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炭酸カルシウム(II)(1:1)

炭酸カルシウム(II)(1:1) 化学構造式
1317-65-3
CAS番号.
1317-65-3
化学名:
炭酸カルシウム(II)(1:1)
别名:
炭酸カルシウム(II)(1:1);石灰石;炭酸カルシウム;方解石
英語化学名:
CALCIUM CARBONATE
英語别名:
CHALK;WHITING;CALCITE;Agstone;KALKSPAR;domolite;franklin;ARAGONITE;flux lime;MARBLEDUST
CBNumber:
CB2356871
化学式:
CCaO3
分子量:
100.09
MOL File:
1317-65-3.mol

炭酸カルシウム(II)(1:1) 物理性質

融点 :
825 °C
沸点 :
2850 °C
比重(密度) :
2.93 g/mL at 25 °C(lit.)
溶解性:
5 M HCl: 0.1 M at 20 °C, clear, colorless
外見 :
random crystals
色:
Gray
Ksp溶解度積定数:
pKsp: 8.47
CAS データベース:
1317-65-3(CAS DataBase Reference)
EPAの化学物質情報:
Limestone (1317-65-3)

安全性情報

主な危険性  Xi
Rフレーズ  37/38-41
Sフレーズ  26-36/37/39
WGK Germany  -
RTECS 番号 FF9335000

炭酸カルシウム(II)(1:1) 価格

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

炭酸カルシウム(II)(1:1) 化学特性,用途語,生産方法

定義

本品は、主として炭酸カルシウムからなる鉱物である。

解説

CaCO3よりなる鉱物.空間群 Pmcnの斜方晶系.格子定数 a0 = 0.496,b0 = 0.796,c0 = 0.574 nm.単位格子中4個の基本組成を含む.硬度3.5~4.密度2.947 g cm-3.紫外線,X線,電子線により蛍光を発する.Caの一部はわずかにSr,Pb,Znで置換される.方解石と多形の関係にあるが不安定である.火成岩の晶洞,あるいは低温の地表,温泉地帯に産出する.
森北出版「化学辞典(第2版)

化粧品の成分用途

皮膚コンディショニング剤

説明

Calcite is one of the most common minerals on the face of the earth, comprising about 4% by weight of the earth’s crust and is formed in many different geological environments. Calcite can form rocks of considerable mass and constitutes a significant part of all three major rock classification types. It forms oolitic, fossiliferous and massive limestones in sedimentary environments and even serves as the internal cement for many sandstones and shales.Calcite is even a major component in the igneous rock called carbonatite and forms the major portion of many hydrothermal veins. Not necessarily a variety of calcite, cave formations are certainly a unique aspect of calcite’s story.

化学的特性

Ground limestone consists essentially of calcium carbonate. It is obtained by crushing, grinding, and classifying naturally occurring limestone benefited by flotation and/or air classification. It is pro duced as a fine, white to off-white, microcrystalline powder. It is odorless and tasteless and is stable in air. It is practically insoluble in water and in alcohol. The presence of any ammonium salt or carbon dioxide increases its solubility in water, but the presence of any alkali hydroxide reduces the solubility.

化学的特性

Calcium carbonate is a white, odorless powder, or crystalline solid.

使用

Calcite is the primary mineral component in cave formations. Stalactites and stalagmites, cave veils, cave pearls, “soda straws” and the many other different cave formations that millions of visitors to underground caverns enjoy are made of calcite.

使用

Source of lime; neutralizing agent, filler, and extender in rubber, plastics, paints; opacifying agent in paper; fortification of bread; putty; tooth pow- ders; antacid; whitewash; Portland cement; sulfur dioxide removal from stack gases; metallurgical flux; analytical chemistry; carbon dioxide gener- ation (laboratory).

使用

Manufacture of quicklime, Portland cement, and paints. United States Pharmacopeia (USP) grades are used in dentifrices, cosmetics, food, and pharmaceuticals such as antacids.

製造方法

The calcite present is derived mostly from the remains of organisms such as clams, brachiopods, bryozoa, crinoids and corals. These animals live on the bottom of the sea and when they die their shells accumulate into piles of shelly debris. This debris can then form beds of limestone. Some limestones may have been derived from nonbiogenic calcite formation.

