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산화납(II)

산화납(II)
산화납(II) 구조식 이미지
카스 번호:
1317-36-8
한글명:
산화납(II)
동의어(한글):
금밀타;납모녹시드;납산화물리타르즈;납프록시드;납(II)산화물;마시코토트;마시코트;플룸보스산화물;황색납;황색산화납;C.I.염료황색46;납산화물(PBO),납함유;리서지;산화납;일산화연;산화납;납 프로톡사이드;산화 납(II);안료 황색 46;일산화 납
상품명:
Lead monoxide
동의어(영문):
ow;RED LEAD;massicot;LITHARGE;Lead oxid;c.i. 77577;massicotite;lithargepure;Lead(Ⅱ) oxide;Lead(I) Oxide
CBNumber:
CB4119629
분자식:
OPb
포뮬러 무게:
223.1994
MOL 파일:
1317-36-8.mol

산화납(II) 속성

녹는점
886 °C(lit.)
끓는 점
1470 °C
밀도
9.53
증기압
10 mm Hg ( 0 °C)
굴절률
2.67
저장 조건
Store below +30°C.
용해도
Soluble in concentrated alkali, HCl and ammonium chloride. Insoluble in dilute alkali and alcohol.
물리적 상태
powder
색상
yellow
Specific Gravity
9.53
수소이온지수(pH)
8-9 (100g/l, H2O, 20℃)(slurry)
수용성
Soluble in concentrated alkali, hydrochloric acid, and ammonium chloride. Insoluble in water, dilute alkali and alcohol.
Hydrolytic Sensitivity
4: no reaction with water under neutral conditions
Merck
14,5413
안정성
Stable. Reacts violently with hydrogen peroxide, strong oxidizing agents, aluminium, zirconium, halogens, sulphur trioxide, boron, silicon, sodium, zinc.
CAS 데이터베이스
1317-36-8(CAS DataBase Reference)
NIST
Lead monoxide(1317-36-8)
EPA
Lead monoxide (1317-36-8)
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 OG1750000
TSCA Yes
HS 번호 2824 10 00
위험 등급 6.1(b)
포장분류 III
유해 물질 데이터 1317-36-8(Hazardous Substances Data)
독성 LD50 i.p. in rats: 40 mg Pb/100g (Bradley, Fredrick)
기존화학 물질 KE-21926
유해화학물질 필터링 97-1-9
중점관리물질 필터링 별표1-107
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
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, P501
H332 흡입하면 유해함 급성 독성 물질 흡입 구분 4 경고 P261, P271, P304+P340, P312
H351 암을 일으킬 것으로 의심됨 (노출되어도 암을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재) 발암성 물질 구분 2 경고 P201, P202, P281, P308+P313, P405,P501
H360 태아 또는 생식능력에 손상을 일으킬 수 있음 생식독성 물질 구분 1A, 1B 위험
H362 모유를 먹는 아이에게 유해할 수 있음 생식독성 물질,수유 또는 수유기에 미치는 영향 추가 카테고리 P201, P260, P263, P264, P270,P308+P313
H372 장기간 또는 반복 노출되면 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킴 특정 표적장기 독성 - 반복 노출 구분 1 위험 P260, P264, P270, P314, P501
H373 장기간 또는 반복 노출되면 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킬 수 있음 특정 표적장기 독성 - 반복 노출 구분 2 경고 P260, P314, P501
H400 수생생물에 매우 유독함 수생 환경유해성 물질 - 급성 구분 1 경고 P273, P391, P501
H410 장기적 영향에 의해 수생생물에 매우 유독함 수생 환경유해성 물질 - 만성 구분 1 경고 P273, P391, P501
예방조치문구:
P201 사용 전 취급 설명서를 확보하시오.
P260 분진·흄·가스·미스트·증기·...·스프레이를 흡입하지 마시오.
P263 임신·수유 기간에는 접촉하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P304+P340 흡입하면 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오.
P308+P313 노출 또는 접촉이 우려되면 의학적인 조치· 조언를 구하시오.
P405 밀봉하여 저장하시오.
NFPA 704
0
2 0

산화납(II) C화학적 특성, 용도, 생산

개요

Lead(II) oxide occurs in two polymorphs, red, having a tetragonal crystal structure and yellow, having an orthorhombic crystal structure. Both forms occur naturally as rare minerals. The red form is known as “Litharge” and the yellow form is known as “Massico”.

