ChemicalBook
Chinese English Japanese Germany Korea

수산화칼슘

수산화칼슘
수산화칼슘 구조식 이미지
카스 번호:
1305-62-0
한글명:
수산화칼슘
동의어(한글):
부식제석회;석회수;칼슘수화물;칼시트;PH12.45완충분말;소석회;수산화칼슘;수화석회;칼슘디수산화물;칼슘수산화물(CA(OH)2);수산화칼슘;칼슘하이드록사이드
상품명:
Calcium hydroxide
동의어(영문):
limoid;calvit;limbux;Kemikal;Edelwit;Trulime;biocalc;Ca(OH)2;limemilk;bellmine
CBNumber:
CB9853016
분자식:
CaH2O2
포뮬러 무게:
74.09
MOL 파일:
1305-62-0.mol

수산화칼슘 속성

녹는점
580 °C
끓는 점
2850 °C
밀도
2.24 g/mL at 25 °C(lit.)
저장 조건
Store at RT.
용해도
1.7g/l
물리적 상태
Solid
색상
White
수소이온지수(pH)
12.6 (H2O, 20℃)(saturated solution)
수용성
1.65 g/L (20 ºC)
감도
Air Sensitive
Merck
14,1673
Solubility Product Constant (Ksp)
pKsp: 5.26
안정성
Stable. Incompatible with strong acids.
CAS 데이터베이스
1305-62-0(CAS DataBase Reference)
NIST
Calcium dihydroxide(1305-62-0)
EPA
Calcium hydroxide (Ca(OH)2)(1305-62-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi,C
위험 카페고리 넘버 41-34-37/38
안전지침서 26-39-45-36/37/39-27
유엔번호(UN No.) 3262
WGK 독일 1
RTECS 번호 EW2800000
F 고인화성물질 34
TSCA Yes
HS 번호 2825 90 19
위험 등급 8
포장분류 III
유해 물질 데이터 1305-62-0(Hazardous Substances Data)
독성 LD50 orally in rats: 7.34 g/kg (Smyth)
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 P280, P305+P351+P338, P310
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P304+P340 흡입하면 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

수산화칼슘 C화학적 특성, 용도, 생산

개요

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.

화학적 성질

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.

화학적 성질

White powder

화학적 성질

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

용도

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.

용도

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.

용도

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.

용도

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.

생산 방법

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

정의

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).

일반 설명

Odorless white granules. Sinks in water.

공기와 물의 반응

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

반응 프로필

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].

위험도

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

건강위험

Dust irritates eyes, nose and throat.

농업용

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.

농업용

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.

농업용

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.

Pharmaceutical Applications

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.

Safety Profile

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

Safety

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

잠재적 노출

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

응급 처치

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.

저장

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℃.

운송 방법

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

Purification Methods

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.]

비 호환성

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

비 호환성

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

폐기물 처리

Landfill or admixture with acid industrial wastes prior to lagooning

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.

수산화칼슘 준비 용품 및 원자재

원자재

준비 용품


수산화칼슘 공급 업체

글로벌( 285)공급 업체
공급자 전화 팩스 이메일 국가 제품 수 이점
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 sales3257@jskolod.com CHINA 100 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21930 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20680 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32457 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 1750 55
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114
sales@amoychem.com CHINA 6374 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254
peter@hubeijusheng.com CHINA 20094 58
Alfa Chemistry 1-201-478-8534
1-516-927-0118 inquiry@alfa-chemistry.com United States 9944 60
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76

수산화칼슘 관련 검색:

Copyright 2019 © ChemicalBook. All rights reserved