زراعة بلورات الشب
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://chemfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>
Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://chemfyi.com/entity//
Add a dynamic SVG badge to your README or docs.
[](https://chemfyi.com/entity//)
Use the native HTML custom element.
إنشاء بلورات شب شفافة كبيرة
الهدف
زراعة بلورات شب البوتاسيوم الكبيرة والشفافة الثمانية الوجوه من محلول مشبع فائق.
الخلفية
Potassium alum (KAl(SO₄)₂·12H₂O) crystallizes in a beautiful octahedral habit. It is non-toxic, inexpensive, and easy to grow into large crystals. The octahedral shape reflects the cubic crystal system of alum.
تحذيرات السلامة
- Use care with hot water
- Alum is generally safe but avoid ingestion of large amounts
معدات الوقاية الشخصية المطلوبة
المواد
-
Potassium alum (100 g)Food-grade available
-
Distilled water (300 mL)Hot
-
Thread or monofilament (30 cm)
المعدات
الإجراء
Heat 300 mL of distilled water to near boiling. Slowly dissolve as much alum as possible (about 80-100 g) while stirring.
Filter the hot solution to remove any undissolved particles.
Pour a small amount into a dish and let it cool to form seed crystals overnight.
Select the best octahedral seed crystal. Tie it to thread and suspend in the main solution.
Cover loosely and store in a stable, cool location. Check daily.
After 1-2 weeks, remove the crystal, dry with a paper towel, and photograph the octahedral faces.
النتائج المتوقعة
Large, transparent, octahedral crystals up to 2-4 cm across after 1-2 weeks. The faces should be smooth and the crystal should be nearly colorless and transparent.
التنظيف
Alum solution can be saved for future crystal growing or disposed down the drain. Rinse beaker.
التفاصيل
- الفئة
- Crystallization
- الصعوبة
- Beginner (Middle School)
- المدة
- 30 دقيقة
- التكلفة التقديرية
- $6,00
- الخطوات
- 6
- المواد
- 3