Molekula
حمض الستيريك
Stearic acid
مؤهل وفق ISO 9001:2015 و ISO 14001:2015 · تقديم خدمات للمختبرات والصناعة منذ عام 2000 · شهادة التحليل مع كل دفعة
Stearic acid is a saturated fatty acid derived from animal or vegetable fats, widely used in cosmetics, pharmaceuticals, and industrial lubricants for its emulsifying, thickening, and water-repellent properties. It appears as a white, flaky solid with a faint odor, soluble in organic solvents but not water. Catalogue details: CAS 57-11-4, molecular formula CH₃(CH₂)₁₆COOH, molecular weight 284.48 g/mol, and requires storage at 2–8°C. Molekula supplies stearic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
نظرة عامة
Stearic acid is a saturated fatty acid derived from animal or vegetable fats, widely used in cosmetics, pharmaceuticals, and industrial lubricants for its emulsifying, thickening, and water-repellent properties. It appears as a white, flaky solid with a faint odor, soluble in organic solvents but not water. Catalogue details: CAS 57-11-4, molecular formula CH₃(CH₂)₁₆COOH, molecular weight 284.48 g/mol, and requires storage at 2–8°C. Molekula supplies stearic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
الأسعار ومقاسات التعبئة
المواصفات
| Property | Value |
|---|---|
| Appearance | white to yellow solid |
| Melting Point | 53 - 59°C |
| Heavy metals | ≤ 10ppm |
| Residue on Ignition | ≤ 0.1% |
| Iodine value (g I2/100g) | ≤ 4.0gI2/100g |
| Stearic acid | 40 - 60% |
| Acid Value (mg KOH/g) | 194 - 212 |
| Stearic and Palmitic acid value | ≥ 90% |
التخزين والتعامل
| Property | Value |
|---|---|
| درجة حرارة التخزين | 2 to 8 °C |
| نقطة الاشتعال | 200 C |
| الحموضة | Acid |
التعرف
| Property | Value |
|---|---|
| SKU | 26845541 |
| رقم CAS | 57-11-4 |
| الصيغة الجزيئية | CH3(CH2)16COOH |
| الوزن الجزيئي | 284.48 |
| SMILES | O=C(O)CCCCCCCCCCCCCCCCC |
| رمز REACH | Y113 |
| مُدرَج وفق TSCA | نعم |
| رقم HTS | 29157001 |
| رقم التعريف الجمركي | 2915705090 |
السلامة ونظام التصنيف والتحذير العالمي
إقرارات احترازية
- P264 تغسل ... جيداً بعد المناولة
- P280 توضع قفازات للحماية / ملابس للحماية / وقاء للعينين / للوجه
الوثائق
أوراق بيانات السلامة (SDS)
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شهادة التحليل (CoA) حسب الدفعة
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مرادفات
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الأسئلة الشائعة
What is stearic acid commonly used for?
Stearic acid is widely used in cosmetics (soaps, lotions), plastics (lubricant/stabilizer), candles, and food (emulsifier/release agent) due to its emulsifying and thickening properties.
What is the chemical formula and molecular weight of stearic acid?
The formula is **CH₃(CH₂)₁₆COOH** and the molecular weight is **284.48 g/mol**.
How should stearic acid be stored?
Store stearic acid at **2–8°C** in a cool, dry place, away from direct sunlight and moisture to prevent degradation.
What grades of stearic acid does Molekula supply?
Molekula supplies **pharmaceutical-grade, cosmetic-grade, and technical-grade** stearic acid, depending on your application requirements.
Can Molekula supply stearic acid in bulk quantities?
Yes, we offer stearic acid in bulk (e.g., 25 kg drums, 50 kg bags, or custom packaging) for industrial and large-scale applications.
What documentation comes with a stearic acid order?
Each order includes a **Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation** for traceability.
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