염화 납
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염화 납 속성
- 녹는점
- 501 °C(lit.)
- 끓는 점
- 950 °C(lit.)
- 밀도
- 5.85 g/mL at 25 °C(lit.)
- 증기압
- 1 mm Hg ( 547 °C)
- 인화점
- 951°C
- 저장 조건
- Store below +30°C.
- 용해도
- 지방족 탄화수소: 약간 용해됨(lit.)
- 물리적 상태
- 가루
- 색상
- 흰색에서 황백색까지
- Specific Gravity
- 5.85
- 수용성
- 뜨거운 물, 알칼리 수산화물 및 NH44Cl 용액에 용해됩니다. 찬물과 알코올에 용해되지 않습니다.
- Hydrolytic Sensitivity
- 0: forms stable aqueous solutions
- Merck
- 14,5404
- Solubility Product Constant (Ksp)
- pKsp: 4.77
- 노출 한도
- ACGIH: TWA 0.05 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 0.050 mg/m3
- Dielectric constant
- 4.2(0.0℃)
- 안정성
- 안정적인. 강한 산화제, 강산과 호환되지 않습니다.
- CAS 데이터베이스
- 7758-95-4(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | T,N | ||
---|---|---|---|
위험 카페고리 넘버 | 61-20/22-33-50/53-62 | ||
안전지침서 | 53-45-60-61 | ||
유엔번호(UN No.) | UN 2291 6.1/PG 3 | ||
WGK 독일 | 3 | ||
RTECS 번호 | OF9450000 | ||
TSCA | Yes | ||
위험 등급 | 6.1 | ||
포장분류 | III | ||
HS 번호 | 28273990 | ||
유해 물질 데이터 | 7758-95-4(Hazardous Substances Data) | ||
독성 | MLD in guinea pigs (mg/kg): 1500-2000 orally (Tartler) | ||
기존화학 물질 | KE-21901 | ||
유해화학물질 필터링 | 97-1-9 | ||
중점관리물질 필터링 | 별표1-129 | ||
암, 돌연변이성물질 필터링 | 13 | ||
함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 사산화납(lead tetraoxide), 황산납(lead sulfate), 염기성탄산납(basic lead carbonate)을 제외한 납화합물(Lead compounds) 및 이를 25% 이상 함유한 혼합물. 다만, 초산납(lead acetate), 알킬화납(lead alkyls), 아지드화납(lead azide), 이초산납(lead di(acetate)), 메탄술폰산납(lead(Ⅲ) methansulfonate), 인산납(lead phosphate(3:2)), 스티핀산납(lead styphate)의 경우는 이를 0.5% 이상 함유한 혼합물 |
염화 납 C화학적 특성, 용도, 생산
화학적 성질
Lead chloride is a white crystalline powder물리적 성질
White orthorhombic crystals; refractive index 2.199; density 5.85 g/cm3; melts at 501°C; vaporizes at 950°C; partially soluble in cold water (6.73 g/L at 0°C and 9.9 g/L at 20°C); KSP 1.17x10-5 at 25°C; moderately soluble in boiling water (33.4 g/L at 100°C); slightly soluble in dilute HCl and ammonia; insoluble in alcohol.출처
Lead dichloride occurs in nature as the mineral cotunnite. The compound is used in making many basic chlorides, such as Pattison’s lead white, Turner’s Patent Yellow, and Verona Yellow, used as pigments. Also, it is used as a flux for galvanizing steel; as a flame retardant in nylon wire coatings; as a cathode for seawater batteries; to remove H2S and ozone from effluent gases; as a sterilization indicator; as a polymerization catalyst for alphaolefins; and as a co-catalyst in manufacturing acrylonitrile.용도
Lead(II) chloride is used in the synthesis of lead titanate and barium lead titanate ceramics; employed in the production of infrared transmitting glass and ornamental glass (aurene glass); useful as an electrode in geophysical applications and in solar cells. Analytical reagent, preparation of lead salts, as solder and flux. Pattinson's white lead, pigment in white paint, is the basic lead chloride.정의
ChEBI: An inorganic chloride consisting of two chlorine atoms covalently bound to a central lead atom.제조 방법
Lead dichloride is precipitated by adding hydrochloric acid or any chloride salt solution to a cold solution of lead nitrate or other lead(II) salt:Pb2+ + 2Clˉ → PbCl2
Alternatively, it is prepared by treating lead monoxide or basic lead carbonate with hydrochloric acid and allowing the precipitate to settle.
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일반 설명
Prepared by reacting lead(II) oxide /acetate or carbonate with HCl. In crystalline PbCl2, each atom is coordinated by nine Cl atoms, six of which lie at the apices of a trigonal prism and the remaining three beyond the centers of the three prism faces. Each Cl is coordinated by four or five Pb atoms. Upon exposure to air it form basic chlorides such as PbCl2.Pb(OH)2.반응 프로필
Lead dichloride is a weak reducing agent. Interaction of Lead dichloride and calcium is explosive on warming, [Mellor, 1941, Vol. 3, 369].위험도
Toxic effects from ingestion may vary from low to moderate. The oral lethal dose in guinea pigs is documented as 1,500 mg/kg. (Lewis (Sr.), R. J. 1996. Sax’s Dangerous Properties of Industrial Materials, 9th ed. New York: Van Nostrand Reinhold).건강위험
DUST AND FUMES. POISONOUS IF INHALED. SOLID: If swallowed, may cause metallic taste, abdominal pain, vomiting, and diarrhea.화재위험
Not flammable. POISONOUS METAL FUMES MAY BE PRODUCED IN FIRE. Toxic metal fumes. Can emit toxic metal fumes.잠재적 노출
Used to make lead salts; lead chromate pigments; as an analytical reagent for making other chemicals; making printed circuit boards; as a solder and flux.운송 방법
UN2291 Lead compounds, soluble n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name RequiredPurification Methods
Crystallise it from distilled water at 100o (33mL/g) after filtering through sintered-glass and adding a few drops of HCl, by cooling. After three crystallisations the solid is dried under vacuum or under anhydrous HCl vapour by heating slowly to 400o. The solubility in H2O is 0.07% at ~10o, and 0.43% at ~ 100o.비 호환성
A reducing agent. Violent reaction with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, and chemically active metals. Explosive with calcium 1 warming염화 납 준비 용품 및 원자재
원자재
준비 용품
염화 납 공급 업체
글로벌( 299)공급 업체
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sale@simagchem.com | China | 17367 | 58 |