Sodium iodide 99% NAI Industrial Grade CAS 7681-82-5
Product Description
Product name: Sodium Iodide
CAS No.: 7681-82-5
MF: NaI
Grade Standard: Food Grade, Industrial Grade, Medicine Grade, Reagent Grade
Purity: 99% Min
Appearance: White Crystalline or Powder
Application: Animal Feed Additive or Pharmacy
Sodium iodide is a white solid obtained through the reaction between sodium carbonate with hydroiodic acid and further evaporation of the solution. There are anhydrous, dihydrate and pentahydrate compound. It is the raw material for the manufacturing of iodine, for being used in medicine and photography. The acidic solution of sodium iodide, due to the generation of hydroiodic acid, displays reductive capability.
Product Properties
Sodium iodide is colorless cubic crystal or white crystalline powder. It is odorless with salty taste bitter. Absorbs moisture from air; slowly turns brown on exposure to air due to iodine evolved; density 3.67g/cm3; melts at 660°C; vaporizes at 1,304°C; vapor pressure 1 torr at 767°C and 5 torr at 857°C; very soluble in water, 178.7 g/100 mL at 20°C and 294 g/100 mL at 70°C; soluble in ethanol and acetone.
Application
Sodium iodide is widely used for halide exchange (Finkelstein reaction), for example in the conversion of an alkyl chloride, allyl chloride and arylmethyl chloride into their respective iodides, which are precursors for pharmaceutical and fine chemical products. They are used to ehnance the efficiency of the formation of Wittig adducts from less reactive chlorides and bromides. Appropriate prepartions find use as a nutrient supplement. Sodium iodide is used as the precursor to the control agent in ab initio emulsion polymerization. Sodium iodide finds use in the determination of dissolved oxygen in the modified Winkler method, synthesis of the fluorescent dye coppersensor-1 (CS1) for imaging labile copper pools in biological samples, and the cleavage of esters, lactones, carbamates and ethers in combination with chlorotrimethylsilane.
It can be used for cystography, retrograde urography, cholangiography via T-tube and fistula angiography of other parts.
Urography: 6.25% 100ml. Cystography: 6.25% 150ml. Retrograde pyelography: 12.5% 5~7ml. T-tube cholangiography: 12.5% 10~30ml. Fistula angiography: determine the injection site and dose according the state of the illness.
Sodium iodide was used as a component in the preparation of Mayer′s hematoxylin stain solution.
It may be used in the following processes:
Precursor in the polymerization of butyl acrylate.
Chaotropic agent in the extraction of DNA.
Deprotecting agent in the removal of N-tert-butyloxycarbonyl group in amino acids.
Water-soluble fluorescence quenching reagent.
Packing & Storage
Packing : Cardboard drum lined with plastic bag, 25KG/drum.
Storage : Sealed and stored in the dark.
Transportation Information
UN number: 3077
HazardClass : 9
PackingGroup : III
HS CODE: 28276000
Specification
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Quality inspection item
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Index value
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Alkalinity (as OH-) / (mmol / 100g)
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≤0.4
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Ba,%
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≤0.001
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Iodate (IO3)
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qualified
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Clarity test
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qualified
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Heavy metal (in Pb), %
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≤0.0005
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Calcium and magnesium (calculated as Ca), %
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≤0.005
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Nitrogen compound (N), %
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≤0.002
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Content (NaI), %
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≥99.0
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Iron (Fe), %
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≤0.0005
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Thiosulfate (S2O3)
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qualified
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Sulfate (SO4), %
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≤0.01
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Phosphate (PO4), %
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≤0.005
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Chloride and bromide as Cl), %
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≤0.03
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