화학적 성질

Lead monoxide, litharge, PbO, exists in a reddish alpha form up to 489 °C; it then transforms to a yellow beta form (massicot), which is stable at high temperatures. It has a water solubility of 17 mg/L at 20 °C, and is soluble in nitric acid, alkalies, lead acetate, ammonium chloride, and chlorides of calcium and strontium. In alkalies, it forms the plumbite ion, [PbO2]2? . Lead oxides are produced industrially by thermal processes in which lead is directly oxidized with air. In the ball mill process, metallic lead balls are tumbled in air to produce a “leady” oxide, which typically contains 20-35% free lead. The Barton pot process oxidizes droplets of molten lead at ca. 430°C to produce either litharge or leady litharge.

물리적 성질

The oxide exhibits two crystalline modifications, the reddish or orange-red alpha form, known as litharge, and the yellow beta form, massicot. The alpha form constitutes tetragonal crystals while the beta modification is a yellow amorphous powder of orthorhombic crystal structure. The alpha form is stable at ordinary temperatures, converting to the beta form when heated at 489°C; density 9.35 g/cm3 (beta form); Moh’s hardness 2 (alpha form); the oxide melts at 888°C; vaporizes at 1,472°C with decomposition; vapor pressure 1 torr at 943°C and 5 torr at 1,039°C; practically insoluble in water (the solubility of alpha form is 17 mg/L at 20°C and that of beta form 23 mg/L at 22°C); insoluble in ethanol; soluble in dilute nitric acid and alkalies.

용도

Assay of gold and silver ores.

용도

In ointments, plasters; preparing solution of lead subacetate. Glazing pottery; glass flux for painting on porcelain and glass; lead glass; varnishes; with glycerol as metal cement; producing iridescent colors on brass and bronze; coloring sulfur-containing substances, e.g., hair, nails, wool, horn; manufacture of artificial tortoise shell and horn; pigment for rubber; manufacture of boiled linseed oil; in assay of gold and silver ores.

생산 방법

Lead monoxide is obtained commercially by two processes, Barton process and the Ball Mill process. The Ball-Mill process involves reaction of molten lead with oxygen or air, and in the Barton process atomized molten lead is stirred in a mechanical furnace above 550°C. The molten metal splashed by the stirring paddle comes in contact with air fed into the cover of the furnace through a pipe, thus forming a mist of finely divided lead monoxide. The mist also contains a small amount of unreacted lead. The mist is passed through an upright shaft where a major portion of unreacted lead falls back into the furnace. It is then rapidly cooled and collected in condensing chambers. The crude product may contain 1 to 3% lead. It is finely ground and sold. The remaining lead in the crude product may be converted into the lead monoxide by stirring the molten mass in presence of air for several hours. The hot product is then cooled rapidly to a temperature below 300°C to prevent any formation of lead tetroxide, Pb3O4.
In an alternate process, a variation of the above method, molten lead is atomized in a shaft furnace. An air stream carries the very finely divided metal into the hot zone of the shaft furnace where the metal evaporates and oxidizes producing very finely divided lead monoxide. The product is passed through the cold zone of the furnace and cooled rapidly. The product obtained is a yellow powdery material, the beta form of lead oxide, massicot, consisting of orthorhombic crystals.
The red lead oxide (the tetragonal alpha modification) is obtained by slow cooling of the lead monoxide melt. The solidified mass may contain the red alpha form of the oxide resulting from slow cooling of the melt, under an outer layer of yellow beta form that may result from the rapid cooling of the outer portion.
Lead monoxide also is produced by a modified Ball Mill process in which high purity lead balls placed in the mill are partially oxidized to produce black or grey oxide. Both the red and yellow form of the oxide may be prepared by alkaline dehydration of lead hydroxide, Pb(OH)2.

일반 설명

Odorless gray or yellow green or red-brown solid. Sinks in water.

반응 프로필

Lead monoxide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Aluminum carbide is oxidized with incandescence on warming with lead oxide, [Mellor, 1946, Vol. 5, 872]. Mixtures of lead oxide with aluminum powder(as with other metals: sodium, zirconium) give a violent explosions, [Mellor, 1946, Vol. 5, 217, 1941].

건강위험

General symptoms of lead poisoning (delayed). Inhalation or ingestion causes abdominal pain (lead colic), metallic taste in mouth, loss of weight, pain in muscles, and muscular weakness. Dust may irritate eyes.

Purification Methods

Higher oxides are removed by heating under vacuum at 550o with subsequent cooling under vacuum. It is red at room temperature but becomes yellow at high temperatures (~480o) reversibly. [Ray & Ogg J Am Chem Soc 78 5994 1956, Kwestroo et al. J Inorg Nucl Chem 29 39 1967.]

산화납(II) 준비 용품 및 원자재

원자재

준비 용품


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