Overview chemical properties Anti-caking agent Identification test Content analysis Toxicity Limitation of utilization Uses Production methods Toxicity grading Acute toxicity
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Calcium stearate

Overview chemical properties Anti-caking agent Identification test Content analysis Toxicity Limitation of utilization Uses Production methods Toxicity grading Acute toxicity
Product Name
Calcium stearate
CAS No.
1592-23-0
Chemical Name
Calcium stearate
Synonyms
CALCIUM OCTADECANOATE;g339s;HyQual;aquacal;calstar;flexichem;Deasit PC;stavinor30;witcog339s;硬脂酸钙生产厂家价格
CBNumber
CB0115597
Molecular Formula
C36H70CaO4
Formula Weight
607.02
MOL File
1592-23-0.mol
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Calcium stearate Property

Melting point:
147-149°C
Density 
1.08g/cm3
vapor pressure 
0Pa at 25℃
storage temp. 
Store at +5°C to +30°C.
solubility 
Soluble in hot pyridine, slightly soluble in oil, but insoluble in alcohol and ether.
form 
Powder
color 
white
PH
7-9 (2.2 mg/l, H2O, 20°C)
Odor
Fatty acid odor
Water Solubility 
insoluble H2O, ether, chloroform; slightly soluble hot mineral oils [MER06]
Merck 
14,1703
BRN 
3919698
Exposure limits
ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
Stability:
Hygroscopic
InChIKey
CJZGTCYPCWQAJB-UHFFFAOYSA-L
LogP
3.82-14.34 at 25℃
CAS DataBase Reference
1592-23-0(CAS DataBase Reference)
EPA Substance Registry System
Calcium stearate (1592-23-0)
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Safety

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
22-24/25-36-26
WGK Germany 
-
RTECS 
WI3000000
Autoignition Temperature
460 °C DIN 51794
TSCA 
Yes
HS Code 
29157030
Hazardous Substances Data
1592-23-0(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 10000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
1.00664
Product name
Parteck LUB CST
Purity
(Calcium stearate vegetable grade), EMPROVE? ESSENTIAL, Ph. Eur., BP, JP, NF, FCC
Packaging
250G
Price
$142
Updated
2024/03/01
Sigma-Aldrich
Product number
1.00664
Product name
Parteck LUB CST
Purity
(Calcium stearate vegetable grade), EMPROVE? ESSENTIAL, Ph. Eur., BP, JP, NF, FCC
Packaging
20KG
Price
$1341
Updated
2024/03/01
Alfa Aesar
Product number
039423
Product name
Calcium stearate
Packaging
1kg
Price
$55.9
Updated
2024/03/01
Alfa Aesar
Product number
039423
Product name
Calcium stearate
Packaging
5kg
Price
$156.65
Updated
2024/03/01
Strem Chemicals
Product number
93-2045
Product name
Calcium stearate, min. 85%
Packaging
100g
Price
$24
Updated
2024/03/01
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Calcium stearate Chemical Properties,Usage,Production

Overview

Calcium stearate also known as calcium octadecanoic acid. Light white crystalline powder. Chemical formula (C17H35COO) 2Ca. The molecular weight is 607.00. Melting point 179~180 ℃, decomposed by heat. Insoluble in water, cold ethanol and diethyl ether, soluble in hot benzene, toluene, and turpentine, slightly soluble in hot ethanol and diethyl ether. It reacts with strong acid to be decomposed into stearic acid and corresponding calcium salt. Water absorption in the air. Intolerance lipolytic microorganisms. Pyrolysis to generate stearin ketones and hydrocarbons. Non-toxic. Industrial often mixed with the corresponding oleate.As stabilizers and lubricants of polyvinyl chloride; as halogen absorbent of polyethylene and polypropylene; as lubricants of polyolefin fibers and molded products; as lubricant and release agent of phenolic, amino and other thermosetting plastics; as intensifier of lubricating grease; as waterproofing agent of waterproof fabric; etc. Food grade Calcium stearate serves as an anti-caking agent. Dilute soap is made by the reaction of melt stearic acid and sodium hydroxide, reacting with calcium chloride, and Calcium stearate is obtained .

It can be used as heat stabilizer of polyvinyl chloride, it has excellent lubricity. Thermal stability performance is general, and is less than barium stearate, lead stearate, tin stearate and cadmium stearate. But it is cheap, low toxicity, good processability. Combined with Zinc soap and an epoxy compound, it shows a synergistic effect, improving the thermal stability, and it is commonly used for requirements nontoxic soft products, such as food packaging films, medical instruments, etc. It combines with the base lead salts and lead soaps used for hard products, increasing the gelation speed. Calcium stearate is used for polyethylene and polypropylene, and it can eliminate the adverse effects of residual catalyst on the resin color and stability. This product is also widely used as lubricant and release agent of thermosetting plastics, such as polyolefin, polyester reinforced plastics, phenolic resin, amino resin, etc.
The disadvantage of Calcium stearate is initial color. When heating at above 100 ℃ with longer time, Calcium stearate will make the white PVC become a reddish color. Particularly when titanium dioxide exists in formula, coloring is particularly serious. At this point, if 0.06~0.12% Na2CO3 or 0.09~0.19 NaHCO3 are added, it can overcome this shortcoming. But because these substances are too alkaline, they are not used in practice. In addition, when the amount of this product is large, there is segregation scaling phenomenon.

