황산 나트륨

황산 나트륨 속성

황산 나트륨 MSDS

Sodium sulfate

황산 나트륨 C화학적 특성, 용도, 생산

용도

무수 황산나트륨은 황화 나트륨, 울트라 마린, 규산 나트륨의 제조를 위해 화학 산업에서 사용됩니다. 유리 제조에서 공용 매로서 소다회 대신. 산업용 합성 세제를 세척하기위한 원료로 사용됩니다. 섬유 산업에서는 비닐론 방사 응고제를 혼합하는 데 사용됩니다. 제지 산업에서는 크라프트 펄프 제조용 조리 시약으로 사용됩니다. 그것은 비철 야금, 가죽 및 기타 측면에서 사용할 수 있습니다. 이는 욕조의 ph 값을 안정화시키기 위해 황산 아연 도금에서 완충제로 사용될 수 있습니다. 그것은 원자 흡광 분석법에서 탈수제, 질소 분해 촉매 및 간섭 억제제와 같은 분석 시약으로 사용됩니다. 그것은 또한 제약 산업에서 사용될 수 있습니다.

용도

그것의 외관은 일반적으로 유리 제조, 화학, 섬유, 제지, 야금, 의료, 화학 분석 및 양식, 고순도, 세밀한에 널리 사용되는 공기에 물을 흡수하기 쉬운 흰색 분말 또는 무색 결정, 무취, 쓴 맛입니다 가루.

순도시험

  이 품목을 105℃에서 4시간 건조한 후 시험한다.

  (1) 용상 : 이 품목 1g을 물 10mL에 녹일 때, 그 액은 무색으로서 탁도는 거의 징명 이하이어야 한다.

  (2) 염화물 : 이 품목 1g을 물에 녹여 100mL로 하고 그 중 10mL에 묽은질산 6mL를 가하여 이를 시험용액으로 하여 염화물시험법에 따라 시험할 때, 그 양은 0.01N 염산 0.3mL에 대응하는 양 이하이어야 한다.

  (3) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 3.0ppm 이하이어야 한다.

  (4) 납 : 「메타인산나트륨」의 순도시험 (2)에 따라 시험한다(2.0ppm 이하).

  (5) 수은 : 이 품목을 수은시험법에 따라 시험할 때, 그 양은 1.0ppm 이하이어야 한다.

  (6) 셀레늄 : 이 품목 0.2g을 정밀히 달아「황산」의 순도시험 (6)에 따라 시험한다(30ppm 이하).

확인시험

  이 품목은 확인시험법 중 나트륨염의 반응 및 황산염의 반응을 나타낸다.

정량법

  이 품목을 건조한 다음 약 0.4g을 정밀히 달아 물 200mL에 녹이고 이에 염산 1mL를 가하여 끓이고 뜨거운 염화바륨시액 30mL를 천천히 가한다. 다음에 수욕상에서 1시간 가열하고 식힌 다음 여과하여 씻은 액이 염화물의 반응을 나타내지 아니할 때까지 씻은 다음 그 침전물을 건조하여 항량이 될 때까지 강열하여 황산바륨으로서 평량한다.

정의

  이 품목에는 결정물(10수염) 및 무수물이 있고, 각각을 황산나트륨(결정) 및 황산나트륨(무수)라 칭한다.

화학적 성질

Sodium sulfate, NaS04, also known as thenardite and salt cake, is a crystalline compound that melts at 888°C (1632°C). Sodium sulfate is found in natural form(thenardite) in Chile and Spain. It is used in the manufacture of paperboard, glass,and freezing mixtures. The hydrate, Na2S04·10H20, also known as "Glauber's salt," is a white water-soluble solid formed by heating sodium chloride and sulfuric acid. It is used in dyeing,manufacturing glass,and in the preparation of sodium bisulfate.

물리적 성질

Anhydrous sodium sulfate is a white crystalline powder; orthorhombic or hexagonal structure; hygroscopic; refractive index 1.468; hardness 2.8 Mohs; density 2.664 g/cm³; melts at 884°C; soluble in water, insoluble in ethanol.
The decahydrate consists of colorless monoclinic crystals; refractive index 1.394; hardness 1.8 Mohs; density 1.4 6g/cm³; decomposes at 32°C; soluble in water; insoluble in ethanol.

