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硫酸バリウム

硫酸バリウム 化学構造式
7727-43-7
CAS番号.
7727-43-7
化学名:
硫酸バリウム
别名:
トラバド;硫酸バリウム;シトバリウム;エソホトラスト;オラトラスト;バリタホワイト;バリドール;バロトラスト;ウニバリット;C.I.ピグメントホワイト21;コロナトラスト;ネオバル;プロントバリオ;バロスペルス;プロン;バコンタール;重晶石;バライト;C.I.ピグメントホワイト22;ミクロパク
英語化学名:
Barium sulfate
英語别名:
hd85;epi-c;rugar;ba147;BARYTE;enecat;eneset;eweiss;e-z-ac;e-z-hd
CBNumber:
CB9854295
化学式:
BaO4S
分子量:
233.39
MOL File:
7727-43-7.mol

硫酸バリウム 物理性質

融点 :
1580 °C
沸点 :
decomposes at 1580℃ [KIR78]
比重(密度) :
4.5
貯蔵温度 :
Storage temperature: no restrictions.
溶解性:
water: insoluble
外見 :
powder
色:
White to yellow
比重:
4.5
PH:
3.5-10.0 (100g/l, H2O, 20℃)suspension
酸塩基指示薬変色域(pH):
7
水溶解度 :
0.0022 g/L (50 ºC)
Merck :
14,994
Ksp溶解度積定数:
pKsp: 9.97
安定性::
Stable.
CAS データベース:
7727-43-7(CAS DataBase Reference)
EPAの化学物質情報:
Barium sulfate (7727-43-7)

安全性情報

主な危険性  Xn
Rフレーズ  20/21/22-36/37/38
Sフレーズ  22-24/25-36-26
WGK Germany  -
RTECS 番号 CR0600000
TSCA  Yes
HSコード  28332700
有毒物質データの 7727-43-7(Hazardous Substances Data)
毒性 LD50 orally in Rabbit: > 20000 mg/kg

硫酸バリウム 価格 もっと(27)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
富士フイルム和光純薬株式会社(wako) W01AFAA11768 硫酸バリウム, precipitated, 99%
Barium sulfate, precipitated, 99%
7727-43-7 500g ¥4320 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01AFAA11768 硫酸バリウム, precipitated, 99%
Barium sulfate, precipitated, 99%
7727-43-7 2500g ¥18980 2018-12-26 購入
関東化学株式会社(KANTO) 04051-01 硫酸バリウム
Barium sulfate
7727-43-7 500g ¥2600 2018-12-13 購入
関東化学株式会社(KANTO) 04051-00 硫酸バリウム
Barium sulfate
7727-43-7 500g ¥5200 2018-12-13 購入
Sigma-Aldrich Japan 243353 硫酸バリウム ReagentPlus?, 99%
Barium sulfate ReagentPlus?, 99%
7727-43-7 100g ¥6700 2018-12-25 購入

硫酸バリウム 化学特性,用途語,生産方法

外観

白色の粉末

定義

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

溶解性

水に不溶, エタノールに不溶。水、酸、アルカリ及び有機溶媒にほとんど溶けない。

用途

・他のバリウム化合物の原料 ・白色顔料、塗料の体質 ・ゴム、紙、絶縁テープの充テン剤、特に光沢を必要とするアート紙、バライト紙には沈降性硫酸バリウムの最上質のものを用いる。 ・X線吸収力が大きく、溶解度が小さく無害であるためX線造影剤として内臓特に消化管の検査に用いる。6局収載の医薬品。

用途

硫酸バリウム

用途

X 線吸収力が大きく、溶解度 が小さく無害であるため X 線造影剤として用 いられます。

用途

製紙充填剤,医薬(X線造影剤),充てん剤,ブレーキパット,無機顔料,塗料,ゴム着色増量剤,炭酸バリウム?チタン酸バリウム?フェライト原料 (NITE CHRIP)

化粧品の成分用途

不透明化剤

効能

診断補助薬 (放射線不透過性造影剤)

