The properties and uses of arsenic sulfide As2S3

 Overview of arsenic sulfide As2S2

Arsenic sulfide is an inorganic compound with the chemical formula As2S3, also known as arsenic sulfide. This ore is called orpiment, a common realgar (arsenic disulfide) mineral, and a common "miner". Pure arsenic trisulfide is lemon yellow and belongs to the monoclinic crystal system. It is composed of (As2S3)N layered crystal lattice. It melts into a red liquid at 300°C and does not decompose when it boils at 707°C. Arsenic trisulfide is insoluble in water and mineral acids, but soluble in sodium sulfide, alkali metal hydroxides and carbonates. poisonous. Na3ASS3 is called sodium thioarsenite, and it can also exist in the form of impregnated NaASS2. Sulfurarsenic acid is unstable and easily decomposes.

Arsenic trisulfide is a semiconductor with a direct band gap of 2.7 eV. Its wide band gap makes it transparent to infrared light between 620 nm and 11 μm.

Realgar belongs to the monoclinic crystal system, and the crystal group is P2(1)/n. The crystals are orange-red, transparent to translucent realgar crystals. The columnar crystals are of varying lengths, accompanied by thick and thin, and grow in multiple directions. The crystal is diamond luster, and the fracture is resin luster. Single crystals are small columnar and needle-shaped, but natural single crystals are relatively rare.

{xunruicms_img_title}

As2S3 exists in two forms: crystalline and amorphous. Both forms have a polymer structure composed of triangular pyramid As(III) centers connected by sulfide centers. The sulfide center has dual coordination with two arsenic atoms. In the crystalline form, the compound has a corrugated plate structure. The bond between the sheets is composed of van der Waals forces. Crystalline forms are usually found in geological samples. Amorphous As2S3 has no layered structure, but has a high degree of crosslinking.

Application of arsenic sulfide As2S2

Arsenic minerals are mainly used to extract elemental arsenic and produce arsenic acid and arsenic compounds, such as calcium arsenate, sodium arsenate, lead arsenate and so on. In the metallurgical industry, it is used to make arsenic alloys; arsenic-lead alloys are used in the military industry to make bullets, military poisons and fireworks; arsenic-copper alloys are used to make radar parts and automobiles; in light industry, they are used to make milky white glass, Glass decolorization, wool soaking, tanning agents and wood preservation; used in agriculture as pesticides, herbicides, rodenticides and other arsenic pesticides; arsenic products are called arsenic. Realgar concentrate powder can be used to make firecrackers and fireworks.

Arsenic trisulfide can be used as a pigment, reducing agent and medicine.

As the refractive index of As2S3 is 2.45 higher than the refractive index of organic photoresist, and the Knoop hardness is higher, it is researched to manufacture photonic crystals with complete photonic band gap. Research the advancement of laser plate making technology, such as 3D direct laser engraving (3D DLW) and chemical wet etching, so that AS2S3 can be used as a photoresist to prepare 3D nanostructures

AS2S3 and AS4S4 are used as treatment methods for acute promyelocytic leukemia (APL).

Amorphous arsenic trisulfide is used as chalcogenide glass in infrared optical devices. It is transparent between 620 nm and 11 μm.

Arsenic trisulfide glass is more resistant to oxidation than crystalline arsenic trisulfide, thereby minimizing toxicity.

Arsenic Sulfide As2S2 Price

The price of arsenic sulfide As2S2 will vary randomly with factors such as arsenic sulfide As2S2 production costs, transportation costs, international conditions, exchange rates, and arsenic sulfide market supply and demand conditions. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for arsenic sulfide As2S2, please feel free to send an inquiry to get the latest price of arsenic sulfide As2S2.