定義

Aragonite: An anhydrous mineral form of calcium carbonate, CaCO3, which occurs associated with limestone and in some metamorphic rocks. It is also the main ingredient of pearls. It is not as stable as calcite, into which it may change over time.
Calcite:A mineral form of calcium carbonate occurring in limestone, chalk, and marble.
Charlk: A natural form of calcium carbonate (CaCO3) formed originally by marine organisms. (Blackboard chalk is calcium sulfate, CaSO4.).

一般的な説明

Odorless, white to tan powder.

反応プロフィール

CALCIUM CARBONATE has generally low chemical reactivity. Is non-combustible. Decomposes at high temperature (825°C) to give gaseous carbon dioxide and calcium oxide (quicklime). Incompatible with acids, alum, ammonium salts, fluorine, magnesium. Reacts with acids and acidic salts to generate gaseous carbon dioxide with effervescence (bubbling). The reaction is rapid and exothermic with concentrated solutions of acids. The efferversence can create extensive foaming. Ignites on contact with fluorine.

危険性

A nuisance particulate dust.

健康ハザード

Calcium carbonate is considered to be a nuisance dust.
Although no adverse effects have been reported in the literature among workers exposed to calcium carbonate, high concentrations of the dust would be expected to act as a physical irritant to the eyes and skin.1 Fourteen British workers exposed to heavy calcium carbonate concentrations for 12–35 years showed no trace abnormalities due to dust or any clinical sign of pneumoconiosis or chronic bronchitis on X ray.2 Long exposure to high dust concentrations of pure calcium carbonate (quartz content less than 1.1%) did not result in lung fibrosis.

农业用途

Limestone or dolomite, used in agriculture for liming the soil, is ground to a fineness to ensure that 50% of the particles pass through a 1.70mm Indian Standards (IS) sieve, and 50% is retained on a 150micron IS sieve.

安全性プロファイル

A nuisance dust. An eye and skin irritant. Igmtes on contact with F2. Incompatible with acids, ammonium salts, (Mg + H2). Calcium carbonate is a common air contaminant. See also CALCIUM COMPOUNDS.

職業ばく露

Calcium carbonate is used as a source of lime; neutralizing agent; manufacturing or rubber, plastics, paint and coatings; sealants, paper, dentifrices, ceramics, putty, polishes and cleaners, insecticides, inks and cosmetics; whitewash; Portland cement; antacids; analytical chemistry, and others

不和合性

Calcium carbonate decomposes in high temperature forming carbon dioxide and corrosive materials

廃棄物の処理

Landfills. It is the responsibility of chemical waste generators to determine if a discarded chemical is classified as a hazardous waste. See 40 CFR Parts 261.3 for United States Environmental Protection Agency guidelines for the classification determination. In addition, in order to ensure complete and accurate classification, waste generators must consult state and local hazardous waste regulations.

炭酸カルシウム(II)(1:1) 上流と下流の製品情報

原材料

準備製品


炭酸カルシウム(II)(1:1) 生産企業

Global( 101)Suppliers
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1317-65-3(炭酸カルシウム(II)(1:1))キーワード:


  • 1317-65-3
  • PARIS WHITE
  • PRECIPITATED CHALK
  • CALCIUM CARBONATE 325
  • WHITING
  • lime stones
  • CHALK, PRECIPITATED
  • ENGLISH WHITE
  • KALKSPAR
  • ICELAND SPAR
  • GROUND LIMESTONE
  • FORMAXX(R) CALCIUM CARBONATE
  • CALCIUM (II) CARBONATE
  • CALCIUM CARBONATE, LIGHT
  • CALCITE
  • CALCII CARBONAS
  • ARAGONITE
  • CALCIUM CARBONATE FROM OYSTER SHELL
  • LIME STONE POWDER
  • CALCIUM CARBONATE (FOOD GRADE)
  • CALCIUM CARBONATE POWDER, 99.50(CACO3)
  • CALCIUM CARBONATE LIGHT (U-208)
  • CHALKPOWDER
  • MARBLEDUST
  • CALCIUMCARBONATEMINERAL
  • Calciumcarbonat
  • agricultural limestone
  • Agstone
  • bell mine pulverized limestone
  • domolite
  • flux lime
  • 炭酸カルシウム(II)(1:1)
  • 石灰石
  • 炭酸カルシウム
  • 方解石
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