나트륨하이드로설파이드

한글명:나트륨하이드로설파이드

카스 번호16721-80-5

상품명:Sodium hydrosulfide

CBNumberCB8448020

분자식HNaS

포뮬러 무게56.06

MOL 파일16721-80-5.mol

동의어(한글)

나트륨하이드로설파이드

히드로황화나트륨

수유화소다

화학적 성질

녹는점	55°C
밀도	1,79 g/cm³
RTECS 번호	WE1900000
인화점	90°C
용해도	soluble in H2O, EtOh, ethyl ether
물리적 상태	고체
물리적 상태	단단한 모양
색상	회백색
수용성	620g/L(20℃)
감도	Moisture Sensitive & Hygroscopic
안정성	안정적이지만 흡습성이 있습니다. 가연성 고체. 공기 중에서 발화할 수 있음.
CAS 데이터베이스	16721-80-5(CAS DataBase Reference)
EPA	Sodium hydrosulfide (16721-80-5)

위험 및 안전 성명

위험품 표기

C,F

위험 카페고리 넘버

31-34

안전지침서

25-36/37/39-45-50A

유엔번호(UN No.)

2318

TSCA

Yes

위험 등급

4.2

포장분류

유해 물질 데이터

16721-80-5(Hazardous Substances Data)

NFPA 704:

	4
3		1

그림문자(GHS)

나트륨하이드로설파이드 MSDS

나트륨하이드로설파이드 화학적 특성, 용도, 생산

화학적 성질
white crystals or powder with a very unpleasant smell
용도
the copper ore beneficiation,the sulfurous acid dyeing of manmade fibre,the synthesis of organic intermediates,the preparation of auxiliary agent of sulfur dyes,and waste water treatment; raw material to produce ammonium sulphate and ethanethiol
일반 설명
Sodium hydrosulfide is a colorless to light yellow crystalline solid or fused mass. Sodium hydrosulfide is corrosive to skin and metal. Used in paper pulping, manufacturing dyes, and dehairing hides.
공기와 물의 반응
Soluble in water. The solution slowly evolves hydrogen sulfide gas. Crystals hydrolyze in moist air to sodium hydroxide and sodium sulfide. Liable to spontaneous heating in moist air.
반응 프로필
A chemical base. Reacts with acids to release flammable and toxic gaseous hydrogen sulfide. As long as the solution is kept strongly alkaline, pH > 10, there is very little release of H2S. At pH = 7, the percent concentration of H2S released is close to 80%.
위험도
Contact with acids causes evolution of toxic gases.
건강위험
Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.
화재위험
Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.
공업 용도
Sodium hydrosulfide (NaHS) is stable only in solution. When in contact with oxygen (air), it slowly oxidizes. If a solution of NaHS is heated, it is converted into Na₂S and H₂S.
Sodium hydrosulfide can be used as a replacement for Na₂S·9H₂O during sulfidization of oxide minerals. Sodium hydrosulfide in solution has a much lower alkalinity than Na₂S.
Although the performance of NaHS is not the same as for Na2S, it is used because of its cost-effectiveness.
Safety Profile
Poison by intraperitoneal and subcutaneous routes. Mutation data reported. A corrosive irritant to skin, eyes, and mucous membranes. Flammable when exposed to heat or flame. Spontaneous combustion. Reacts violently with Qazonium salts. Readily yields HS. When heated to decomposition it emits toxic fumes of SO, and NazO. See also SULFIDES and MERCAPTANS.

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