Arsenic Sulfide As2S2 Supplier

As a global arsenic sulfide As2S2 supplier, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (molybdenum disulfide, nickel disulfide), kun disulfide), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Arsenic Sulfide As2S3 Powder Properties
Other NamesArsenic(3+) trisulfide, arsenic sulphide, arsenic; sulfane,
diarsenic trisulfide, arsenic(3+) trihydride trisulfide, arsenic trisulfide,
Orpiment, CAS 12612-21-4, EC 235-720-6
CAS No.1303-32-8
Compound FormulaAs2S3
Molecular Weight246.0382
AppearanceBright yellow to orange crystals or powder
Melting Point310 °C, 583 K, 590 °F
Solubility in waterN/A
Density3.43 g/cm3
Purity99.90%
Particle Size-100mesh
Boling point707 °C, 980 K, 1305 °F
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass245.7594 g/mol
Monoisotopic Mass 245.7594 g/mol
Arsenic Sulfide As2S3 Powder Health & Safety Information
Safety WarningDanger
Hazard StatementsH301 + H311 + H331-H410
Flashing pointN/A
Hazard CodesT,N
Risk Codes23/25-50/53
Safety Statements20/21-28-45-60-61
RTECS NumberCG2638000
Transport InformationUN 1557 6.1/PG II
WGK Germany3


留言

發佈留言

此網誌的熱門文章

Description of lanthanum nitride LaN products

圖片
  Overview of lanthanum nitride LaN powder Lanthanum nitride  is a black powder with a chemical formula of LaN and a molecular weight of 152.91g/mol. LAN is an unstable and easily oxidized powder in the air. It decomposes and dissolves in acid in high humidity or humid air, releasing ammonia and alkali. At room temperature, it is stable in N2 or Ar. It has a NaCl type structure, A = 5.275 × 10-10 m. The method for preparing nano lanthanum nitride from nano metal lanthanum is to react with nitrogen for 1-24 hours under the protection of atmospheric inert gas to prepare black nano lanthanum nitride powder. Our lanthanum nitride LaN powder (CAS 25764-10-7) has high purity, ultra-fine particle size and larger surface area. Application of lanthanum nitride LaN powder Lanthanum nitride is called LAN powder.  Lanthanum nitride LaN powder  is used in high-end electronic products, sputtering targets, ceramic materials, and magnetic materials. Lanthanum nitride can also be use...
閱讀更多

Is manganese dioxide harmful to the human body?

圖片
  Overview of Manganese Dioxide MnO2 Manganese dioxide  is an inorganic compound with a chemical formula of MnO2. It is a black amorphous powder or black orthorhombic crystal. It is hardly soluble in water, weak acid, weak alkali, nitric acid, cold sulfuric acid, and soluble in concentrated hydrochloric acid under heating to produce chlorine gas. . Used in the preparation of manganese salt, and also used as an oxidant, rust remover, and catalyst. Manganese dioxide is a strong oxidant in acid medium. Manganese dioxide has an octahedral structure. The oxygen atoms are on the corners of the octahedrons. The manganese atoms are in the octahedrons. The octahedrons are connected together to form a single or double chain. These chains and other chains co-top to form a tunnel structure with voids. The octahedron is either hexagonal close-packed or square close-packed. Excessive manganese entering the body can cause poisoning. It mainly damages the central nervous system, especially ac...
閱讀更多

ITO, as a nano-indium tin metal oxide, has good conductivity and transparency

圖片
  Overview of indium tin oxide ITO powder Indium tin oxide  is a mixture, transparent brown film or yellowish gray block, made of 0.9In2O3 and 0.1 SnO2. It is mainly used to make liquid crystal displays, flat panel displays, plasma displays, touch screens, electronic paper, organic light-emitting diodes, Solar cells, antistatic coatings, transparent conductive coatings for EMI shielding, various optical coatings, etc. The main characteristic of indium tin oxide is its combination of electrical conductivity and optical transparency. However, compromises need to be made in thin film deposition, because a high concentration of charge carriers will increase the conductivity of the material, but will reduce its transparency. Indium tin oxide thin films are most commonly deposited on the surface by physical vapor deposition or some sputtering deposition techniques. Because of the high price and limited supply of indium, the fragility and lack of flexibility of ITO layers, and the ne...
閱讀更多