Гидрофильный диоксид кремния


Поделиться:


Цена:2,00 $ - 5,00 $*

Количество:



Описание и отзывы


Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-19-2025 2.52 $* 2.75 $*
Aug-19-2025 2.21 $* 2.3 $*
Jul-19-2025 2.9 $* 2.1 $*
Jun-19-2025 2.35 $* 2.76 $*
May-19-2025 2.7 $* 2.66 $*
Apr-19-2025 2.98 $* 2.82 $*
Mar-19-2025 2.15 $* 2.89 $*
Feb-19-2025 2.77 $* 2.50 $*
Jan-19-2025 2.28 $* 2.58 $*

Характеристики



Product Description




Specification
IOTA HL4200
Specific sunface area(BET), ㎡/g
200±20
pH value in 4% dispersion
3.9~4.5
Loss on drying(2 hours at 105℃), %
≤2.0
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃), %
≤2.0
Sieve Residue(45μm), mg/kg
≤250
Silica Content(Based on ignited material), %
≥99.8
Tamped Density(Based on material dried at 105℃ for 2 hours), g/dm²
40~60



* Product description
HB4630 is hydrophobic fumed silica which is produced by HL4380 after chemical post-treatment with HMDS (Hexamethyldisilazane).

* Applications
* Elastomers, HTV silicone rubber and LSR
* Coatings & printings ink
* Defoamer
* Carbon Powder for Printer

* Properties
* * High reinforcement and transparency in HTV and LSR
* High hydrophobicity and stable thixotropy
* Anti-settling and anti-sagging agent in coatings and printing ink
* High anti-foam property
* Free flow aid and anti-caking aid for powders
*

* Package

White kraft paper bag, 10KG/Bag


Silica series




Product characteristics


White carbon black is the general name of white powdered X-ray amorphous silicic acid and silicate products, which mainly refers to precipitated silica, gaseous silica and nano silica dispersion. Silica is a porous material, and its composition can be expressed by SiO2 · nH2O, in which nH2O exists in the form of surface hydroxyl. Soluble in caustic soda and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, nonflammable, tasteless, odorless, with good electrical insulation.


CAS No.: 10279-57-9

EINECS No.: 238-878-4

Molecular formula: SiO2. X (H2O)

Melting point: 1610 ° C (lit.)

Boiling point: > 100 ° C (lit.)

Density: 2.6 g / ml at 25 ° C (lit.)

Refractive index: N20 / D 1.544 (lit.)

Storage conditions: 2-8 ° C

form tablets (~0.5 g each)

1. Physical properties

Appearance: white powder or granular or irregular block.

True density: about 2.0g/ml, false density: about 0.2g/ml (ordinary product).

High temperature resistance and non combustion; Good electrical insulation.

2. Chemical properties:

It can react with caustic soda sio2nh2o + 2naoh = Na2SiO3 + (n + 1) H2O

It can react with hydrofluoric acid sio2nh2o + 4HF = SiF4 + (n + 2) H2O

3. Main chemical indexes

SiO2 content (dry product) ≥ 90%

Sieve residue (4.5) ц m)≤0.5%

Heating reduction: 4.0-8.0%

Ignition loss: (dry product) ≤ 7.0%

PH value: 5.0-8.0

Total copper content: ≤ 30mg / kg

Total manganese content: ≤ 50mg / kg

Total iron content: ≤ 1000mg / kg

DBP absorption value: 2.00-3.50cm/g

Specific surface area: there are different ranges for different purposes, generally 145-165m / g (HT2) 165-185m / g (ht1)

200-300m/g(HT3)

3. Main physical properties (with rubber products)

Tensile strength ≥ 17.0mpa 500% constant tensile strength ≥ 6.3MPa

Breaking elongation ≥ 675%



Product Show




Packing


   Packaging, storage and transportation


White kraft paper bag, 10KG/Bag


Company Introduction




Iota Silicone Oil (Anhui) Co., Ltd was established in 2010, located in Bengbu, Anhui Province, which is the manufacturing
operation of Iota Corporation Limited in China. As a member of Iota Corporation Our company covers an area of 9,000 square meters
and a construction area of 12,000 square meters.Iota Silicone Oil maintains close long-term cooperative relationship with many
universities and research institutes in Nanjing and implements a strict and complete quality control system, which ensures that
each product can meet quality requirements of customers. Besides, all of our products have been strictly inspected before
shipment. Technical support and scientific management of the powerful can provide all kinds of high quality organic silicon
materials for our customers.Our main products: Ultra-high vacuum diffusion pump oil, Phenyl methyl silicone oil, Methyl silicone
oil, Amino silicone oil, Silicone additives, Agricultural silicone surfactant, Silicone resin, Silicone paper. Iota enjoy high
reputation in our market for Phenyl methyl silicone oil, ultra-high vacuum diffusion pump oil, agricultural silicone surfactant
and food grade silicone paper.Our products are mainly exported to Southeast Asia, South America, Europe, America, the Middle East
and Medium-High level China market.Thanks for your interest in Iota Silicone Oil.We look forward to doing business with you!



Certifications




Данные ресурс не является интернет-магазином, а лишь содержит ссылки на международную торговую площадку Alibaba.com