主な用途/役割

エポキシ樹脂系接着剤、ゴム系接着剤に使用される。

商品名

ウムブラ (伏見製薬所); コロンフォート (伏見製薬所); ネオバルギン (カイゲンファーマ); ネオバルギン (カイゲンファーマ); ネオバルギン (カイゲンファーマ); バムスター (カイゲンファーマ); バリコンク (カイゲンファーマ); バリコンミール (堀井薬品工業); バリテスター (伏見製薬所); バリトゲン (伏見製薬所); バリトゲン (伏見製薬所); バリトゲン (伏見製薬所); バリトゲン (伏見製薬所); バリトップ (カイゲンファーマ); バリトップ (カイゲンファーマ); バリトップ (カイゲンファーマ); バリトップ (カイゲンファーマ); バリトップ (カイゲンファーマ); バリブライト (カイゲンファーマ); バリブライト (カイゲンファーマ); バリブライト (カイゲンファーマ); バリブライト (カイゲンファーマ); 硫酸バリウム (カイゲンファーマ); 硫酸バリウム (伏見製薬所); 硫酸バリウム (堀井薬品工業); 硫酸バリウム (堀井薬品工業)

説明

Barium sulfate is available as odourless, tasteless, white or yellowish crystals or powder or polymorphous crystals. It is stable and insoluble or negligibly soluble in water, and on burning, it may produce sulphur oxides. It reacts violently with aluminium powder. It occurs naturally as mineral barite, barytes. It has wide use as inert filler and pigment extender in paints, primers, inks, plastics, floor tiles, paper coatings, polymer fibres, and rubber. It is used as the semi-transparent base (lake) for organic pigments and as a thixotropic weighting mud in oil well drilling. Barium sulphate is a contrast agent that is used to help x-ray diagnosis of problems in areas of the upper GI tract, like the oesophagus, the stomach, and/ or the small intestine. The raw barium sulphate has wide applications such as in the manufacture of lithopone, a white pigment in the manufacture of photographic paper, wallpaper and glassmaking, in battery plate expanders, and in heavy concrete for radiation shield.

化学的特性

Barium sulfate is available as white powder or polymorphous crystals. It is stable, odor- less, insoluble, or negligibly soluble in water, and may produce sulfur oxides on burning. It occurs naturally as mineral barite (barytes). It has wide use as an inert i ller pigment extender in paints, primers, inks, plastics, l oor tiles, paper coatings, polymer i bers, and rubber. It is used as the semi-transparent base (lake) for organic pigments and as a thixo- tropic weighting mud in oil well drilling. Barium sulfate is radio-opaque and is used as bar- ium meal in medical x-ray diagnosis. Barium sulfate is a contrast agent that is used to help x-ray diagnosis of problems in areas of the upper GI tract, like the esophagus, the stomach, and/or the small intestine. Barium sulfate is the raw material for the manufacture of litho- pone, a white pigment, and is used in the manufacture of photographic paper, wallpaper, and glassmaking; in battery plate expanders; and in heavy concrete for radiation shield.

物理的性質

Barium sulfate has the molecular formula of BaSO4 and the molecular weight of 233.3896 g/mol. It can be prepared by the reaction of barium carbonate and sulfuric acid:
BaCO3+H2SO4?BaSO4+CO2+H2O
Barium sulfate is a soft crystalline solid. It is a rhombic crystal. The pure salt is white but the color of the mineral “barite” can vary between red, yellow, gray or green, depending on impurities. Its density is 4.50 g/cm3 and its refractive index is 1.64. It melts around 1580°C but decomposes above 1600°C. Its hardness is 4.3 to 4.6 Mohs. It is virtually insoluble in water (285 mg/l at 30°C) and insoluble in alcohol. Its Ksp is 1.1×10-10. It is soluble in concentrated sulfuric acid. The crystal structure of BaSO4 is known to be rhombic, with a space group pnma. The lattice parameters are: a=8.896? , b=5.462°, c=7.171 ?, V=348.4 ?3.
Silica is the prime impurity that can be removed as sodium fluorosilicate by treatment with hydrofluoric acid followed by caustic soda. Very pure barium sulfate may be obtained by treating an aqueous solution of a soluble barium salt with sodium sulfate:
BaCl2+Na2SO4?BaSO4+2NaCl
Barium sulfate is one of the most insoluble salts of the alkaline earths. It does not undergo double decomposition reactions in aqueous phase like its Mg homologue.
It dissolves in concentrated H2SO4 to form an acid sulfate that breaks down to BaSO4 upon dilution. Reduction with coke under heating produces barium sulfide:
BaSO4+3C?BaS+2CO+CO2

天然物の起源

Barium sulfate is widely distributed in nature and occurs as the mineral barite (also known as barytes or heavy spar). It often is associated with other metallic ores, such as fluorspar. Barites containing over 94% BaSO4 can be processed economically.
Barium sulfate has many commercial applications. It is used as natural barite, or precipitated BaSO4. The precipitated salt in combination with equimolar amount of co-precipitated zinc sulfide formerly was used as a white protective coating pigment, known as lithophone. Similarly, in combination with sodium sulfide, it is used to produce fine pigment particles of uniform size, known as blanc fixe. Natural barite, however, has greater commercial application than the precipitated salt. It is used as drilling mud in oil drilling to lubricate and cool the drilling bit, and to plaster the walls of the drill hole to prevent caving. It is used as a filler in automotive paints, plastics and rubber products. It also is used in polyurethane foam floor mats; white sidewall rubber tires; and as a flux and additive to glass to increase the refractive index.
Other chemical applications of barium sulfate are as the opaque ingredient in a barium meal for x-ray diagnosis; as a pigment for photographic paper; and to prepare many barium salts.

