関: aluminum monostearate、magnesium stearate、octadecanoic acid、stearate、stearic acid

WordNet

a white metallic element that burns with a brilliant light; the fifth most abundant element in the earths crust; an important component of most plants and animals (同)Ca, atomic number 20

PrepTutorEJDIC

『カルシウム』(金属元素;化学記号は『Ca』)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/13 17:13:37」(JST)

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Calcium stearate is carboxylate of calcium that is found in some lubricants and surfactants. It is a white waxy powder.^[1]

Production and occurrence

Calcium stearate is produced by heating stearic acid, a fatty acid, and calcium oxide:

2 C₁₇H₃₅COOH + CaO → (C₁₇H₃₅COO)₂Ca + H₂O

It is also the main component of soap scum, a white solid that forms when soap is mixed with hard water.^[2] Unlike soaps containing sodium and potassium, calcium stearate is insoluble in water and does not lather well.^{[citation needed]} Commercially it is sold as a 50% dispersion in water or as a spray dried powder. As a food additive it is known by the generic E number E470.

Applications

Calcium stearate is used as a flow agent in powders including some foods (such as Smarties), a surface conditioner in hard candies such as Sprees, a waterproofing agent for fabrics, a lubricant in pencils and crayons.
The concrete industry uses calcium stearate for efflorescence control of cementitious products used in the production of concrete masonry units i.e. paver and block, as well as waterproofing.^[3]
In paper production, calcium stearate is used as a lubricant to provide good gloss, preventing dusting and fold cracking in paper and paperboard making.^[4]
In plastics, it can act as an acid scavenger or neutralizer at concentrations up to 1000ppm, a lubricant and a release agent. It may be used in plastic colorant concentrates to improve pigment wetting. In rigid PVC, it can accelerate fusion, improve flow, and reduce die swell.
Applications in the personal care and pharmaceutical industry include tablet mold release, anti-tack agent, and gelling agent.
Calcium stearate is a component in some types of defoamers.

References

^ Angelo Nora, Alfred Szczepanek, Gunther Koenen “Metallic Soaps” in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. doi:10.1002/14356007.a16_361
^ Hermann Weingärtner, "Water" in Ullmann's Encyclopedia of Industrial Chemistry, 2007, Wiley-VCH, Weinheim. doi:10.1002/14356007.a28_001
^ Preventing Efflorescence, Portland Cement Association
^ US 5527383

UpToDate Contents

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1. 思春期におけるカルシウムの所要量 calcium requirements in adolescents
2. 骨粗鬆症におけるカルシウムおよびビタミンDの補充 calcium and vitamin d supplementation in osteoporosis
3. 副甲状腺ホルモンの分泌および作用 parathyroid hormone secretion and action
4. 成人における再発性カルシウム結石の予防 prevention of recurrent calcium stones in adults
5. 成人におけるカルシウム結石の危険因子 risk factors for calcium stones in adults

English Journal

Investigation of caking by fat bridging in aged infant formula.

Tham TW1, Xu X1, Yeoh AT2, Zhou W3.
Food chemistry.Food Chem.2017 Mar 1;218:30-39. doi: 10.1016/j.foodchem.2016.09.043. Epub 2016 Sep 8.
Three commercial infant formulas (denoted as P1, P2 and P3) were stored at 25, 45 and 60°C for up to 6weeks to study the caking phenomenon caused by fat bridging. At 60°C, both the surface free-fat content and the caking strength increased significantly. Analysis of the fatty acid composition of P
PMID 27719913

Determination of free fatty acids in beer.

Bravi E1, Marconi O2, Sileoni V3, Perretti G3.
Food chemistry.Food Chem.2017 Jan 15;215:341-6. doi: 10.1016/j.foodchem.2016.07.153. Epub 2016 Jul 29.
Free fatty acids (FFA) content of beer affects the ability to form a stable head of foam and plays an important role in beer staling. Moreover, the presence of saturated FAs is related sometimes to gushing problems in beer. The aim of this research was to validate an analytical method for the determ
PMID 27542484

To postpone the precipitation of manganese oxides in the degradation of tetrachloroethylene by controlling the permanganate concentration.

Yang W1, Qiu Z1, Zhao Z1, Lu S1, Sui Q1, Gu X1.
Environmental technology.Environ Technol.2017 Jan;38(1):34-41. Epub 2016 May 18.
Controlled-release permanganate (CRP) is a relatively new technology used to treat contaminated groundwater. This study tested the encapsulation of permanganate using stearic acid to realize controlled-release properties. Batch experiments were conducted to investigate the performance of manganese o
PMID 27149929

Japanese Journal

各種直打用賦形剤の流動性指数とせん断試験による評価

粉体工学会誌 51(2), 77-87, 2014
NAID 130004545881

Synergism of pentaerythritol-zinc with β-diketone and calcium stearate in poly(vinyl chloride) thermal stability

Polymer journal 45(7), 775-782, 2013-07-15
NAID 10031182196

種々の特性を有するショ糖脂肪酸エステルの滑沢剤としての有用性評価

粉体工学会誌 47(6), 388-393, 2010-06-10
NAID 10026443619

Related Pictures

★リンクテーブル★

リンク元	「aluminum monostearate」「ステアリン酸カルシウム」「magnesium stearate」「octadecanoic acid」
関連記事	「stearate」「calcium」

「aluminum monostearate」

Calcium stearate
Names
	IUPAC name Calcium octadecanoate
	Other names E470
Identifiers
CAS Registry Number	1592-23-0
ChEMBL	ChEMBL2106092
ChemSpider	14587
	InChI InChI=1S/2C18H36O2.Ca/c21-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h22-17H2,1H3,(H,19,20);/q;;+2/p-2 ; Key: CJZGTCYPCWQAJB-UHFFFAOYSA-L ; InChI=1/2C18H36O2.Ca/c21-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h22-17H2,1H3,(H,19,20);/q;;+2/p-2; Key: CJZGTCYPCWQAJB-NUQVWONBAL ;
Jmol-3D images	Image
PubChem	15324
	SMILES [Ca+2].[O-]C(=O)CCCCCCCCCCCCCCCCC.[O-]C(=O)CCCCCCCCCCCCCCCCC ;
UNII	776XM7047L
Properties
Chemical formula	C36H70CaO4
Molar mass	607.03 g·mol−1
Appearance	white to yellowish-white powder
Density	1.08 g/cm3
Melting point	155 °C (311 °F; 428 K)
Solubility in water	0.004 g/100 mL (15 °C)
Solubility	soluble in hot pyridine; slightly soluble in oil; insoluble in alcohol, ether
Hazards
NFPA 704	1 2 0
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references