Manganese Stearate

• CAS: 3353-05-7
• Catalog Number: ACM3353057-1
• Category: Main Products
• Molecular Weight: 621.88
• Molecular Formula: C36H70MnO4
• Synonyms: Stearic acid, manganese salt
• IUPAC Name: manganese(2+);octadecanoate
• SMILES: CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Mn+2]
• InChI Key: SZINCDDYCOIOJQ-UHFFFAOYSA-L
• Boiling Point: 359.4ºC at 760mmHg
• Flash Point: 162.4ºC
• Active Content: 95%
• EC Number: 222-119-9
• Exact Mass: 621.46500
• Physical State: Solid

Case Study

Manganese Stearate as a High-Efficiency Pro-oxidant Additive for Accelerating HDPE Degradation

Maryudi, Maryudi, et al. Jurnal Teknologi (Sciences & Engineering) 79.7 (2017).

High-density polyethylene (HDPE) is widely used but persists in the environment. Pro-oxidant additives-metal carboxylates that promote oxidative chain scission-are one route to speed up polymer breakdown in ambient conditions. This study compared three manganese salts (laurate, palmitate and stearate) incorporated into HDPE to evaluate their effect on natural-weathering degradation.
Sample preparation: HDPE resin was compounded with 0-1.0 wt% of manganese stearate (comparative sets with manganese laurate and palmitate were prepared). Blends were dried (80 °C, 6 h), melt-compounded on a co-rotating twin-screw extruder at 200 °C, pelletized, dried (80 °C, 2 h) and injection-molded into ASTM D638-08 Type V specimens (molding at 200 °C).
Key Results
· Samples containing pro-oxidants developed carbonyl peaks more rapidly than neat HDPE, consistent with accelerated oxidative degradation.
· Strain-at-break declined with weathering and with increasing additive loading. A neat HDPE sample lost 64% of its initial strain at break after natural exposure, while samples with 1 wt% pro-oxidant additives lost 93-95% of initial strain, showing much greater embrittlement.
· Average molecular weight of formulations containing additives decreased significantly, compared with unfilled HDPE, indicating enhanced chain scission.
· Among the three manganese salts tested, manganese stearate gave the strongest accelerating effect on HDPE degradation. The degree of acceleration increased with additive concentration.

Preparation of a Biomimetic Manganese Stearate Superhydrophobic Surface and Its Anti-Biofouling Application

Zhang, Binbin, et al. Chemical Engineering Journal 306 (2016): 441-451.

The dual threat of marine corrosion and microorganism-induced biofouling requires a comprehensive solution that can withstand harsh oceanic conditions. In this work, manganese stearate served as the electrochemically deposited organometallic species that builds the surface chemistry and contributes to the low surface energy and hierarchical structured superhydrophobic (SHPB) surfaces. The electrodeposition process yields a manganese stearate-based film composed of nanosheet papillae and aggregated microclusters that together produce the dual-scale roughness critical for water repellency and barrier performance.
Key Performance of the Manganese Stearate SHPB Films
· Extreme water repellency: static contact angle = 169.7° ± 2.1°; sliding angle ≈ 1.8° ± 0.5°.
· Corrosion protection: corrosion potential shifted positively from -1.098 V (bare Al) to -0.743 V (SHPB surface). Corrosion current density dropped from 1.197×10^-7 A·cm^-2 for bare Al to 3.711×10^-11 A·cm^-2 for the SHPB manganese stearate surface - a reduction of more than four orders of magnitude.
· Electrochemical inhibition: charge-transfer resistance-based inhibition efficiency reached 99.999% (reported as the highest value in the cited literature).
· Anti-biofouling: immersion in Chlorella vulgaris-inoculated medium demonstrated strong suppression of algal fouling on the treated surface relative to controls.
· Chemical stability: the SHPB manganese stearate coating retained superhydrophobicity after exposure to strongly acidic and strongly alkaline environments.

Custom Q&A

What is the molecular formula of manganese stearate?

The molecular formula of manganese stearate is C36H70MnO4.

What are the synonyms for manganese stearate?

The synonyms for manganese stearate are Manganese(II) stearate and manganese(2+);octadecanoate.

What is the molecular weight of manganese stearate?

The molecular weight of manganese stearate is 621.9 g/mol.

What is the parent compound of manganese stearate?

The parent compound of manganese stearate is stearic acid (CID 5281).

What are the component compounds of manganese stearate?

The component compounds of manganese stearate are stearic acid (CID 5281) and manganese (CID 23930).

When was manganese stearate created?

Manganese stearate was created on August 8, 2005.

When was manganese stearate last modified?

Manganese stearate was last modified on October 21, 2023.

What is the IUPAC name of manganese stearate?

The IUPAC name of manganese stearate is manganese(2+);octadecanoate.

What is the InChIKey of manganese stearate?

The InChIKey of manganese stearate is SZINCDDYCOIOJQ-UHFFFAOYSA-L.

What is the CAS number of manganese stearate?

The CAS number of manganese stearate is 3353-05-7.