황화나트륨

황화나트륨
황화나트륨 구조식 이미지
카스 번호:
1313-82-2
한글명:
황화나트륨
동의어(한글):
황화나트륨,무수;황화나트륨*;황화소다;테트라브로모비페닐에테르;황화나트륨;소듐설파이드;황화나트륨,무수;황화 나트륨
상품명:
Sodium sulfide
동의어(영문):
SODIUM SULPHIDE;Disodium sulfide;sodiumsulfuret;disodium sulphide;sodiumsulfide(na2s);Sodium sulfide solid;sodiumsulfide(anhydrous);sodiumsulphide,anhydrous;sodiumsulfide(non-specificname);Na2-S
CBNumber:
CB3429046
분자식:
Na2S
포뮬러 무게:
78.04
MOL 파일:
1313-82-2.mol
MSDS 파일:
SDS

황화나트륨 속성

녹는점
950 °C(lit.)
밀도
1.86 g/mL at 25 °C(lit.)
저장 조건
Refrigerator (+4°C)
용해도
H2O: 0.1 g/mL, 투명, 무색
물리적 상태
플레이크
Specific Gravity
1.856
색상
노란색
수용성
186g/L(20℃)
감도
Hygroscopic
Merck
14,8681
Dielectric constant
5.0(Ambient)
안정성
자연적으로 인화성. 산, 금속, 산화제와 호환되지 않습니다. 산과 접촉하면 독성 가스가 방출됩니다. 미세 먼지/공기 혼합물은 폭발성이 있습니다. 흡습성.
InChIKey
CXPWOVUZRAFMDA-UHFFFAOYSA-N
CAS 데이터베이스
1313-82-2(CAS DataBase Reference)
NIST
Sodium sulfide(1313-82-2)
EPA
Sodium sulfide (1313-82-2)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 C,N,Xn
위험 카페고리 넘버 31-34-50-22
안전지침서 26-45-61-36/37/39
유엔번호(UN No.) UN 1849 8/PG 2
WGK 독일 2
RTECS 번호 WE1905000
F 고인화성물질 3-8-9-23
TSCA Yes
위험 등급 4.2
포장분류 II
HS 번호 28301010
유해 물질 데이터 1313-82-2(Hazardous Substances Data)
기존화학 물질 KE-12378
그림문자(GHS): GHS hazard pictogramsGHS 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
H251 자기발열성; 화재를 일으킬 수 있음 자기발열성 물질 및 혼합물 구분 1 위험 GHS hazard pictograms
H290 금속을 부식시킬 수 있음 금속 부식성물질 구분 1 경고 GHS hazard pictograms P234, P390, P404
H314 피부에 심한 화상과 눈에 손상을 일으킴 피부부식성 또는 자극성물질 구분 1A, B, C 위험 GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H400 수생생물에 매우 유독함 수생 환경유해성 물질 - 급성 구분 1 경고 GHS hazard pictograms P273, P391, P501
예방조치문구:
P235 저온으로 유지하시오.
P260 분진·흄·가스·미스트·증기·...·스프레이를 흡입하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P303+P361+P353 피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
1
3 1

황화나트륨 MSDS


Sodium sulfide

황화나트륨 C화학적 특성, 용도, 생산

물성

에틸알코올에 조금 녹고, 에테르에는 녹지 않는다.

용도

주로 VAT 염색, 인쇄 및 스트리핑, 감소 세척, 실크, 양모, 나일론 및 기타 섬유 표백 기계 펄프, 열 기계 펄프, 탈색 펄프, 설탕, 꿀, 젤라틴과 같은 카올린 표백제 표백제와 같은 섬유 물질 침출에 사용됩니다. 유기 합성 및 의약품 용 환원제.

용도

펄프 및 종이 만들기, 가죽 숨기기, 광석 (부유 제) 처리, 폐수 및 슬러지로부터 금속 침전, 가스 흐름에서 질소 산화물 제거, 스티렌 - 부타디엔 중합 및 기타 화학 제품 제조에 사용됩니다. 조각, 석판 인쇄,면 인쇄 및 사진 촬영에 사용됩니다.

용도

그 이상의 온도에서는 6수화물 5.5수화물 등이 정출된다. 무수화물은 충분한 수소를 공급하면서 가열·탈수하여 만든다. 황화염료의 원료 및 중간물, 가죽 무두질용 탈모제, 레이온 및 셀로판의 탈황, 크라프트펄프용 증해제, 부유선광제 등에 쓰인다.

용도

공업적으로는 수산화나트륨 수용액에 석유화학공업에서 얻어진 폐가스의 황화수소를 포화시켜 황화수소나트륨 수용액으로 만들고, 여기에 같은 양의 수산화나트륨을 가하여 48℃ 이하에서 농축하면 9수화물을 얻을 수 있다.

화학적 성질

Sodium sulfide,Na2S, also known as sodium sulfuret,is an irritating, water-soluble, yellowish to reddish, deliquescent powder that melts at 1180°C (2156 °F). Sodium sulfide is used as a chemical intermediate and solvent,in conversion of wood into paper pulp, as a photographic and analytical reagent,as a source of sulfide,as a reducing agent,in organic reactions, as a depilatory, and in sheep dips.

