황산 탈륨, 고체

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H300：삼키면 치명적임

  H311：피부와 접촉하면 유독함

  H315：피부에 자극을 일으킴

  H372：장기간 또는 반복 노출되면 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킴

  H410：장기적 영향에 의해 수생생물에 매우 유독함

• 예방조치문구

  P260：분진·흄·가스·미스트·증기·...·스프레이를 흡입하지 마시오.

  P273：환경으로 배출하지 마시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P301+P310：삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.

  P314：불편함을 느끼면 의학적인 조치·조언을 구하시오.

황산 탈륨, 고체 화학적 특성, 용도, 생산

• 화학적 성질

  white fine crystalline powder or needles

• 용도

  Thallium(I) sulfate is used as a precursor to thallium(I) sulfide, which exhibits high electrical conductivity when exposed to infrared light. It is further used in photocells. It is also mixed with selenium and arsenic to produce low melting glasses.

• 생산 방법

  Commercial sources are flue dusts, either from pyrite (FeS2) burners or from lead and zinc smelters and refiners, as a byproduct of cadmium production at the rate of a few thousand pounds per year. In the flue dusts thallium occurs largely as a sulfate, which is extracted with hot water or dilute sulfuric acid. The purification of thallium is accomplished by taking advantage of the difference in solubility of certain thallium compounds and the impurities. Traces of zinc, copper, cadmium, lead, and indium are removed by dissolving the thallium in and precipitating the impurities with hydrogen sulfide.

• 일반 설명

  Odorless white rhomboid prisms or a dense white powder. Density 6.77 g / cm3. Melting point 1170°F (632°C). Extremely toxic by ingestion. Very toxic by skin absorption and ingestion. A slow acting cumulative poison. Used as a rat poison, and an ant bait. Also used for analysis (testing for iodine in the presence of chlorine) and ozonometry. Not registered as a pesticide in the U.S.

• 공기와 물의 반응

  Soluble in water.

• 반응 프로필

  THALLIUM(I) SULFATE has weak oxidizing and weak reducing powers. Redox reactions can however still occur.

• 건강위험

  Rated as extremely toxic. The probable oral lethal dose in humans is 5 to 50 mg/kg, or between 7 drops and 1 teaspoon for a 150-pound person. The mean lethal dose in an adult is probably about 1 gm of THALLIUM(I) SULFATE. Chronic exposure causes hair loss starting 10 days after exposure and complete baldness in about a month.

• 화재위험

  When heated to decomposition, THALLIUM(I) SULFATE emits very toxic fumes of thallium and sulfur oxide.

• Safety Profile

  Human poison by ingestion. Experimental poison by ingestion and subcutaneous routes. Human systemic effects by ingestion: ataxia, change in heart rate, excitement, eye changes, irritability, nausea or vomiting, nerve or sheath structural changes, somnolence, wakefulness. Experimental reproductive effects. When heated to decomposition it emits very toxic fumes of T1 and SOx. Used as a rat poison, ant bait, and a reagent in analytical chemistry. See also THALLIUM COMPOUNDS and SULFATES.

• Carcinogenicity

  Thallium is not classifiable with respect to carcinogenicity due to a lack of relevant human and animal studies. Several subchronic and chronic animal studies on thallium and compounds are available; however, they were not designed to examine carcinogenic end points.

• Purification Methods

  The sulfate crystallises from hot water (7mL/g) by cooling; then dry it under vacuum over P2O5. It is POISONOUS.

황산 탈륨, 고체 준비 용품 및 원자재

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