficiency in human body is the number one cause of preventable mental retardation and thyroid problems. Certain regions and especially coastal regions have iodine naturally in the soil. But it is rare in most of the Earth’s surface. Therefore iodine is added in small quantities in salt to provide the body with the much needed iodine. Generally, Potassium iodide or Potassium iodate is added to table/common salt, in order to prevent problems caused by iodine deficiency.
Iodine has several applications other than iodization of salt. It has a plethora of industrial as well as medical applications and is also used to provide nutrition to animals. The importance of application of iodine varies and some of the major uses of iodine derivatives are in colourants, dyes and pigments, animal nutrition products, catalysts, stabilizers, disinfectants and antiseptics, pharmaceutical, and photography.
Iodine supplier and exporter from Mumbai, Kandla, Chennai, Kolkata, Visakhapatnam, Dubai, Sharjah, Abu Dhabi, Ajman, Fujairah, Muscat, Oman and We are also pioneer as a Iodine supplier in Turbhe, Pawane, Mahape, Rabale, Taloja, Navi Mumbai - MIDC. RX MARINE INTERNATIONAL is a leading Iodine derivatives manufacturer supplier in India.
Other Valuable Iodine and its derivative products :
Sr. No.Product Name CAS Number EC Number
1.3-5 – Di Iodosalicylic Acid 133-91-5 205-124-0
2.Aluminium Iodide 7784-23-8 232-054-8
3.Ammonium Iodide 12027-06-4 234-717-7
4.Arsenic Iodide 7784-45-4 232-068-4
5.Barium Iodide 13718-50-8 237-276-9
6.Barium Mercuric Iodide 10048-99-4 231-831-9
7.Cadmium Iodide 7790-80-9 232-223-6
8.Calcium Iodate 7789-80-2 232-191-3
9.Calcium Iodide 10102-68-8 233-276-8
10.Clioquinol 130-26-7 204-984-4
11.Copper Iodide 7681-65-4 231-674-6
12.Cuprous Mercuric Iodide 13876-85-2 237-634-4
13.Ethyl Iodide 75-03-64 232-191-3
14.Ethylenediamine Dihydroiodide 1774-47-6 231-442-4
15.Hydriodic Acid 57% 10034-85-2 233-109-9
16.Iodic Acid 7782-68-5 231-962-1
17.Iodine 7553-56-2 231-442-4
18.Iodine Monochloride 7790-99-0 232-236-7
19.Iodophor 111453-42-0
20.Iohexol 66108-95-0 266-164-2
21.Lithium Iodide 10377-51-2 233-822-5
22.Magnesium Iodide 10377-58-9 233-825-1
23.Mercuric Iodide 7774-29-0 231-873-8
24.Methyl Iodide 7553-56-2 200-819-5
25.Periodic Acid 10450-60-9 233-937-0
26.Potassium Iodate FCC 12027-06-4 231-831-9
27.Potassium Iodide 7681-11-0 231-659-4
28.Potassium Mercuric Iodide 7783-33-7 231-990-4
29.Potassium Metaper Iodate 7790-21-8 232-196-0
30.Potassium Tri Iodide Monohydrate12298-68-9 235-567-5
31.Povidone Iodine 25655-41-8 215-034-3
32.Sodium Metaper Iodate 7790-28-5 232-197-6
33.Sodium Iodate 7681-55-2 231-672-5
34.Sodium Iodide 7681-82-5 231-679-3
35.Tetra Butyl Ammonium Iodide 311-28-4 206-220-5
36.Tetra Ethyl Ammonium Iodide 68-05-3 200-676-9
37.Tetra Methyl Ammonium Iodide 75-58-1 200-881-3
38.Tri Methyl Sulphonium Iodide 2181-42-2 218-555-4
39.Tri Methyl Sulphoxonium Iodide 1774-47-6 217-204-2
40.Zinc Iodide 10139-47-6 233-396-0
