Emulsifier SG-100 (PEG-100 Stearate), chemically named polyoxyethylene (100) stearate, appears as a white to slightly yellow waxy solid and belongs to non-ionic surfactants. Its molecular structure consists of a hydrophilic polyoxyethylene long chain (100 EO units) and a lipophilic stearate group, giving the product excellent emulsifying and wetting abilities, especially suitable for use as an oil-in-water (O/W) emulsifier.
This product has stable chemical properties, excellent resistance to acids, alkalis, and hard water, allowing it to maintain a stable emulsifying effect in various complex formulation systems without being affected by water quality or pH conditions. This feature is particularly important in industrial applications, as it can significantly broaden its usage scenarios and reduce the need to add additional chelating agents or pH buffers in formulations.
In terms of safety, SG-100 performs excellently: it is not a hazardous chemical, exhibits no significant skin irritation, no sensitization, no genotoxicity, acute oral toxicity is practically non-toxic (rat LD₅₀ > 5000 mg/kg), and it is readily biodegradable (OECD 301 method, 28-day degradation rate > 60%), making it an environmentally friendly raw material.
| Parameter Item | Parameter Value |
|---|---|
| Chemical Name | Polyoxyethylene (100) stearate |
| CAS Number | 9004-99-3 |
| Ionic Type | Non-ionic |
| Appearance | White to slightly yellow waxy solid |
| HLB Value | Not available (further measurement required) |
| Cloud Point | Not available (further measurement required) |
| Hydroxyl Value | Not available (further measurement required) |
| Acute Oral Toxicity (Rat) | LD₅₀ > 5000 mg/kg (practically non-toxic) |
| Skin Irritation | No significant irritation (irritation index < 0.5) |
| Biodegradability | Readily biodegradable (28-day degradation rate > 60%) |
| Ecotoxicity (Fish 96h) | LC₅₀ > 100 mg/L |
| Storage Temperature | 5°C to 40°C |
Emulsifier SG-100, with its excellent properties, has a wide range of applications in various industries: