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カルシウムジヒドロキシド

カルシウムジヒドロキシド 化学構造式
1305-62-0
CAS番号.
1305-62-0
化学名:
カルシウムジヒドロキシド
别名:
カルシウムヒドロキシド;水酸化カルシウム;カルシウムジヒドロキシド;消石灰;水酸化カルシウム,3N;水酸化Ca;水酸化カルシウム ACS REAGENT,≥95.0%;水酸化カルシウム PURISS. P.A.,REAG. PH. EUR.,≥96%;水酸化カルシウム PURUM P.A.,≥96.0% (T);水酸化カルシウム消石灰;水酸化カルシウム, 99.9%;水酸化カルシウム (AS);水酸化カルシウム (JP17)
英語化学名:
Calcium hydroxide
英語别名:
calvit;limbux;limoid;Edelwit;Kemikal;Trulime;biocalc;Ca(OH)2;limemilk;bellmine
CBNumber:
CB9853016
化学式:
CaH2O2
分子量:
74.09
MOL File:
1305-62-0.mol

カルシウムジヒドロキシド 物理性質

融点 :
580 °C
沸点 :
2850 °C
比重(密度) :
2.24 g/mL at 25 °C (lit.)
貯蔵温度 :
Store at +5°C to +30°C.
溶解性:
1.7g/l
外見 :
Solid
色:
White
臭い (Odor):
Odorless
酸塩基指示薬変色域(pH):
12.4
PH:
12.6 (H2O, 20℃)(saturated solution)
水溶解度 :
1.65 g/L (20 ºC)
Sensitive :
Air Sensitive
Merck :
14,1673
Ksp溶解度積定数:
pKsp: 5.26
安定性::
Stable. Incompatible with strong acids.
CAS データベース:
1305-62-0(CAS DataBase Reference)
NISTの化学物質情報:
Calcium dihydroxide(1305-62-0)
EPAの化学物質情報:
Calcium hydroxide (1305-62-0)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  Xi,C
Rフレーズ  41-34-37/38
Sフレーズ  26-39-45-36/37/39-27
RIDADR  3262
WGK Germany  1
RTECS 番号 EW2800000
34
TSCA  Yes
HSコード  2825 90 19
国連危険物分類  8
容器等級  III
有毒物質データの 1305-62-0(Hazardous Substances Data)
毒性 LD50 orally in rats: 7.34 g/kg (Smyth)
化審法 一般化学物質
安衛法 57,57-2
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H315 皮膚刺激 皮膚腐食性/刺激性 2 警告 P264, P280, P302+P352, P321,P332+P313, P362
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
H335 呼吸器への刺激のおそれ 特定標的臓器毒性、単回暴露; 気道刺激性 3 警告
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。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P304+P340 吸入した場合:空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P405 施錠して保管すること。

カルシウムジヒドロキシド 価格 もっと(37)

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) W01W0103-0062 水酸化カルシウム 95.0+% (Titration)
Calcium Hydroxide 95.0+% (Titration)
1305-62-0 500g ¥1650 2021-03-23 購入
富士フイルム和光純薬株式会社(wako) W01USP1086855 水酸化カルシウム (AS)
Calcium Hydroxide (AS)
1305-62-0 1g ¥72000 2020-09-21 購入
関東化学株式会社(KANTO) 07069-01 水酸化カルシウム >95.0%(T)
Calcium hydroxide >95.0%(T)
1305-62-0 500g ¥1700 2021-03-23 購入
関東化学株式会社(KANTO) 07069-00 水酸化カルシウム >96.0%(T)
Calcium hydroxide >96.0%(T)
1305-62-0 500g ¥2100 2021-03-23 購入
Sigma-Aldrich Japan 239232 水酸化カルシウム ACS reagent, ≥95.0%
Calcium hydroxide ACS reagent, ≥95.0%
1305-62-0 100g ¥5720 2021-03-23 購入

カルシウムジヒドロキシド 化学特性,用途語,生産方法

外観

白色の粉末

定義

本品は、カルシウムの水酸化物であり、次の化学式で表される。

溶解性

水に難溶, 酸に可溶。酸には発熱して溶ける。グリセリン、糖および塩化アンモニウム水溶液に可溶。エタノールに不溶。水100gに対する溶解度は0.185g(0℃)、0.077g(100℃)。水に溶けにくく、エタノール及びジエチルエーテルにほとんど溶けない。塩酸又は硝酸に溶ける。