출처

Sodium sulfate occurs in nature as the minerals mirabilite and thenardite. While thenardite is the anhydrous form of Na²SO⁴, mirabilite is a naturallyoccurring decahydrate, Na₂SO₄?10H₂O.
Sodium sulfate is one of the most important sodium salts. The decahydrate,commonly known as the Glauber’s salt, was first prepared by Johann Glauber in the seventeenth century as a by-product in making hydrochloric acid from sulfuric acid and sodium chloride.
Sodium sulfate is used in manufacturing paper pulp by the Kraft Process. Other uses are in manufacturing glass and ultramarine; in dyeing and printing textiles; as a filler in synthetic detergents; and for standardizing dyes. A major use of anhydrous sodium sulfate is as an agent to remove water from organic solvents and their extracts for organic synthesis and instrumental analysis. Sodium sulfate is a common laboratory reagent. Also, it is used to prepare other sodium salts.

용도

Sodium sulfate is a filler in the manufacturing of synthetic detergents and soaps and a laboratory reagent. It may enhance the irritant action of certain detergents.

생산 방법

Sodium sulfate is mined from its natural mineral deposits and subjected to purification.
Sodium sulfate is synthesized by the Mannheim process or Hargreaves process. Manheim’s process is based on Glauber’s reaction between sulfuric acid and sodium chloride: 2NaCl + H₂SO₄ → Na₂SO₄ + 2HCl↑
The process was devised by Johann Glauber to produce hydrochloric acid. Sodium sulfate is isolated from the solution by fractional crystallization.
Hargreaves’ process also was developed to produce hydrochloric acid. It is a variation of Mannheim’s method. In this method, sulfur dioxide is used instead of sulfuric acid. The reaction is as follows: 4NaCl + 2SO₂ + O₂ + 2H₂O → 2Na₂SO₄ + 4HCl↑
Sodium sulfate also is obtained as a byproduct of manufacturing phenol by caustic fusion.

정의

A white crystalline compound, Na₂SO₄, usually known as the anhydrous compound (orthorhombic; r.d. 2.67; m.p. 888°C) or the decahydrate (monoclinic; r.d. 1.46; which loses water at 100°C). The decahydrate is known as Glauber’s salt. A metastable heptahydrate (Na₂SO₄·7H₂O) also exists. All forms are soluble in water, dissolving to give a neutral solution. The compound occurs naturally as
mirabilite (Na₂SO_4·10H₂O),
threnardite (Na₂SO₄), and
glauberite (Na₂SO₄·CaSO₄).
Sodium sulphate may be produced industrially by the reaction of magnesium sulphate with sodium chloride in solution followed by crystallization, or by the reaction of concentrated sulphuric acid with solid sodium chloride. The latter method was used in the Leblanc process for the production of alkali and has given the name salt cake to impure industrial sodium sulphate. Sodium sulphate is used in the manufacture of glass and soft glazes and in dyeing to promote an even finish. It also finds medicinal application as a purgative and in commercial aperient salts.

일반 설명

Sodium sulfate (Na₂SO₄) can be obtained directly via precipitation from a saturated solution of Na₂SO₄ at room temperature (20°C). Its crystallization and growth rates at room temperature (20°C) under various conditions have been investigated. Sodium sulfate can be produced during Leblanc process, from sodium chloride and sulfuric acid.

Safety Profile

Moderately toxic by intravenous route. Mildly toxic by ingestion. An experimental teratogen. Experimental reproductive effects. Questionable carcinogen with experimental tumorigenic effects. Violent reaction with Al. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also SULFATES.

잠재적 노출

Sodium sulfate is used in the manufacture of glass; as a precipitating agent in the manufacture of silver emulsions; as an analytical reagent; in making ultramarine and paper pulp; in ceramic glazes and pharmaceuticals; as a food additive; and a filler in synthetic detergents.

운송 방법

UN2630 Selenates or Selenites, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Purification Methods

Crystallise sodium sulfate from water at 30o (1.1mL/g) by cooling to 0o. It becomes anhydrous at 32o.

비 호환성

Violent reaction with aluminum, magnesium. Attacks metals in the presence of moisture.

폐기물 처리

Do not discharge waste sodium sulfate directly into sewers or surface waters. Recovered sodium sulfate may be disposed of by burial in a landfill.

황산 나트륨 준비 용품 및 원자재

원자재

준비 용품

황산 나트륨 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Jiangsu Kolod Food Ingredients Co.,Ltd.	+86-518-85110578 +8618805133257	sales3257@jskolod.com	China	132	60
Hebei Nafu Technology Co. , Ltd.	+8615075022224	17745771666@hebeinafu.com	China	325	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5993	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971 +86-17331933971	deasea125996@gmail.com	China	2503	58
Hebei Jingbo New Material Technology Co., Ltd	+8619931165850	hbjbtech@163.com	China	1000	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7845	58
Yujiang Chemical (Shandong) Co.,Ltd.	+86-17736087130 +86-18633844644	catherine@yjchem.com.cn	China	147	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55

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