황화나트륨
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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)
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 |
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 SULFIDESPurification 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
Vat Brown 3GR
시메트린
부틸술파이드
2-AMINO-4-CHLOROTOLUENE HYDROCHLORIDE
Thiane
프로메트린
AMIDO GREEN BLACK B
녹색 019 반응염료
Phosphorous acid chloride and phosphorus dichloride
p-아미노벤즈알데히드
브로목시닐
5-Aminofluorescein
2-아미노-4-메틸페놀
텔루르
Cyclohexyl disulfide
4-Acetamidobenzaldehyde
이황화 셀레늄(이황화 셀렌)
C.I. 다이렉트 블랙 019
Sulfur Red Brown B3R
4-디아조디페닐아민 바이황산염
5-CHLORO-2-METHOXYANILINE HYDROCHLORIDE
VARIAMINE BLUE B DIAZONIUM SALT
Bis(2-nitrophenyl) disulfide
5-BROMO-3-CHLORO-2-PYRIDINONE
N-(4-아미노-2,5-다이에톡시페닐)벤즈아마이드
4-아미노-2-클로로톨루엔
4-BUTOXYANILINE
Calcium chlorate dihydrate
O,O-dialkyl thiophosphoryl chloride
2-(4-METHYLPHENYL)-BENZOTHIAZOLE
brotianide
cadmium red
METHYL(5-MERCAPTO-1H-BENZIMIDAZOL-2-YL)CARBAMATE
알릴 황화합물
5-BROMO-3-FLUORO-2-PYRIDINONE
2-메르캅토 벤즈이미다졸
Isobutenyl sulfide
2,5-티오펜이카복실산
1,5-DIAMINOANTHRAQUINONE
dibenzo[def,mno]chrysene-6,12-dione
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 |