解説

カルシウムの水酸化物。消石灰ともいう。酸化カルシウム(生石灰)に水または水蒸気を作用させると得られる(生石灰の消和)。急速に生成したものは白色粉末であるが、水中に放置すると六方晶系の板状晶に変わる。加熱すると580℃で水蒸気を出して分解し、酸化カルシウムに戻る。  Ca(OH)2→CaO+H2O 水にわずかしか溶けず、しかも温度が上昇すると溶解度はかえって減少する。水溶液は石灰水とよばれ、強いアルカリ性を示す。工業的には懸濁液の形で使われることが多く、これは石灰乳とよばれる。固体または溶液の状態で二酸化炭素を吸収し、水に不溶性の炭酸カルシウムに変わる。  Ca(OH)2+CO2→CaCO3+H2O また、塩素を吸収して次亜塩素酸カルシウム(高度さらし粉の主成分)を生成する。 水酸化カルシウムは安価な強アルカリ物質なので、酸性廃棄物の処理剤、酸性土壌の中和剤、消毒剤などとして用いられる。化学工業ではさらし粉の原料となるほか、反応用アルカリとして広く利用され、建築分野でもモルタル、漆食(しっくい)の材料として重要である。[鳥居泰男][補完資料] | 水酸化カルシウム(データノート)
小学館 日本大百科全書(ニッポニカ) )

用途

高純度金属化合物。

用途

汎用試薬。

用途

さらし粉、農薬、肥料等の原料。

用途

建築用、肥料、サラシ粉、豆炭、練炭、非鉄金属、パルプ、製紙、食品添加物、農薬化粧品原料(清浄用化粧品、頭髪化粧品、基礎化粧品、メークアップ化粧品、芳香化粧品、日焼け?日焼け止め化粧品、爪化粧品、口唇化粧品、口腔化粧品、入浴用化粧品)

化粧品の成分用途

pH調整剤

効能

収斂薬

主な用途/役割

イソブテン・無水マレイン酸共重合樹脂の架橋剤として使用される。

使用上の注意

空気中の二酸化炭素を吸収する。

説明

Calcium Hydroxide is a colorless crystal or white powder, obtained when CaO (called lime or quicklime) is mixed, or “slaked” with water. It can also be precipitated by mixing CaCl2 andNaOH.The nameof the natural,mineral formis “portlandite”. It is a relatively rare mineral, known from some volcanic, plutonic, and metamorphic rocks. It has also been known to be formed in burning coal dumps.

化学的特性

Calcium hydroxide occurs as a white or almost white, crystalline or granular powder. It has a bitter, alkaline taste. Calcium hydroxide readily absorbs carbon dioxide to form calcium carbonate.

物理的性質

Soft white crystalline powder; hexagonal; density 2.34 g/cm3; slightly bitter taste; loses water when heated at elevated temperatures (580°C); slightly soluble in water; Ksp 1.2x10-14; aqueous solution alkaline; soluble in glycerol and acids; insoluble in alcohol.

使用

Calcium hydroxide, a weak base, has many diverse uses. Among the most important ones are:Flocculants; Paints And Sealants; Mortar; Portland Cement Mortar; Lime Plaster
Other uses that have occurred in industry include:
An alkali used as a lye substitute (NaOH) in no-lye hair relaxers.
  1. A chemical depilatory agent found in Nair .
  2. A calcium supplement in mineral fortified baby formulas.
  3. A chemical reagent used to form a long-lasting fungicide.
  4. In “reef-aquariums” for adding bio-available calcium in solution for calcium-using animals such as algae, snails, tube worms and corals and also to increase the alkalinity of the water.
  5. In the tanning industry for neutralization of acid, the liming of hides and skins and the flocculation of resultant wastewater.
  6. In the oil industry for the manufacture of oil additives (salicatic, sulphatic, fenatic).
  7. In the chemical industry for manufacture of calcium stearate.
  8. In the food industry for processing water (for alcoholic and soft drinks).
  9. Used in the separation of sugar from sugar cane in the sugar industry.
  10. Used in the processing of Norwegian “Lutefisk”. Dried cod fish is soaked in a mixture of slaked lime and soda to produce a soft-fleshed fish fillet that is steamed or baked and served with potato “Lefse”.
  11. In the manufacture of brake ? pads, ebonite and pesticides.
  12. In dentistry, it is used as dressing in paste form used for antimicrobial effect during a dental root canal procedure. Calcium hydroxide is known to have a strong antimicrobial effect and is a boneregeneration stimulant.
  13. In the production of metals, lime is injected into the waste gas stream to neutralize acids, such as fluorides and chlorides prior to being released to atmosphere.

