Trimethylstearylammonium Chloride is a cationic quaternary ammonium surfactant and antistatic agent extensively utilized as a conditioner and softener in hair care and textile formulations. Widely recognized in the chemical sector as Steartrimonium chloride or STAC, this surface-active compound functions as a substantive conditioning agent, improving combability in shampoos and reducing static electricity in fiber processing. We offer this industrial-grade cationic ingredient with competitive factory pricing to support personal care and textile manufacturing. Our supply chain ensures consistent bulk supply availability and customized specifications, fully accompanied by MSDS, TDS, COA documentation for strict safety management and regulatory compliance.
Trimethylstearylammonium Chloride CAS 112-03-8
- CAS: 112-03-8
- Synonyms: Steartrimonium chloride, STAC, Octadecyltrimethylammonium chloride, Stearyl trimethyl ammonium chloride, 1-Octadecanaminium N,N,N-trimethyl- chloride
- Molecular Formula: C21H46ClN
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
Trimethyloctadecyl ammonium chloride
Alias：Stearytrimethylammonium chloride， Octadecyl trimethane chloride Asphalt emulsifier NOT
chemical formula：C21H46ClN
molecular weight：348.05
CAS login number：112-03-8
water solubility：It is easily soluble in water
Density：0.884
Appearance：White waxy substance
Flash point：180 ℃
Linear formula：MFCD00050188
purity：>97.0%
Properties and stability
It has excellent stability, surface activity, emulsification, sterilization, disinfection, softness, and antistatic properties.
Storage method
1. Store in a cool and ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight.
2. Keep the container sealed. Should be with oxidant, acids are stored separately, and mixed storage must not be mixed. Equipped with corresponding varieties and quantities of fire-fighting equipment.
3. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.
use
1. Used as Textile fibers target Antistatic, hair conditioner,bitumen, rubber and silicone oil emulsifier. and widely used in Disinfectant fungicide。
2. Generally use active substances greater than 3 to 4% of the use Asphalt emulsifier, soil waterproofing agent. Other specifications are used as synthetic fiber antistatic agents, oil paint cosmetics additives, hair conditioners,Disinfectant fungicide, fabric fibers Softener, soft detergents, silicone oil emulsifiers, etc.
FAQ - Technical & Supply Chain
-
Q:
Does this product represent the specific C18 Stearyl chain length or a mixed Alkyl blend?
A: This material is verified under CAS 112-03-8 as the specific C18 homologue (Octadecyltrimethylammonium chloride), distinguishing it from mixed Cetrimonium (C16/C18) blends to ensure precise melting points and formulation consistency. -
Q:
What key mechanism makes this surfactant effective for textile and cosmetic applications?
A: This chemical is typically applied as a conditioning agent because its positive charge allows it to substantively bond with negatively charged substrates like hair keratin or cellulose fibers, thereby imparting softness and antistatic properties.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