使用

Barium sulfate has many commercial applications. It is used either as natural barite, or precipitated BaSO4. The precipitated salt in combination with equimolar amount of co-precipitated zinc sulfide formerly was used as a white protective coating pigment, known as “lithopone”. Similarly, in combination with sodium sulfide, it is used to produce fine pigment particles of uniform size, known as “blanc fixe”. Natural barite, however, has greater commercial application than the precipitated salt. It is used as an additive in drilling mud in crude oil, well drilled to lubricate and cool the drilling bit, and to plaster the walls of the drill hole to prevent caving. It is used as a filler in automotive paints, plastics and rubber products. It also is used as a filler in polyurethane foam floor mats, white sidewall rubber tires and as a flux and additive to glass to increase the refractive index.
Barium sulfate is frequently used clinically as a contrast agent for X-ray imaging and other diagnostic procedures. It is most often used in imaging of the gastrointestinal tract. It is administered, orally or by enema, as a suspension of fine particles in an aqueous solution. Although barium, and its water-soluble compounds are often highly toxic, the extremely low solubility of barium sulfate protects the patient from absorbing harmful amounts of the metal. Barium sulfate is also readily removed from the body, unlike prior compounds, which it replaced. Its absorbance of Xrays is also higher.
Barium sulfate mixtures are used as white pigment for paints. In oil paint, barium sulfate is almost transparent, and is used as a filler or to modify consistency. One major manufacturer of artists’ oil paint sells “permanent white” that contains a mixture of titanium white pigment and barium sulfate. Barium sulfate itself is called blanc fixe (French for “permanent white”).
range. It is applied by spray painting to almost any substrate (metals, plastics, glass) for use in integrating spheres, laser cavities, lamp reflectors and display backlights. It is characterized by a near-perfect Lambertian (i.e. diffuse) reflectance of up to 98% in the spectral range from 250 to 2500 nm.
Other chemical applications of barium sulfate are used as a pigment for photographic paper. It is also used to prepare many other barium salts. It is available in many forms commercially.

使用

barium sulfate is an emulsion stabilizer for sunscreen formulations. outside of sunscreen preparations, this inorganic salt is most commonly used in non-cosmetic soaps.

使用

A heavy, white powder made by treating barium salts with sulfuric acid. Barium sulfate was used as a preliminary coating for raw photographic papers to produce a smooth, white surface and to act as a barrier to prevent reactions between the paper and subsequent coatings of gelatin or collodion emulsions. Barium sulfate was also added directly to emulsions to produce a matte finish. It is also known as barite, synthetic barite, blanc fix, baryta white, and mountain snow.

使用

Finepowder Barium Sulphate is widely used in chemical industrypaint, plastics, rubber,glass, paper, medicine,ceramics, storage battery and other areas;Fine powder Barium Sulphate is widely used in chemical industry

定義

ChEBI: A metal sulfate with formula BaO4S. Virtually insoluble in water at room temperature, it is mostly used as a component in oil well drilling fluid it occurs naturally as the mineral barite.

調製方法

Natural barium sulfate or barite is widely distributed in nature. It also contains silica, ferric oxide and fluoride impurities. Silica is the prime impurity which may be removed as sodium fluorosilicate by treatment with hydrofluoric acid followed by caustic soda.
Very pure barium sulfate may be precipitated by treating an aqueous solution of a barium salt with sodium sulfate:
BaCl2 + Na2SO4 → BaSO4 + 2NaCl
Precipitated BaSO4 is often used in many industrial applications. Blanc fixe and Lithopone are made by the reactions of barium sulfide with sodium sulfate and zinc sulfate, respectively.

brand name

Baricon (Mallinckrodt); Bar-test (Glenwood); Barocat (Mallinckrodt); Barosperse (Mallinckrodt); Barosperse II (Mallinckrodt); Barotrast (Rhone-Poulenc Rorer); Epi-C (Mallinckrodt); Epi-Stat 57 (Mallinckrodt); Epi-Stat 61 (Mallinckrodt); Esophotrast (Rhone-Poulenc Rorer); Oratrast (Rhone-Poulenc Rorer).