chemical properties

Calcium stearate is an odorless, white powder, Insoluble in water, slightly soluble in hot ethanol. It used in many manufacturing processes and preparations. Also known as calcium salt and octadecanoic acid, it is a carboxylate created by heating stearic acid and calcium oxide.
Calcium stearate has many potential uses, including as a flow agent, stabilizing agent and surface conditioner in the production of certain foods — notably, many candies. It is used as a mold-release agent for pharmaceutical tablets and capsules, as an anti-caking agent in cosmetics and as a thickener in lubricants and greases. It is also a stabilizer found in many plastics and is used to process concrete and paper.

Anti-caking agent

Anti-caking agent, also known as caking inhibitor, is used to prevent the particles and powdered food from aggregation and agglomeration, maintaining its loose or free flowing substances. Its particles is tiny, loose porous and strong adsorption. It easily absorbs the water and oil which lead to the formation of agglomerates, making food to maintain a powder or granules state.
There are five species of anti-caking agent which are permitted to be used in China: potassium ferrocyanide, sodium aluminosilicate, tricalcium phosphate, silica and microcrystalline cellulose.
Anti-caking agents are varied, in addition to five kinds which are permitted in China, aluminum, silica, calcium silicate, Calcium stearate, magnesium carbonate, magnesium stearate, magnesium, magnesium phosphate, magnesium silicate, kaolin, talc and ferrocyanide are permitted to be used in Foreign. In addition, they have anti-caking effect, and some also have other effects, for example, calcium silicate and kaolin also has the function of filter aids, and Calcium stearate and magnesium stearate have emulsifying effect. And in addition that ferrocyanide has limited ADI value, security of other varieties are very good, ADI values are no provisions. Based on requirement, proper developments are still needed.

Identification test

Taking 1 g sample, mixed with 25ml and 5ml hydrochloric acid water, heating, fatty acids are released, so that oily layer floats in the surface of the liquid. Water layer is used for calcium test (IT-10), and it should be positive.
Taking 25 g sample, mixed with 200 ml hot water, added sulfuric acid test solution (TS-241) 60ml, heating and vigorous stirring to precipitate fatty acid, there is clear liquid. Fatty washed with boiling water, until the sulfates is divisible, collected in a small beaker, warmed on a steam bath to completely separate the fatty acid from the aqueous layer, and kept clear. Cooled and discarded the aqueous layer, the fatty acid melted and filtered-dried beaker, dried at 105 ℃ for 20min. The freezing point of purified fatty acid should not be less than 54 ℃. Freezing point is determined by conventional methods.

Content analysis

About 1.2 g sample is accurately weighed, added 0.1 mol/L hydrochloric acid, boiled 10min, or until the fatty layer is clear, if necessary, adding water to maintain the original volume. Cooled and filtered, the filtrate and flask was washed thoroughly with water until last washing liquor is no longer acidic to litmus. Filtrate is treated with sodium hydroxide solution (TS-224.) and it is neutral to litmus. Under sufficiently stirred with a magnetic stirrer, about 30ml 0.05mol/L disodium EDTA is added via a 50ml burette, adding 15ml sodium hydroxide solution and 300 mg hydroxy naphthol blue indicator, and continuing the titration to a blue endpoint. Per milliliter 0.05mol/L disodium EDTA is equivalent 2.804 mg CaO.

Toxicity

ADI unrestrictive provision (FAO/WHO,2001).
GRAS(FDA,§184.1229, 2000).

Limitation of utilization

FAO/WHO (1984): coated with glucose powder, sucrose powder and stock cube, etc. 15g/kg.
GB 2760-1996: chewing gum base, GMP limit.
In USA, it is used for beet sugar, pressed candies, garlic salt, meat tenderizer, dry molasses, salad prefabricated powder, spice powder, yeast.

Uses

As non-toxic stabilizers and lubricants, mold release agents of polyvinyl chloride and water repellent of textiles.
As lubricant of coating paper and paint.
As internal lubricant and non-toxic stabilizers of polyvinyl chloride, and as mold release agents of the foundry industry.
Anti-caking agent; adhesive; emulsifier; lubricants; mold release agents; stabilizers; thickeners; flavoring agents.
As stabilizers and lubricants of polyvinyl chloride, and as non-toxic food packaging, medical devices and other soft film containers. As halogen absorbent of polyethylene and polypropylene, it can eliminate residual catalyst in resin. As lubricant of resin colors and molding products, but also as release agents of phenolic, amino thermosetting plastic and plastics and lubricant of polyester reinforced plastic, as thickening agent of grease, waterproofing agents of textile and flatting agent of paint. Food grade Calcium stearate can serve as an anti-caking agent to prevent powdered or crystalline food from aggregation and agglomeration, keeping free-flowing. But China's GB2760-86 allowing the use of anti-caking agent is currently only potassium ferrocyanide which is used for salt. According to the FAO/WHO regulations, Calcium stearate can be used for coating glucose powder, sucrose powder and stock cube, etc. , the maximum allowable amount is15 g/kg.
As a waterproofing agent, lubricant and plastic additives. It is widely used in food, medicine, cosmetics, plastics and rubber industries, mainly used for lubricants, emulsifiers, stabilizers, release agents, accelerators, cosmetic base materials. In the rigid plastics, it can increase the speed of the condensate. It can also be used for food packaging, medical devices and other non-toxic flexible film, but also has the effect of stabilizing agent and good long-term stability. As stabilizers and lubricants of polyethylene and polyvinyl chloride. As halogen absorbent of polyethylene and polypropylene, it can eliminate the adverse effects of residual resin on catalyst resin color and stability. It widely used to improve the heat resistance of plastic in foreign countries, improving weather resistance initial color and breathability. It will replace the toxic stabilizers with same performance.