물리적 성질

White cubic crystal; hygroscopic; density 1.856 g/cm3; melts at 1,172°C; soluble in water 18.6 g/100mL at 20°C and 39 g/100mL at 50°C; aqueous solutions strongly alkaline; slightly soluble in alcohol; insoluble in ether.
The pentahydrate consists of flat, shiny prismatic crystals; density 1.58 g/cm3; loses three water molecules at 100°C; melts at 120°C losing all water molecules; soluble in water and alcohol; aqueous solutions strongly alkaline; insoluble in ether.
The nonahydrate is a yellowish-white crystalline solid; tetragonal crystals; odor of hydrogen sulfide; the color changes on exposure to light and air, first turning to yellow and then becoming brownish-black, deliquescent; density 1.43 g/cm3; decomposes at about 50°C; very soluble in water; aqueous solution strongly alkaline; slightly soluble in alcohol; insoluble in ether.

용도

These yellow flakes were made by fusing sodium carbonate with sulfur. Soluble in water but less so in alcohol, sodium sulfide was lovingly called “stink” by those who used it for toning prints or intensifying negatives because of its sulfurous smell.

정의

ChEBI: A sulfide salt with formula Na2S. The pentahydrate and (particularly) the nonahydrate are also known. In gel form, sodium sulfide is used to soften toenails to assist in trimming (and so relive pain) of ingrowing toenails.

제조 방법

Sodium sulfide is prepared by heating sodium bisulfate with sodium chloride and coal above 950°C. The product mixture is extracted with water and the hydrated sulfide is obtained from the solution by crystallization: NaHSO4 + NaCl + 2C → Na2S + 2CO2↑ + HCl↑
Sodium sulfide also is produced from its elements in liquid ammonia: Na + 2S → Na2S.

일반 설명

Sodium sulfide is a yellow to brick red crystalline mass or fused solid with an odor of rotten eggs. If exposed to moist air Sodium sulfide is liable to spontaneous heating and may cause ignition of nearby combustible material. Sodium sulfide absorbs moisture from the air.

공기와 물의 반응

Aqueous solutions of sodium sulfide when exposed to air slowly convert to sodium hydroxide and sodium thiosulfate. The crystalline form upon exposure to air forms hydrogen sulfide and sodium carbonate [Merck 11th ed. 1989].

반응 프로필

SODIUM SULFIDE is a white to yellow crystalline material, flammable. Can explode on rapid heating or when shocked. Violent reaction with carbon, charcoal, diazonium salts, N,N-dichloromethylamine, strong oxidizers, water. On contact with acids Sodium sulfide liberates highly toxic and flammable hydrogen sulfide gas. When heated to decomposition Sodium sulfide emits toxic fumes of sodium oxide, and oxides of sulfur [Bretherick, 5th ed., 1995, p. 1729].

위험도

Flammable, dangerous fire and explosion risk. Strong irritant to skin and tissue, liberates toxic hydrogen sulfide on contact with acids.

건강위험

Caustic action on skin and eyes. If ingested may liberate hydrogen sulfide in stomach.

화재위험

Special Hazards of Combustion Products: Irritating sulfur dioxide is produced in fire.

공업 용도

In non-metallic flotation, sodium sulfide is also used as a depressant and for collector desorption, in particular, fatty acids from monazite, pyrochlore, zircon and microcline. As a depressant for quartz, sodium sulfide is an excellent depressant for iron-activated quartz as well as non-activated quartz.

Safety Profile

A poison by ingestion and intraperitoneal routes. Flammable when exposed to heat or flame. Unstable and can explode on rapid heating or percussion. Reacts violently with carbon, diazonium salts, n,n-dichloromethylamine, onitroaniline diazonium salt, water. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also SULFIDES

Purification Methods

Some purification of the hydrated salt can be achieved by selecting large crystals and removing the surface layer (contaminated with oxidation products) by washing with distilled water. Other metal ions can be removed from Na2S solutions by passage through a column of Dowex ion-exchange A-1 resin, Na+-form. The hydrated salt can be rendered anhydrous by heating it in a stream of H2 or N2 until water is no longer evolved. (The resulting cake should not be heated to fusion because it is readily oxidised.) Recrystallise it from distilled water [Anderson & Azowlay J Chem Soc, Dalton Trans 469 1986]. Note that sodium sulfide hydrolyses in H2O to form NaHS + H2O, and is therefore alkaline. A 0.1N solution in H2O is 86% hydrolysed at room temperature. Its solubility in H2O is 8% at 0o, 12% at 20o and 30% at 50o. The anhydrous salt is obtained by allowing it to stand in a vacuum over conc H2SO4 or P2O5 at 45o to start with, then at 30-35o when the salt contains 4% of water. The last traces of water are removed by heating to 700o in a glass or porcelain tube in a stream of H2 to give pure H2S. [Fehér in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I pp 358-360 1963.]

황화나트륨 준비 용품 및 원자재

원자재

준비 용품


황화나트륨 공급 업체

글로벌( 505)공급 업체
공급자 전화 이메일 국가 제품 수 이점
Hebei Jingbo New Material Technology Co., Ltd
+8619931165850
hbjbtech@163.com China 1000 58
Henan Fengda Chemical Co., Ltd
+8613613820652
info@fdachem.com China 5085 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21700 55
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795
ivan@atkchemical.com China 32480 60
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29914 58
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28180 58
Hebei Guanlang Biotechnology Co., Ltd.
+86-19930503282
alice@crovellbio.com China 8823 58
Hubei xin bonus chemical co. LTD
86-13657291602
linda@hubeijusheng.com CHINA 22968 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5909 58
Shanghai Longyu Biotechnology Co., Ltd.
+8615821988213
info@longyupharma.com China 2530 58

황화나트륨 관련 검색:

Copyright 2019 © ChemicalBook. All rights reserved