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Hefei TNJ Chemical Industry Co., Ltd.

Selenious Acid, 7783-00-8, CAS 7783-00-8 manufacturer / supplier in China, offering Buy Lab Chemical Selenious Acid CAS 7783-00-8, Nickel Oxide Nickelous Oxide CAS 1313-99-1, Factory Suppliers Ethyleneurea CAS 120-93-4 and so on.

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Buy Lab Chemical Selenious Acid CAS 7783-00-8

FOB Price: US $1-10 / kg
Min. Order: 1 kg
Min. Order FOB Price
1 kg US $1-10/ kg
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Production Capacity: 2000mt/Year
Transport Package: 25kg/Fiber Drum
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: TNJ 7783-00-8
  • Appearance: Crystal
  • Acid Strength: Weak Acid
  • Quality: Tech Grade
  • Element: Polyatomic Acid
  • Volatility: Volatile Acid
  • Trademark: TNJ
  • Origin: China
  • Classification: Phosphoric Acid
  • Grade Standard: Reagent Grade
  • Kind: Organic Acid
  • Packaging: Fiber Drum
  • Oxidation: Oxidizing Acid
  • Stability: Labile Acid
  • Specification: 25KG/Fiber drum
  • HS Code: 2941400000
Product Description
Part name: Selenious acid
CAS No: 7783-00-8
M.F.: H2O3Se
M.W : 128.97


Colorless or white six square prismatic crystal. Deliquescence. The loss of one molecule of water at 100 DEG C produces two selenium. Sublimate. Capable of being oxidized to selenium by strong oxidizing agents such as ozone, hydrogen peroxide and chlorine gas. It can be reduced to selenium by most reducing agents such as iodic acid, sulfurous acid, sodium hypophosphite, hydroxylamine salt, hydrazine salt, hypophosphite and phosphite. Soluble in water and ethanol, insoluble in ammonia water. Relative density (d154) 3.004. Melting point 70 DEG C (decomposition). Toxic, median lethal dose (mice, veins) 11mG/kG.

Index nameSpec
AppearanceSix square crystal
Melting point,ºC70
relative density8.0066g/cm3


Alkaloid reagent. Reducing agent. Determination of titanium, zirconium and hydrogen fluoride. Spectral analysis. Oxidizing agent

25KG/Fiber drum

Sealed packing, and stored in dry and ventilated place, with edible chemicals, acids, easy (combustible) materials, storage. Attention to individual protection, no direct contact with the body. Skin (eye) contact, rinse with running water.

About us 

Hefei TNJ Chemical Industry Co.,Ltd., established in 2001, is a key chemical manufacturer and supplier in China.

In 2001, three young chemists from a local large state-owned chemical factory established TNJ Chemical by starting from producing PVP products. By taking advantage of technology innovation, TNJ made fast and steady development in PVP. Meanwhile, in order to further enhance comprehensive competence, TNJ begun to seek for products diversity and invested more chemical lines to meet market demands. Up to 2015, TNJ owns key products of more than 60 which covers four fields: Chemicals, Food, Pharmaceutical and Personal care.

Through over 15 years of development, TNJ has become an international and diversified modern chemical company. About 60% of our products are exported to overseas which turns over about 20 Million US dollars per year. In 2015, TNJ was awarded as the top 10 exporting giants in Anhui province.

TNJ always adheres to harmonious development. Beyond the economic success, TNJ focuses on environmental protection and social development. In TNJ, all aspects strictly comply with environmental protection standard and regulation set by State Environmental Protection Department of China. As a responsible company, TNJ contributes to social development by producing high-quality assured chemicals and creating more and more jobs. TNJ is also committed to charity annually including supporting students from poor families to continue education etc.

We believe in Better Chemicals, Better Future. We are on the way to become a responsible world-class chemical company through innovation and stable development.


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