Production methods

Firstly melted stearic acid reacts with sodium hydroxide solution to form a dilute soap, then reacted with calcium chloride, Calcium stearate crude is obtained, followed by washed, swirling water, drying, finished product is obtained. Kg/ton stearate, 920 sodium hydroxide (100% discount) 140 Calcium chloride (100% discount) 400.
After food grade sodium stearate interacts with calcium chloride solution, follow by filtered and refined.

Toxicity grading

Low toxicity

Acute toxicity

Oral-rat LD50:> 10000 mg/kg; Oral-mouse LD50:> 10000 mg/kg.

Chemical Properties

Calcium stearate occurs as a fine, white to yellowish-white, bulky powder having a slight, characteristic odor. It is unctuous and free from grittiness. It is found in some lubricants and surfactants.

Uses

Calcium Stearate is the calcium salt of stearic acid which functions as an anticaking agent, binder, and emulsifier. it is used in garlic salt, dry molasses, vanilla and vanilla-vanillin powder, salad dressing mix, and meat tenderizer. it can be used for mold release in the tableting of pressed candies.

Production Methods

Calcium stearate is prepared by the reaction of calcium chloride with a mixture of the sodium salts of stearic and palmitic acids. The calcium stearate formed is collected and washed with water to remove any sodium chloride.

Application

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.
In paper production, calcium stearate is used as a lubricant to provide good gloss, preventing dusting and fold cracking in paper and paperboard making.
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.

Preparation

Calcium stearate is produced by heating stearic acid, a fatty acid, and calcium oxide:
2C17H35COOH + 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. Unlike soaps containing sodium and potassium, calcium stearate is insoluble in water and does not lather well . 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. .

Definition

Calcium Stearate is an insoluble salt of octadecanoic acid. It is formed as "scum" when SOAP, containing the soluble salt sodium octadecanoate, is mixed with hard water containing calcium ions. Variable proportions of calcium stearate and calcium palmitate.

Hazard

A nuisance dust.

Flammability and Explosibility

Not classified

Pharmaceutical Applications

Calcium stearate is primarily used in pharmaceutical formulations as a lubricant in tablet and capsule manufacture at concentrations up to 1.0% w/w. Although it has good antiadherent and lubricant properties, calcium stearate has poor glidant properties.
Calcium stearate is also employed as an emulsifier, stabilizing agent, and suspending agent, and is also used in cosmetics and food products.

Safety Profile

A nuisance dust. When heated to decomposition it emits acrid smoke and irritating fumes.

Safety

Calcium stearate is used in oral pharmaceutical formulations and is generally regarded as a relatively nontoxic and nonirritant material.

storage

Calcium stearate is stable and should be stored in a well-closed container in a cool, dry place.

Regulatory Status

GRAS listed. Included in the FDA Inactive Ingredients Database (oral capsules and tablets). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

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Calcium stearate Suppliers

Nanjing Jinling Chemical Factory
Tel
025-58368187
Email
18915903007@139.com
Country
CHINA
ProdList
1
Advantage
58
Shandong Huishengtang Biological Medicine Co., Ltd.
Tel
0533-8082186 18853399702
Email
1781022510@qq.com
Country
China
ProdList
20
Advantage
58
Beijing XinaoXunchi Chemical CO., LTD
Tel
010-89340150 13651234369
Fax
010-89340150
Email
hdcfssl@sina.com
Country
China
ProdList
53
Advantage
58
SHANDONGQIANGSENHUAGONG
Tel
0533-18369966222-222 18369966222
Email
3034942636@qq.com
Country
China
ProdList
922
Advantage
58
wuhan geeyeschem chemical
Tel
027-18502765 18502765281
Email
3410849474@qq.com
Country
China
ProdList
1608
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
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View Lastest Price from Calcium stearate manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Calcium Stearate 1592-23-0
Price
US $30.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-04-30
WUHAN FORTUNA CHEMICAL CO., LTD
Product
Calcium stearate 1592-23-0
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-01-16
Shandong Deshang Chemical Co., Ltd.
Product
Calcium stearate 1592-23-0
Price
US $10.00-7.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
10 tons
Release date
2024-06-13

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