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| Chemical Name | Trimethylstearylammonium Chloride |
| CAS Number | 112-03-8 |
| Molecular Formula | C21H46ClN |
| Molecular Weight | 348.06 |
| EINECS Number | 203-929-1 |
| Storage Conditions | Inert atmosphere, Room Temperature |
| PH Value | 5.5-8.5 (20℃, 0.05% in H2O) |
| Water Solubility | Soluble in water 1.759 mg/L @ 25°C |
| UV Absorbance (λmax) |
λ: 225 nm Amax: ≤0.08 λ: 260 nm Amax: ≤0.06 λ: 280 nm Amax: ≤0.04 λ: 340 nm Amax: ≤0.02 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
Appearance & Physical State: This product is a light yellow colloidal liquid.
Key Properties: Relative density is 0.884, HLB value is 15.7, flash point (open cup) is 180℃, and surface tension (0.1% solution) is 34×10⁻³ N/m. At 20℃, water solubility is less than 1%. Soluble in alcohol. Demonstrates excellent stability, surface activity, emulsification, sterilization, disinfection, softness, and antistatic properties.
Octadecyltrimethylammonium chloride features good chemical stability and is widely utilized across multiple industries:
The production environment is controlled by an advanced HVAC system comprising primary filters, secondary filters, and high-efficiency particulate air (HEPA) filters. Filters are replaced at strict intervals: primary and secondary filters are replaced every 6 months or when pressure exceeds twice the initial level. HEPA filters undergo annual leakage testing to maintain standard operational parameters.
The CAS number is 112-03-8, and its molecular formula is C21H46ClN with a molecular weight of 348.06.
It is widely used as a hair conditioner, fabric softener, fiber antistatic agent, silicone oil and asphalt emulsifier, organic bentonite modifier, disinfectant, and biopharmaceutical water treatment flocculant.
At 20℃, its water solubility is less than 1% (1.759 mg/L @ 25°C). However, it is readily soluble in alcohol.
It should be stored under an inert atmosphere at room temperature, away from strong oxidizing agents.
Packaging options include PE/Aluminum bags, ampoule vials, cardboard drums, barrels, and bottles. Shipping options cover both Air (Express, Ice bag, Post/EMS, Cold Chain) and Sea transportation (Regular, Cold Chain).
Primary and secondary filters are replaced every 6 months or when differential pressure doubles, while HEPA filters undergo leakage testing on an annual basis.