反応プロフィール

Barium sulfate is non-combustible and non-toxic. Emits toxic sulfur oxides when heated to decomposition. Can act as an oxidizing agent, but usually does not. Reacts with reducing agents such as potassium, phosphorus or aluminum (heating with aluminum can cause an explosion).

危険性

Pneumoconiosis.

健康ハザード

Exposures to barium sulfate cause irritation to the eyes, lachrimation; redness, scaling, and itching are characteristics of skin inl ammation. Although barium sulfate has been identi- i ed as a non-toxic dust, long-term inhalation of dust in high concentrations has caused benign pneumoconiosis (baritosis), deposition of dust in the lungs in sufi cient quantities to produce adverse effects. This produces a radiological picture even though symptoms and abnormal signs may not be present. The Fumes of barium are respiratory irritants and over-exposure to dusts and fumes is known to cause rhinitis, frontal headache, wheezing, laryngeal spasm, salivation, and anorexia. Long-term effects include nervous disorders and adverse effects on the heart, circulatory system, and musculature. Heavy exposures to barium sulfate may cause benign pneumoconi in exposed workers. However, there are no reports indicating that barium sulfate has potential occupational hazards or carcinogenicity.

応用例(製薬)

Barium salts can be highly toxic even at low concentrations. Barium carbonate is highly toxic and can be used as rat poison as it readily dissolves in the stomach acid. Barium sulfate is the least toxic barium compound mainly because of its insolubility. Barium sulfate is used in a variety of applications ranging from white paint to X-ray contrast agent. The clinical use of barium sulfate suspension is well known under the term barium meal. Patients are given a suspension of barium sulfate to swallow. Using X-ray imaging, the whole oesophagus, the stomach and the intestines can be visualised. Barium sulfate lines the tissue whilst travelling through the digestive tract. The heavy barium ions absorb X-rays readily and therefore these structures become visible in an X-ray screening. Barium sulfate is a well-used and tolerated oral radio-contrast agent. It is also used as radio-contrast agent in enemas.

安全性プロファイル

Questionable carcinogen with experimental tumorigenic data. Mutation data reported. A relatively insoluble salt used as an opaque medium in radtography. Soluble impurities can lead to toxic reactions. Heating with aluminum can produce an explosion. Incompatible with aluminum and potassium. When heated to decomposition it emits toxic fumes of SOx.

職業ばく露

Barium sulfate is used as an opaque medium in radiography; as a mud weighting material in oil well drilling; in paper coating; as a paint pigment.

貯蔵

Barium sulfate should be kept stored in its original sealed glass container with proper security when not in use. Barium sulfate should be stored in a cool, dry, ventilated area, away from incompatible materials and foodstuff containers. The containers need to be protected against physical damage and checked regularly for leaks.

輸送方法

UN1564 Barium compounds, n.o.s., Hazard Class: 6.1; Labels: 6.1—Poisonous materials.

不和合性

May act as an oxidizer. Reacts with reducing agents such as hydrides, potassium, phosphorus or aluminum. Aluminum powder1heat may be violent; possibly explosive.

予防処置

Barium sulfate should only be used by or under the direct supervision of a qualii ed super- visor or doctor. During use and handling of barium sulfate, workers should avoid contact of the chemical substance with the skin and should not breathe dust. After use, the work- ers should wash their hands with soap and water. While dispensing, care is needed to label barium sulfate properly and correctly, to avoid confusion with poisonous barium suli de, suli te, or carbonate.

硫酸バリウム 上流と下流の製品情報

原材料

準備製品


硫酸バリウム 生産企業

Global( 301)Suppliers
名前 電話番号 ファックス番号 電子メール 国籍 製品カタログ 優位度
Henan DaKen Chemical CO.,LTD.
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info@dakenchem.com CHINA 21821 58
Henan Tianfu Chemical Co.,Ltd.
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Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
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career henan chemical co
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Hubei Jusheng Technology Co.,Ltd.
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7727-43-7(硫酸バリウム)キーワード:


  • 7727-43-7
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  • 硫酸バリウム PURISS.,MEETS ANALYTICAL SPECIFICATION OF PH.EUR.,BP,97.5-100.5%
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  • BARIUM SULFATE, PURATRONIC®, 99.998% (METALS BASIS)
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  • 硫酸バリウム, precipitated, 99%
  • 硫酸バリウム, Puratronic®, 99.998% (metals basis)
  • 硫酸バリウム (JP17)
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