Antimony sulfide material properties and preparation

Antimony sulfide material properties

Physical properties

The substance is dark gray crystal or powder. Gradually oxidize in the exposed air. It is also soluble in non-volatile alkali hydroxide solution, soluble in concentrated hydrochloric acid and releases hydrogen sulfide, insoluble in water. Pure antimony trisulfide is yellow-red amorphous powder, insoluble in water, acetic acid and acetic acid, but soluble in concentrated hydrochloric acid, alcohol, ammonium sulfide and potassium sulfide solutions. The antimony sulfide used in the fireworks industry is processed from antimony ore powder, which is black or gray-black powder with metallic luster, insoluble in water, and strong reducibility. Toxic, the minimum lethal dose (rat, intraperitoneal) 1000mg/kg (Chemcial Book intraperitoneal injection-rat LD50: 1390 mg/kg).

Chemical nature

The chemical properties of antimony trisulfide are stable at room temperature, but the corresponding oxide can be obtained by heating in air, and it can also be reduced to elemental antimony by H2 or Fe.

The dissolution of antimony trisulfide in concentrated hydrochloric acid takes place as follows:

Sb2S3+6H+8Cl→2SbCl4-+3H2S↑

Antimony trisulfide can be dissolved in concentrated hydrochloric acid, but arsenic trisulfide cannot (because arsenic trisulfide is more acidic than antimony trisulfide), so this method can be used to separate and identify antimony from arsenic trisulfide.

Antimony sulfide preparation

There are three preparation methods: natural mineral processing method, antimony white conversion method and direct chemical method.

Natural mineral processing method

Antimony sulfide products are obtained from natural antimony ore after screening, crushing and other processing.

Antimony White Conversion Method

Reaction equation:

Sb2O3+4Na2S+Ca(OH)2+3H2O→Sb2S3+8NaOH+CaS

Operation method: After mixing Sb2O3 1.80kg, Ca(OH)2 0.6kg and H2O 6kg, heat at 80℃ for 1h. Dissolve 2.41kg of 60% Na2S in 3L of water to form a Na2S solution, add this Na2S solution to the above mixture within 30 minutes at 80°C under stirring, and maintain stirring for another 30 minutes. Then it was acidified with 30% HCl within 3 hours to a pH of 0.4. The temperature was raised to 95°C, and then stirred for 3 hours, cooled, filtered, washed, and dried to obtain Sb2S3 pigment.

Direct legalization

Reaction equation:

3S+2Sb→Sb2S3

Operation method: After the metal antimony is melted at high temperature, sulfur vapor is introduced into it to directly combine to produce antimony trisulfide. The amount of sulfur is 103%-115% of the stoichiometric amount, the reaction is stirred for 0.3-1h, and the reaction temperature is maintained at 650-850°C.

Overview of antimony sulfide Sb2S3 powder

Sulfides are crystals or powders ranging from bismuth to dark gray. The template is oxidized in the open air. It is also soluble in non-volatile hydroxide solution, soluble in concentrated hydrochloric acid, and releases water-insoluble hydrogen sulfide. Pure trisulfide is a pale yellow amorphous powder, insoluble in water, acetic acid and acetic acid, but soluble in concentrated hydrochloric acid, ethanol, and ammonium sulfide solution. The biphenyl sulfide in fireworks is processed into hydrazine powder, which is black or gray-black powder, with metallic luster, insoluble in water, and strong in reducibility. poisonous.

The three oxidants are stable at room temperature, but the corresponding oxides can be obtained in the air, and they can also be reduced by H2 or Fe.

Bismuth trioxide is bismuth dissolved in concentrated hydrochloric acid.

SB2S3 + 6H + 8Cl→2SBCL4- + 3H2S↑

Antimony sulfide Sb2S3 powder application

Antimony sulfide Sb2S3 powder is mainly used to make matches and fireworks, various antimony salts and colored glass. The rubber industry is used as a vulcanizing agent and military workers. It can also be used as a photoelectric material and has good application prospects in the field of solar cells and photochemistry. Make fireworks, glass, explosives, paint.

Antimony sulfide Sb2S3 powder price

Antimony sulfide powder The price of antimony sulfide will vary with the production cost, transportation cost, international situation and market supply and demand of antimony sulfide powder at random. 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 antimony sulfide Sb2S3 powder, please feel free to send an inquiry to get the latest price of antimony sulfide Sb2S3 powder.

Antimony Sulfide Supplier

As a global antimony sulfide 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 (chromium sulfide, zinc sulfide, nickel sulfide), high-purity targets, functional ceramics and structural devices, and provides OEM services.