使用

Calcium Hydroxide is a general food additive made by adding water to calcium oxide (lime). it has poor water solubility with a solubility of 0.185 g in 100 g of water at 0°c. the ph of a water solution at 25°c is approximately 12.4. it is used to promote dispersion of ingre- dients in sauces, creamed spinach, and a frozen pea/potato dish. it is used at 0.1% to stabilize the potassium iodide of iodized salt, and it is used as a neutralizer for soured cream prior to buttermaking. it is also termed hydrated lime, calcium hydrate, and slaked lime.

使用

calcium hydroxide is an inorganic base used to adjust the pH of a product, it can also serve as a topical astringent and alkali in solutions or lotions. It can burn the skin and eyes.

定義

Lime water: A solution of calcium hydroxide in water. If carbon dioxide is bubbled through lime water a milky precipitate of calcium carbonate forms. Prolonged bubbling of carbon dioxide turns the solution clear again as a result of the formation of soluble calcium hydrogencarbonate (Ca(HCO3)2).

調製方法

Calcium hydroxide is manufactured by adding water to calcium oxide, a process called slaking.

一般的な説明

Odorless white granules. Sinks in water.

空気と水の反応

Water soluble. The amount of heat generated by hydrolysis may be large.

反応プロフィール

The nitroparaffins, nitromethane, nitropropane, etc. form salts with inorganic bases such as Calcium hydroxide . The dry salts are explosive [Chem. Eng. news 30:2344 1952]. Bases are chemically similar to sodium hydroxide (NaOH) or sodium oxide (Na2O). They neutralize acids exothermically to form salts plus water. When soluble in water they give solutions having a pH greater than 7.0. Mixing these materials with water can generate troublesome amounts of heat as the base is dissolved or diluted. Bases react with certain metals (such as aluminum and zinc) to form oxides or hydroxides of the metal and generate gaseous hydrogen. Bases may initiate polymerization reactions in polymerizable organic compounds, especially epoxides). They may generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. Materials of this group often serve as catalysts. A strong base. Forms caustic solution in water [Merck 11th ed. 1989].

危険性

Skin, eye, and upper respiratory tract irri- tant, avoid inhalation.

健康ハザード

Dust irritates eyes, nose and throat.

农业用途

Calcium hydroxide, [Ca(OH)2], also called slaked lime or hydrated lime, is a white solid that dissolves sparingly in water. It is manufactured by adding water to calcium oxide, a process that emits heat and is known as slaking.
Calcium hydroxide is a cheap alkali, used for neutralizing the acidity of acid soils and in the manufacture of mortar, white wash, bleaching powder and glass. It is an excellent absorbent for carbon dioxide to produce insoluble calcium carbonate and has a neutralizing value of 179%, compared to 100% of pure calcium carbonate.

応用例(製薬)

Calcium hydroxide is a strong alkali and is used as a pharmaceutical pH adjuster/buffer and antacid in topical medicinal ointments, creams, lotions, and suspensions, often as an aqueous solution (lime water). It forms calcium soaps of fatty acids, which produce water-in-oil emulsions (calamine liniment), and it is also used as a topical astringent.
Calcium hydroxide is a common cosmetic ingredient in hairstraightening and hair-removal products, and in shaving preparations.
1) In dentistry, it is used as a filling agent and in dental pastes to encourage deposition of secondary dentine. Calcium hydroxide was traditionally used as an escharotic in Vienna Paste.

