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Iodine Crystals CAS 7553-56-2

Product Name: Iodine
CAS Number: 7553-56-2
Molecular Formula: I2
Molecular Weight: 253.81 g/mol
Appearance: Dark purple solid
Melting Point: 113 °C (lit.)
Boiling Point: 184 °C (lit.)

Packaging Details:

Aluminum packages, carton box, wooden box, customized packaging

Delivery Time:

3-5 Days: EMS, Fedex, UPS, DHL, Purolator, Hermes, Estafeta, J&T Express(MX)
7-15 days: DPD, GLS, CANADA POST, HK POST, Royal Mail


Germany, Australia, Russia

Payment Terms:

T/T, Western Union, Cryptocurrency, Money Gram, Alibaba (credit card, paypal), Forum Escrow


Iodine Crystals CAS 7553-56-2

Iodine (CAS 7553-56-2) in its solid state is a distinctive dark purple-black crystalline substance. It is a chemical element with the symbol “I” and atomic number 53. It is a dark purple-black solid that readily sublimes into a violet-blue gas, giving off a distinctive smell. Iodine Crystals CAS 7553-56-2 is primarily used in the following applications:

Disinfectant: Iodine has been used as an antiseptic and disinfectant due to its antimicrobial properties. Iodine tinctures and solutions are commonly used for wound care and medical disinfection.
Pharmaceuticals: Iodine compounds are used in the production of various pharmaceuticals, including iodine supplements and thyroid medications.
Laboratory Reagent: Solid iodine is utilized as a reagent in chemical reactions and laboratory experiments, particularly those involving redox reactions and organic synthesis.

Iodine Crystals Basic Parameter Information:

Product Name:Iodine Crystals
CAS NO:7553-56-2
Molecular Formula:I2
Molecular Weight:253.809
Melting Point:113 °C (lit.)
Boiling Point:184 °C (lit.)
Density:1.32 g/mL at 25 °C
Appearance:purple black spherical
Storage:Store in a cool, ventilated, dark warehouse. Keep away from heat and fire
Solubility:Slightly soluble in water, insoluble in sulfuric acid. Soluble in organic solvents

Physical Characteristics:

Appearance: Iodine Crystal is typically found as shiny, dark purple-black crystals that may resemble flakes or a fine powder.
Sublimation: Iodine undergoes sublimation at standard atmospheric pressure and temperature, transitioning directly from a solid to a violet-blue gas without melting into a liquid state.

Chemical Properties:

Reactivity: Iodine is chemically reactive and can form compounds with various elements and molecules, especially when heated or in the presence of other reactive substances.
Color Change: When heated or sublimated, solid iodine releases a violet-blue vapor that gives off a distinctive and recognizable odor.


1. Mainly used in the manufacture of iodides, pesticides, feed additives, dyes, tinctures of iodine, test strips, medicines, etc.
2. Used as electronic industry materials and high-purity reagents.
3. For volumetric analysis and colorimetric analysis.
4. Used as the basic raw material for the manufacture of inorganic iodides and organic iodides. Mainly used in medical and health care, manufacturing various iodine preparations, bactericides, disinfectants, deodorants, analgesics and antidote for radioactive substances. Antibacterial agents used in industry for synthetic dyes, smoke suppressants, photographic emulsions and cutting oil emulsions;
5. It is used to manufacture electronic instruments such as single crystal prisms, optical instruments such as polarizers, glass that can transmit infrared rays, etc.;
6. For leather and specialty soaps. Iodine is a good catalyst for organic synthesis reactions such as methylation, isomerization, and dehydrogenation;
7. As a separating agent for alkanes and alkenes;
8. As stabilizer for rosin, tall oil and other wood products;
9. As refining agent for high-purity zirconium, titanium, hafnium, silicon and germanium;
10. To prepare equivalent solvent, determine iodine value, and calibrate the concentration of sodium thiosulfate solution.


Handling: Iodine Solid should be handled with care, as direct skin contact may cause irritation. It’s advisable to use gloves and proper protective equipment when working with solid iodine.
Storage: Store solid iodine in a cool, dry place away from direct sunlight and incompatible substances. It should be kept in well-sealed containers to prevent sublimation and vapor release.
Note that iodine and its compounds have important industrial, medical, and scientific applications. Proper safety measures and precautions should always be taken when working with iodine or any iodine-containing substances.

Wuhan Reachem’s comprehensive product lineup covers various chemical and pharmaceutical raw materials, ensuring customers have access to high-quality products for their specific applications. Whether it’s API, pharmaceutical intermediates, organic compounds, Wuhan Reachem is dedicated to meeting customer needs with top-notch products, professional services, and timely deliveries. With a focus on safety and quality, Wuhan Reachem stands as a reliable and trustworthy partner in the chemical and pharmaceutical industries.


We currently have warehouses in the USA/Canada/Australia/Russia/Germany which support pick-up or use domestic delivery. We also have another shipping method as below:
UK: UPS/Hermes/Royal Mail
Mexico:Mexico Estafeta /J&T Express(MX)
We will choose the most suitable shipping method according to different destination countries or your requirements.
7-15 days delivery, guarantee buyer 100% receive the goods, if there is any customs problem, we promise to resend it for free.



Powder and solid: Bulk powder is packaged in double-layer aluminium thin bag deodorant packaging, and small goods are packaged in plant extract animal food packaging bags.
Liquids and oils: Liquids are changed to general product names, sealed packaging, with blisters to prevent leakage.
We have standard packaging, and can also be customized according to your requirements.

For more details, please refer to SHIPPING & PACKING


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