硫酸ナトリウム

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H317：アレルギー性皮膚反応を起こすおそれ

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P272：汚染された作業衣は作業場から出さないこと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P302+P352：皮膚に付着した場合：多量の水と石鹸で洗うこと。

  P321：特別な処置が必要である（このラベルの．．． を見よ）。

  P333+P313：皮膚刺激または発疹が生じた場合：医師の診断/手当てを 受けること。

  P363：汚染された衣類を再使用す場合には洗濯をすること。

  P501：内容物/容器を．．．に廃棄すること。

硫酸ナトリウム 価格

MSDS Information

• Sodium sulfate

硫酸ナトリウム 化学特性,用途語,生産方法

• 外観

  白色の粒状

• 定義

  本品は、硫酸(*)のナトリウム塩であり、次の化学式で表される。
  参照表示名称：硫酸

• 溶解性

  水に溶けやすく、エタノール及びジエチルエーテルにほとんど溶けない。

• 解説

  無水塩Na₂SO₄は無色結晶．水溶液からは，32.4 ℃以下では十水和物Na₂SO₄・10H₂Oが得られる．これは工業的には結晶ボウ(芒)硝あるいはグラウバー塩とよばれ，無水塩はたんにボウ硝あるいは無水ボウ硝とよばれる．無水塩は水分を含む有機化合物の溶液(ふつうはエーテル溶液)を脱水乾燥するのによく使われる．

• 用途

  パルプ、合成洗剤、染色

• 用途

  抽出溶媒の脱水剤(清澄剤)。

• 用途

  脱水剤、塩析剤。

• 用途

  汎用試薬、脱水剤。

• 用途

  ダイオキシン類分析の際、試料の前処理に使用する。

• 用途

  汎用試薬、脱水剤、染料等の塩析剤。

• 用途

  抽出溶媒の脱水剤。

• 化粧品の成分用途

  親水性増粘剤

• 効能

  下剤

• 特長

  強熱残分(600℃)…0.5％以下ダイオキシン類分析適合性……適合　　ダイオキシン(4～6塩素化物) : 1pg/L以下　　ダイオキシン(7,8塩素化物) : 5pg/L以下　　ジベンゾフラン(4～6塩素化物) : 1pg/L以下　　ジベンゾフラン(7,8塩素化物) : 5pg/L以下　　コプラナPCB : 5pg/L以下　　ノンオルト-Co-PCB(4～6塩素化物)4種類、　　モノオルト-Co-PCB(5～7塩素化物)8種類

• 使用上の注意

  吸湿性が強い。

• 化学的特性

  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.

• 物理的性質

  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.

• 天然物の起源

  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.

• 使用

  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.

• 調製方法

  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.

• 定義

  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.

• 一般的な説明

  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.

• 化学性质

  稳定的盐类，不与SO2反应

• 安全性プロファイル

  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.

• 職業ばく露

  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.

• 輸送方法

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

• 合成方法

  レーヨンボウ硝や副生ボウ硝を原料として遊離硫酸を炭酸ナトリウムで中和する

• 純化方法

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

• 不和合性

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

• 廃棄物の処理

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

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