myالوثائق الفنية
SIPERNAT® 383 DS is a very finely ground silica with a slightly alkaline pH-value.
تفاصيل
CAS
112926-00-8
تطبيقات
منتج
المورد
التركيب الكيميائي
silica
مزايا
- good reactivity
- It is not necessary to add any catalyst
- Due to an optimum pH-value of about 8 it facilitates for instance the hydrophobization process of defoamers
تطبيقات أخرى
for the production of in-situ hydrohobized defoamers
تخزين
we recommend storing the products in sealed containers in a dry, cool place, and removed from volatile organic substances.
our recommended use-by date is 24 months after date of manufacture. Product more than 24 months old should be tested for moisture content before use in order to make certain that it is still suitable for the intended application.
معلومات تقنية
| كمية | قدر | وحدة | التعلیق |
|---|---|---|---|
| خصائص المظهر | |||
| Sieve residue | <300 | ISO 3262-19 | |
| Particle size | 7.5 | µm | laser diffraction;ISO 13320-1 |
| Physical state | powder | ||
| الخصائص الفيزيائية | |||
| SiO2 | >97 | % | ISO 3262-19 |
| Tap density | 0.09 | g/cm3 | ISO 787-11 |
| pH | 8.3 | ISO 787-9; 5%in water | |
| Surface Area | 175 | m²/g | ISO 9277 |
| الخصائص الحرارية | |||
| Loss on ignition | <6 | % | 2hours at 1000°C |
| الخواص الكيميائية | |||
| Sodium/potassium content | <14000 | ppm | internal method |
| Loss on drying | <6 | % | ISO 787-2;2hours at 105°C |
| Sulfate content | <1.2 | internal method | |
| Shelf Life | 24 | month | |
| الخواص الكهربائية | |||
| Electrical conductivity | <0.0014 | s/cm | ISO 787-14 |