아셀렌산

아셀렌산
아셀렌산 구조식 이미지
카스 번호:
7783-00-8
한글명:
아셀렌산
동의어(한글):
아셀레늄산(아셀렌산);아셀렌산;셀레니우스애씨드;하이드로젠셀레나이트;셀레늄다이옥사이드,모노하이드레이트;모노수화된셀렌디산화물;셀레노우스산;아셀레늄산;아셀레늄산 (H2SeO3);이산화 셀레늄 일수화물
상품명:
Selenious acid
동의어(영문):
SELENOUS ACID;SELENIUM METAL;selenious;Selenius Acid;SELENIUM STANDARD;YEAST BOUND SELENIUM;YXS;VANDEX;selaniuM;SELENIUM RED
CBNumber:
CB4854326
분자식:
H2O3Se
포뮬러 무게:
128.97
MOL 파일:
7783-00-8.mol
MSDS 파일:
SDS

아셀렌산 속성

녹는점
70 °C (dec.) (lit.)
끓는 점
684.9 °C(lit.)
밀도
3.004 g/mL at 25 °C (lit.)
증기압
2.7hPa at 15℃
인화점
690°C
저장 조건
Store at RT.
용해도
H2O: 용해성
물리적 상태
가루
산도 계수 (pKa)
2.46(at 25℃)
색상
흰색에서 거의 흰색 또는 연한 분홍색
Specific Gravity
3.004
수소이온지수(pH)
3.15(1 mM solution);2.47(10 mM solution);1.9(100 mM solution)
수용성
167 g/100 mL (20 ºC)
감도
Hygroscopic
Merck
14,8430
노출 한도
ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
안정성
안정적인.
CAS 데이터베이스
7783-00-8(CAS DataBase Reference)
EPA
Selenious acid (H2SeO3) (7783-00-8)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 T,N,Xi
위험 카페고리 넘버 36/38-50/53-33-23/25-52/53
안전지침서 61-60-45-28A-20/21-26-28
유엔번호(UN No.) UN 3440 6.1/PG 3
WGK 독일 3
RTECS 번호 VS7700000
F 고인화성물질 3
TSCA Yes
위험 등급 8
포장분류 III
HS 번호 28111980
유해 물질 데이터 7783-00-8(Hazardous Substances Data)
기존화학 물질 KE-30920
유해화학물질 필터링 97-1-134
함량 및 규제정보 물질구분: 유독물질; 혼합물(제품)함량정보: 셀레늄 또는 그 화합물과 셀렌화합물을 1% 이상 함유한 혼합물
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
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
H410 장기적 영향에 의해 수생생물에 매우 유독함 수생 환경유해성 물질 - 만성 구분 1 경고 GHS hazard pictograms P273, P391, P501
예방조치문구:
P273 환경으로 배출하지 마시오.
P314 불편함을 느끼면 의학적인 조치·조언을 구하시오.
NFPA 704
1
4 1

아셀렌산 C화학적 특성, 용도, 생산

개요

Selenious acid is a colourless, deliquescent crystal in appearance. It decomposes on heating, producing water and toxic fumes of selenium oxides.
It is incompatible with strong reducing agents, organic materials, and finely powdered metals and reacts on contact with acids producing toxic gaseous hydrogen selenide. Selenious acid is a non-combustible chemical. On fire/burning, it emits irritating or toxic fumes (or gases).
The major use of selenious acid is in changing the colour of steel, especially the steel in guns from silver grey to blue grey. It is also used for the chemical darkening and patination of copper brass and bronze, producing a rich dark-brown colour that can be further enhanced with mechanical abrasion.

화학적 성질

Selenious acid is a colorless, crystalline solid.

용도

As a reagent for alkaloids; as oxidizing agent.

일반 설명

Colorless solid, transparent, colorless crystals. Used as a reagent for alkaloids and as an oxidizing agent. Isotope is used in labeling radiopharmaceuticals.

반응 프로필

Selenious acid decomposes when heated to toxic and volatile selenium dioxide. Serves as an oxidizing agent. Reacts exothermically with many reducing agents including hydroiodic acid, sulfurous acid, sodium hyposulfite, hydroxylamine salts, hydrazine salts, hypophosphorous acid, phosphorous acid [Merck]. Oxidizes many organic substances. Is oxidized to selenic acid by strong oxidizing agents.

위험도

Toxic by inhalation, ingestion, and skin absorption.

건강위험

Selenious acid and its salts are capable of penetrating the skin and can produce acute poisonings. Causes irritations and burns of the skin. It is highly toxic orally. Inorganic selenium compounds may cause dermatitis.

화재위험

When heated to decomposition Selenious acid emits toxic fumes of selenium. Avoid heating.

Safety Profile

Poison by ingestion, intraperitoneal, and intravenous routes. Human mutation data reported. Used as an oxidizing agent. When heated to decomposition it emits toxic fumes of Se. See also SELENIUM COMPOUNDS

잠재적 노출

Selenious acid is used as a reagent for alkaloids and as an oxidizing agent. Isotope is used in labeling radiopharmaceuticals.

운송 방법

UN3283Selenium compound, solid, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous material, Technical Name Required. UN3440 Selenium compound, liquid, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous material, Technical Name Required.

Purification Methods

Recrystallise the acid from water. On heating it loses water and SeO2 sublimes. [Waitkins & Clark Chem Rev 36 235 1945.]

비 호환성

A strong oxidizer. Reacts exothermically with many reducing agents including hydroiodic acid, sulfurous acid, sodium hyposulfite, hydroxylamine salts, hydrazine salts, hypophosphorous acid, phosphorous acid. Incompatible combustibles, organic material, oxidizable materials, strong acids, strong bases. Contact with acids produce toxic and gaseous hydrogen selenide. Attacks metals.

폐기물 처리

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal.

아셀렌산 준비 용품 및 원자재

원자재

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