安全性プロファイル

Mildly toxic by ingestion. A severe eye irritant. A skin, mucous membrane, and respiratory system irritant. Mutation data reported. Causes dermatitis. Dust is considered to be a significant industrial hazard. A common air contaminant. Violent reaction with maleic anhydride, nitroethane, nitromethane, nitroparaffins, nitropropane, phosphorus. Reaction with polychloiinated phenols + potassium nitrate forms extremely toxic products. See also CALCIUM COMPOUNDS

安全性

Calcium hydroxide is used in oral and topical pharmaceutical formulations. It is mildly toxic by ingestion. In the pure state, calcium hydroxide is a severe skin, eye, and respiratory irritant, and it is corrosive, causing burns. Typical exposure limits are TVL 5 mg/m3 in air.
LD50 (mouse, oral): 7.3 g/kg
LD50 (rat, oral): 7.34 g/kg

職業ばく露

Calcium hydroxide is used in agriculture and in fertilizer manufacture; it is used in the formulation of mortar, plasters, and cements; it is used as a scrubbing and neutralizing agent in the chemical industry. For making insecticides, acaricides, and products to control arthropods

貯蔵

Calcium hydroxide should be stored in an airtight container, in a cool, dry, well-ventilated place. Calcium hydroxide powder may be sterilized by heating for 1 hour at a temperature of at least 1608℃.

輸送方法

UN3262 Corrosive solid, basic, inorganic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name required

純化方法

Heat analytical grade calcium carbonate at 1000o during 1hour. Allow the resulting oxide to cool and add slowly to water. Heat the suspension to boiling, cool and filter through a sintered glass funnel of medium porosity (to remove soluble alkaline impurities). Dry the solid at 110o and crush it to a uniformly fine powder. [Ehrlich in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 934 1963.]

不和合性

Incompatible with strong acids, maleic anhydride, phosphorus, nitroethane, nitromethane, nitroparaffins, and nitropropane. Calcium hydroxide can be corrosive to some metals.

廃棄物の処理

Landfill or admixture with acid industrial wastes prior to lagooning

規制状況(Regulatory Status)

GRAS listed. Accepted for use as a food additive in Europe. Included in the FDA Inactive Ingredients Database (intravenous and subcutaneous injections; oral suspensions and tablets; topical emulsions and creams). Included in parenteral preparations licensed in the UK.

カルシウムジヒドロキシド 上流と下流の製品情報

原材料

準備製品


カルシウムジヒドロキシド 生産企業

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1305-62-0(カルシウムジヒドロキシド)キーワード:


  • 1305-62-0
  • CALCIUMHYDROXIDE,POWDER,REAGENT,ACS
  • CALCIUMHYDROXIDE,POWDER,USP,EP,BP,JP
  • CALCIUMHYDROXIDE,TECH(HYDRATEDLIM)(BULK
  • CALCIUMHYDROXIDE,TECHNICAL
  • CARBIDE LIME
  • Calciumhydroxid8
  • Calcium Hydroxde
  • Calcium Hydroxide, Powder, Reagent
  • Calcium hydroxide, 98+%, extra pure
  • Calcium hydroxide, 95+%, for analysis ACS
  • Calcium hydroxide, extra pure
  • Calcium hydroxide, for analysis ACS
  • Calcium dihydoxide
  • Calcium hydrate Lime hydrate Caustic lime
  • Calcium hydroxide, 90%, synthesis grade
  • Calcium hydroxide/96+%
  • CalciuM Hydroxide (AS)
  • EMPROVE(R) CalciuM Hydroxide, Precipitated, Extra Pure, USP, FCC
  • Calcium hydroxide, ACS, 95.0% min
  • Calcium Hydroxide, powder
  • Calcium hydroxide, min. 98%
  • Calcium hydroxide, (L-A196)
  • Calcium Hydroxide, Acs Min
  • calvit
  • carboxide
  • Edelwit
  • hydroxydedecalcium
  • kalkhydrate
  • Kemikal
  • limbux
  • カルシウムヒドロキシド
  • 水酸化カルシウム
  • カルシウムジヒドロキシド
  • 消石灰
  • 水酸化カルシウム,3N
  • 水酸化Ca
  • 水酸化カルシウム ACS REAGENT,≥95.0%
  • 水酸化カルシウム PURISS. P.A.,REAG. PH. EUR.,≥96%
  • 水酸化カルシウム PURUM P.A.,≥96.0% (T)
  • 水酸化カルシウム消石灰
  • 水酸化カルシウム, 99.9%
  • 水酸化カルシウム (AS)
  • 水酸化カルシウム (JP17)
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