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스테아린산아연

스테아린산아연
스테아린산아연 구조식 이미지
카스 번호:
557-05-1
한글명:
스테아린산아연
동의어(한글):
디베이직아연스테아르산염;스테아릭산,아연염;스테아린산아연;아연디스테아르산염;아연스테아린산;아연옥타데칸산염;옥타데칸산,아연염;아연스테아르산염;옥타데칸산,아연염;아연디스테아르산염;디베이직아연스테아;징크스테아레이트;아연스테아린산
상품명:
Zinc stearate
동의어(영문):
Coad;Mathe;Hytech;Hydense;Metallac;Synpro 8;Zinc(II);Dermarone;ai3-00388;talculinz
CBNumber:
CB9677027
분자식:
C36H70O4Zn
포뮬러 무게:
632.33
MOL 파일:
557-05-1.mol

스테아린산아연 속성

녹는점
128-130 °C(lit.)
밀도
1.095g/cm3
인화점
180℃
용해도
alcohol: insoluble(lit.)
물리적 상태
Powder
색상
White
수용성
Insoluble
Merck
14,10158
BRN
3919706
안정성
Stable. Incompatible with strong oxidizing agents.
CAS 데이터베이스
557-05-1(CAS DataBase Reference)
NIST
Zinc(II) n-octadecanoate(557-05-1)
EPA
Zinc stearate (557-05-1)

안전

위험품 표기 Xi
위험 카페고리 넘버 37
안전지침서 22-26-36/37/39-38-24/25
WGK 독일 -
RTECS 번호 ZH5200000
자연 발화 온도 1454 °F
TSCA Yes
HS 번호 29157090
유해 물질 데이터 557-05-1(Hazardous Substances Data)
독성 LD50 oral in rat: > 10gm/kg

스테아린산아연 MSDS


Zinc distearate

스테아린산아연 C화학적 특성, 용도, 생산

개요

Zinc stearate is a "zinc soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal "salt" of a fatty acid. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., benzene and chlorinated hydrocarbons) when heated. It is the most powerful mold release agent among all metal soaps. It contains no electrolyte and has a hydrophobic effect. Its main application areas are the plastics and rubber industry where it is used as a releasing agent and lubricant which can be easily incorporated.
Zinc carboxylates, e.g. basic zinc acetate, adopt complex formulas, and are not simply dicarboxylates of zinc. Instead the formula for most zinc carboxylates is Zn4O(O2CR)6, consisting of a Zn4O6+ core with carboxylate ligands spanning the edges.

화학적 성질

white powder with fatty acid odour

화학적 성질

Zinc stearate occurs as a fine, white, bulky, hydrophobic powder, free from grittiness and with a faint characteristic odor.

용도

Used in Rubber, Plastic, Poyester, Abbrasive, Coating, Printing Inks and PVC Industry.

용도

In tablet manufacture; in cosmetic and pharmaceutical powders and ointments; as a flatting and sanding agent in lacquers; as a drying lubricant and dusting agent for rubber; as a plastic mold releasing agent; as a waterproofing agent for concrete, rock wool, paper, textiles.

용도

zinc stearate is used in cosmetic formulations to increase adhesive properties. It is also used as a coloring agent. This is a mixture of the zinc salts of stearic and palmitic acids.

주요 응용

It is widely used as a release agent for the production of many kinds of objects rubber, poly urethane, poly ester processing system, powder metallurgy. These applications exploit its "non-stick" properties . In cosmetics, zinc stearate is a lubricant and thickening to improve texture.
It is an "activator" for rubber vulcanization by sulfur and accelerators. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin. The stearate is a form of zinc that is highly soluble in the nonpolar medium of the poly olefins.
Being lipophilic, it functions as a phase transfer catalyst for the saponification of fats.

생산 방법

An aqueous solution of zinc sulfate is added to sodium stearate solution to precipitate zinc stearate. The zinc stearate is then washed with water and dried. Zinc stearate may also be prepared from stearic acid and zinc chloride.

일반 설명

White, hydrophobic powder with a slight, characteristic odor. Mp: 130°C. Density: 1.1 g cm-3. Insoluble in water, ethyl alcohol and diethyl ether. Soluble in acids. Non-toxic. In technical grades, the percentage of zinc may vary according to the intended use. Products with less than the theoretical amount of zinc are more acidic.

반응 프로필

Zinc stearate is non-flammable but combustible. Incompatible with oxidizing agents, dilute acids. Emits acrid smoke and fumes of ZnO when heated to decomposition (Hazardous Chemicals Desk Reference, p. 865 (1987)).

Pharmaceutical Applications

Zinc stearate is primarily used in pharmaceutical formulations as a lubricant in tablet and capsule manufacture at concentrations up to 1.5% w/w. It has also been used as a thickening and opacifying agent in cosmetic and pharmaceutical creams, and as a dusting powder.

Safety Profile

Poison by intratracheal route. Inhalation of zinc stearate has been reported as causing pulmonary fibrosis. A nuisance dust. Combustible when exposed to heat or flame. To fight fire, use water, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of ZnO. See also ZINC COMPOUNDS.

Safety

Zinc stearate is used in oral and topical pharmaceutical formulations, and is generally regarded as a nontoxic and nonirritant excipient. However, following inhalation, it has been associated with fatal pneumonitis, particularly in infants. As a result, zinc stearate has now been removed from baby dusting powders.
LD50 (rat, IP): 0.25 g/kg

저장

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

비 호환성

Zinc stearate is decomposed by dilute acids. It is incompatible with strong oxidizing agents.

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.

스테아린산아연 준비 용품 및 원자재

원자재

준비 용품


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