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カルシウムジヒドロキシド 化学構造式
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)
Calcium hydroxide
MOL File:

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 RT.
外見 :
12.6 (H2O, 20℃)(saturated solution)
水溶解度 :
1.65 g/L (20 ºC)
Sensitive :
Air Sensitive
Merck :
pKsp: 5.26
Stable. Incompatible with strong acids.
CAS データベース:
1305-62-0(CAS DataBase Reference)
Calcium dihydroxide(1305-62-0)
Calcium hydroxide (Ca(OH)2)(1305-62-0)
  • 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
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
注意喚起語 Danger
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
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(31)

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 2018-12-26 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 2018-12-26 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 2018-12-13 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 2018-12-13 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 ¥5500 2018-12-25 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






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。


















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.


White powder


Calcium hydroxide is a soft white crystalline, odorless powder with an alkaline, bitter taste.


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.


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.


In mortar, plaster, cement and other building and paving materials; in lubricants, drilling fluids, pesticides, fireproofing coatings, water paints; as egg preservative; manufacture of paper pulp; in SBR rubber vulcanization; in water treatment; dehairing hides.


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.


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.
? A chemical depilatory agent found in Nair .
? A calcium supplement in mineral fortified baby formulas.
? A chemical reagent used to form a long-lasting fungicide.
? 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.
? In the tanning industry for neutralization of acid, the liming of hides and skins and the flocculation of resultant wastewater.
? In the oil industry for the manufacture of oil additives (salicatic, sulphatic, fenatic).
? In the chemical industry for manufacture of calcium stearate.
? In the food industry for processing water (for alcoholic and soft drinks).
? Used in the separation of sugar from sugar cane in the sugar industry.
? 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”.
? In the manufacture of brake ? pads, ebonite and pesticides.
? 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.
? 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.


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


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).


Odorless white granules. Sinks in water.


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


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].


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


Dust irritates eyes, nose and throat.


Calcium hydroxide Ca(OH)2also called slaked lime or hydrated lime, is a white solid which dissolves sparingly in water. It is used as an acid neutralizing material and has an efficiency of 135% compared to 100% for calcium carbonate.


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.


Slaked lime is another name for calcium hydroxide or hydrated lime. It contains 50% calcium and is a standard liming material. Slaked lime is prepared by hydrating calcium oxide and has a calcium carbonate equivalent of 136.


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.


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


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


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


Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.


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℃.


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


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.]


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


May react violently with acids, maleic anhydride, nitromethane, nitroethane, nitropropane, nitroparaffins, and phosphorus.


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



カルシウムジヒドロキシド 生産企業

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  • Calcium hydroxide, extra pure
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  • 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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