Potassium iodide CAS#7681-11-0

Potassium iodide CAS#7681-11-0

Basic Information

Excellent Solubility and Iodine Complexing Ability: Highly soluble in water and various organic solvents, and capable of dissolving iodine to form triiodide (I₃⁻), making it valuable in analytical and chemical applications.


Effective Iodine Supplement Source: Widely used as a non-radioactive iodine source in iodized salt to help prevent goiter and other iodine deficiency disorders.


Protective Thyroid Support: Can block the absorption of radioactive iodine (I-131) by the thyroid, offering protective benefits in radiation exposure scenarios.


Functional Biological Activity: Acts as a hydroxyl radical scavenger and expectorant, contributing to its pharmaceutical and therapeutic relevance.

Can't Find The Product You Need?

Tell Us Your Product Requirements, Specifications And Target Industry, Our Professional Team Will Reply You Within 24 Hours.

Contact us

Products Center

product description

Product Description of Potassium iodide CAS#7681-11-0

Potassium iodide is white crystal, granule or powder with a strong bitter saline taste. It gradually turns yellow under strong light due to photochemical decomposition releasing trace free iodine. It is easily soluble in water, alcohol, acetone and glycerol, and slightly soluble in ether and ammonia.

It is prepared by reacting iodine with hot potassium hydroxide solution, then separated from iodate by fractional crystallization. Its aqueous solution can dissolve iodine to form brown triiodide ions (I3−).
Widely used as an analytical reagent and in photography, it is also added to table salt to prevent goiter and other iodine deficiency-related diseases.


Product Application of Potassium iodide CAS#7681-11-0

Potassium iodide was firstly used as the main halide in Talbot’s calotype process, and later adopted in albumen-on-glass and wet collodion techniques. It also functions as a secondary halide in silver bromide gelatin emulsions. Besides, it is applied in animal feed, catalytic preparation, photographic chemicals and sanitation fields.

Industrially, it is produced by the reaction of potassium hydroxide with iodine, followed by water recrystallization for purification.

Products Center

Product Information

Parameters


Melting point681 °C (lit.)
Boiling point184 °C(lit.)
bulk density1500kg/m3
density1.7 g/cm3
vapor density9 (vs air)
vapor pressure0.31 mm Hg ( 25 °C)
refractive index1.677
Fp1330°C
storage temp.2-8°C
solubilityH2O: 1 M at 20 °C, clear, colorless
pka0.06[at 20 ℃]
formparticles (round)
colorWhite
Specific Gravity3.13
Odorodorless
PH6.0-9.0 (25℃, 1M in H2O)
Flame ColorViolet or light purple
biological sourcerabbit
Water Solubility1.43 kg/L
SensitiveHygroscopic
Merck147643
Exposure limitsACGIH: TWA 0.01 ppm
Dielectric constant5.12
BCS Class1
Stability:Stable. Protect from light and moisture. Incompatible with strong reducing agents, strong acids, steel, aluminium, alkali metals, brass, magnesium, zinc, cadmium, copper, tin, nickel and their alloys.
Cosmetics Ingredients FunctionsANTIMICROBIAL
InChIKeyNLKNQRATVPKPDG-UHFFFAOYSA-M
LogP-0.958 at 25℃
CAS DataBase Reference7681-11-0(CAS DataBase Reference)
NIST Chemistry ReferencePotassium iodide(7681-11-0)
EPA Substance Registry SystemPotassium iodide (7681-11-0)
Absorptioncut-off at 273nm in H2O at 1M


Safety Information


Hazard CodesXn
Risk Statements26
Safety Statements22-36/38
WGK Germany1
RTECSTT2975000
F10
TSCATSCA listed
HS Code28276000
Hazardous Substances Data7681-11-0(Hazardous Substances Data)
ToxicityApprox LD i.v. in rats: 285 mg/kg (Hildebrandt)


Products Center

Factory Showcase

拼图_美图设计室-(1)

Products Center

Shipping And Transportation

拼图_美图设计室

Products Center

FAQ

1. What kind of company is Bohai New Materials?
Bohai New Materials (Tianjin) Co., Ltd. is a foreign trade company specializing in the international trade of chemical products, located in the Binhai New Area of ​​Tianjin. Leveraging the strategic location of Tianjin Port, the company provides one-stop procurement and export services to global clients for a wide range of products, including plastic resins, basic chemical raw materials, fine chemicals, chemical fiber raw materials, and inorganic chemicals.


2. Which markets does the company serve?
Our products are primarily exported to Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), the Middle East (UAE, Saudi Arabia), Africa (Nigeria, Kenya), as well as Europe and the Americas.


3. Does the company have the qualifications to export hazardous chemicals?
Yes. We hold a valid license for the operation of hazardous chemicals and are well-versed in the export declaration, packaging, documentation, and transportation requirements for various types of hazardous goods. We are capable of handling the export of Class 3, Class 5, Class 8, and Class 9 hazardous chemicals.


4. What are the company's main products?
Our core product portfolio includes:
Plastic resins: PP, PE, PVC, ABS, PC, POM, etc.
Basic chemical raw materials: Soda ash, caustic soda, titanium dioxide, methanol, styrene, ethylene glycol, PTA, etc.
Fine chemicals: Pharmaceutical intermediates, pesticide intermediates, chemical additives, solvents, surfactants.
Chemical fiber raw materials: Polyester filament, polyester staple fiber, polyester chips (PET).
Inorganic chemicals: Calcium carbonate, talc powder, sodium sulfate, calcium chloride, magnesium chloride, etc.
Others: Paraffin wax, white oil, petroleum jelly (Vaseline), rubber, water treatment chemicals, etc.
If you have specific product requirements, please feel free to contact us; we will quickly source high-quality products to meet your needs.


5. How can I obtain a product quote? What information is required?
You can contact us via our official website, by phone, or by email. To ensure a quick and accurate quote, please provide the following details: product name and specifications, target purchase quantity, destination port, and desired delivery time. Please also inform us of any special packaging or testing requirements.

Products Center

Contact Us

Submit

Products Center

Recommendation