Zinc stearate
- CAS No.
- 557-05-1
- Chemical Name:
- Zinc stearate
- Synonyms
- Synpro stearate;ZINC OCTADECANOATE;Talculin Z;Zinkstearat;stavinorzn-e;stearatedezinc;Coad;Mathe;Hytech;Hydense
- CBNumber:
- CB9677027
- Molecular Formula:
- C36H70O4Zn
- Molecular Weight:
- 632.33
- MOL File:
- 557-05-1.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/6/11 18:14:38
| Melting point | 128-130 °C (lit.) |
|---|---|
| Boiling point | 240℃[at 101 325 Pa] |
| Density | 1.095g/cm3 |
| vapor pressure | 0Pa at 25℃ |
| Flash point | 180℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | alcohol: insoluble(lit.) |
| form | Powder |
| color | White |
| Odor | wh. powd., faint char. odor |
| Water Solubility | Insoluble |
| Merck | 14,10158 |
| BRN | 3919706 |
| Exposure limits |
ACGIH: TWA 10 mg/m3; TWA 3 mg/m3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3 NIOSH: TWA 10 mg/m3; TWA 5 mg/m3 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| LogP | 4.64 at 25℃ |
| CAS DataBase Reference | 557-05-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Zinc(II) n-octadecanoate(557-05-1) |
| EPA Substance Registry System | Zinc stearate (557-05-1) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H413-H335-H400 | |||||||||
| Precautionary statements | P273-P391-P501 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 37 | |||||||||
| Safety Statements | 22-26-36/37/39-38-24/25 | |||||||||
| OEB | B | |||||||||
| OEL | TWA: 10 mg/m3 (total) | |||||||||
| WGK Germany | - | |||||||||
| RTECS | ZH5200000 | |||||||||
| Autoignition Temperature | 1454 °F | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29157090 | |||||||||
| Toxicity | LD50 oral in rat: > 10gm/kg | |||||||||
| NFPA 704 |
|
Zinc stearate price More Price(10)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 307564 | Zinc stearate technical grade | 557-05-1 | 1KG | ₹4882.08 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 307564 | Zinc stearate technical grade | 557-05-1 | 25G | ₹5022.8 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 307564 | Zinc stearate technical grade | 557-05-1 | 3KG | ₹9450.23 | 2022-06-14 | Buy |
| Sigma-Aldrich | 26423 | Zinc stearate purum, 10-12% Zn basis | 557-05-1 | 1KG | ₹4308.35 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 26423 | Zinc stearate purum, 10-12% Zn basis | 557-05-1 | 1KG | ₹4308.35 | 2022-06-14 | Buy |
Zinc stearate Chemical Properties,Uses,Production
Description
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.
Chemical Properties
Zinc stearate occurs as a fine, white, bulky, hydrophobic powder, free from grittiness and with a faint characteristic odor.
Uses
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.
Production Methods
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.
Application
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.
General Description
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.
Reactivity Profile
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
storage
Zinc stearate is stable and should be stored in a well-closed container in a cool, dry place.
Incompatibilities
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.
Zinc stearate Preparation Products And Raw materials
Raw materials
1of2
chevron_rightPreparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CHEMORGE JAIN | +91-9727716206 +91-9727716206 | Ahmedabad, India | 9 | 58 | Inquiry |
| Gangotri Inorganic Private Limited | +91-9725738888 +91-9898237777 | Gujarat, India | 33 | 58 | Inquiry |
| S.V ENTERPRISES | +919322701159 | Mumbai, India | 150 | 58 | Inquiry |
| MLA Industries | +919336432992 | Uttar Pradesh, India | 20 | 58 | Inquiry |
| Goldstab Organics Pvt. Ltd. | +919819990881 | Maharashtra, India | 24 | 58 | Inquiry |
| Sankalp Organics Pvt. Ltd | +919322341858 | Maharashtra, India | 10 | 58 | Inquiry |
| Dhara Industries | +91-9322395199 +91-9322395199 | Mumbai, India | 190 | 58 | Inquiry |
| Chopra Organics pvt Ltd | +91-9953037451 +91-9810057451 | New Delhi, India | 2 | 58 | Inquiry |
| Shristab Pvt Ltd | +91-9414179987 +91-9414190109 | Rajasthan, India | 13 | 58 | Inquiry |
| Shubham Industries | +91-9825503596 +91-9825058625 | Gujarat, India | 4 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| CHEMORGE JAIN | 58 |
| Gangotri Inorganic Private Limited | 58 |
| S.V ENTERPRISES | 58 |
| MLA Industries | 58 |
| Goldstab Organics Pvt. Ltd. | 58 |
| Sankalp Organics Pvt. Ltd | 58 |
| Dhara Industries | 58 |
| Chopra Organics pvt Ltd | 58 |
| Shristab Pvt Ltd | 58 |
| Shubham Industries | 58 |
557-05-1(Zinc stearate)Related Search:
1of4
chevron_right