은(I) 산화물

은(I) 산화물
은(I) 산화물 구조식 이미지
카스 번호:
20667-12-3
한글명:
은(I) 산화물
동의어(한글):
은(I);은(I)산화물;은(I)(SILVER(I)OXIDE)
상품명:
Silver oxide
동의어(영문):
SILVER(I) OXIDE;Silver oxid;Silver(I) Oxide 99.5%;Silver oxide;Disilberoxid;ver(I) oxide;disilveroxide;Silver(Ⅰ)Oxide;Oxydisilver(I);ARGENTOUS OXIDE
CBNumber:
CB3443545
분자식:
Ag2O
포뮬러 무게:
231.74
MOL 파일:
20667-12-3.mol

은(I) 산화물 속성

녹는점
300°C (dec.)
밀도
7,143 g/cm3
저장 조건
Store below +15°C.
용해도
insoluble in ethanol; soluble in acid solutions, alkaline solutions
물리적 상태
분말/고체
색상
어두운 갈색
Specific Gravity
7.22
수용성
약간 용해됨
감도
Light Sensitive
Crystal Structure
Cu2O type
crystal system
Cube
Merck
14,8521
Space group
Pn3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.47210.47210.47219090900.1052
안정성
안정적인. 산화제. 대부분의 일반적인 금속, 암모니아, 마그네슘, 많은 유기 물질과 호환되지 않습니다.
InChIKey
KHJDQHIZCZTCAE-UHFFFAOYSA-N
CAS 데이터베이스
20667-12-3(CAS DataBase Reference)
EPA
Silver(I) oxide (20667-12-3)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 O,Xi,C,N
위험 카페고리 넘버 36/37/38-8-34-50/53-41
안전지침서 17-26-36-45-36/37/39-61-60-39
유엔번호(UN No.) UN 1479 5.1/PG 2
WGK 독일 2
RTECS 번호 VW4900000
F 고인화성물질 8
TSCA Yes
위험 등급 5.1
포장분류 II
HS 번호 28432900
독성 LD50 orally in rats: 2.82 g/kg (Smyth)
기존화학 물질 KE-12270
그림문자(GHS): GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H271 화재 또는 폭발을 일으킬 수 있음; 강산화제 산화성 액체;산화성 고체 구분 1 위험 GHS hazard pictograms P210, P220, P221, P280, P283,P306+P360, P371+P380+P375,P370+P378, P501
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 GHS hazard pictograms P280, P305+P351+P338, P310
H410 장기적 영향에 의해 수생생물에 매우 유독함 수생 환경유해성 물질 - 만성 구분 1 경고 GHS hazard pictograms P273, P391, P501
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P220 의류 그리고 가연성 물질로부터 멀리하시오.
P273 환경으로 배출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P283 방화복 또는 방열복을 입으시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
0
2 1
OX

은(I) 산화물 MSDS


Silver(I) oxide

은(I) 산화물 C화학적 특성, 용도, 생산

화학적 성질

Silver(I) oxide, Ag2O, is made by action of oxygen under pressure on silver at 300 °C, or by precipitation of a silver salt with carbonate-free alkali metal hydroxide; it is covalent, each silver atom (in solid Ag2O) having two collinear bonds and each oxygen atom four tetrahedral ones; two such interpenetrating lattices constitute the structure.

물리적 성질

Brownish-black cubic crystals; density 7.14 g/cm3 at 16°C; begins to decompose around 200°C, decomposition becoming rapid at 250 to 300°C; insoluble in water and ethanol; soluble in acids and alkalis; sparingly soluble in solutions of caustic alkalis; insoluble in alcohol.

용도

Polishing glass, coloring glass yellow, catalyst, purifying drinking water, lab reagent, carbon dioxide scrubber, and chemical sensors. It is used in the preparation of other silver compounds, and silver-oxide batteries. In organic chemistry, silver oxide finds use as an oxidizing agent for aldehyes to produce carboxylic acids.

제조 방법

Silver(I) oxide is precipitated by mixing solutions of silver nitrate and caustic soda: 2AgNO3 + 2NaOH → Ag2O + 2NaNO3 + H2O.

일반 설명

Odorless brown-black solid. Sinks in water.

반응 프로필

Hydrogen sulfide is rapidly oxidized and may ignite in contact with Silver oxide [Bretherick 1979 p. 977]; Mixtures of metal sulfides, gold(III) sulfide, antimony sulfide or mercury (II) sulfide, phosphorus, sulfur, selenium, and selenium disulfide ignite on grinding with the oxide. Ammonia or hydrazine slowly react with Silver oxide forming silver nitride or in the presence of alcohol, silver fulminate may also be produced [Bretherick 1979 p. 203]. Oxidation of magnesium is explosive when warmed with Silver oxide.

위험도

Fire and explosion risk in contact with organic materials or ammonia.

건강위험

Contact with eyes causes mild irritation. If continued for a long period, ingestion or inhalation of silver compounds can cause permanent discoloration of the skin (argyria).

화재위험

Behavior in Fire: Decomposes into metallic silver and oxygen. If large quantities are involved, the oxygen might increase the intensity of the fire.

Safety Profile

A poison by intraperitoneal route. Moderately toxic by ingestion. Flammable by chemical reaction; an oxidizing agent. Explodes in contact with ammonia. Incompatible with CuO, (NH3 + ethanol), (hydrazine + ethanol), CO, HzS, Mg, auric sulfide, Sb sulfide, Hg sulfide, nitroalkanes, Se, S, P, K, Na, NaK, seleninyl chloride. See also SILVER COMPOUNDS.

Purification Methods

Leach the oxide with hot water in a Soxhlet apparatus for several hours to remove any entrained electrolytes. [Glemser & Sauer in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1037 1965.]

은(I) 산화물 준비 용품 및 원자재

원자재

준비 용품


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