Silicon dioxide CAS#7631-86-9

Silicon dioxide CAS#7631-86-9

Basic Information

Stable and reliable performance: It has stable physical and chemical properties, acid, alkali, high temperature and corrosion resistance, suitable for diverse production scenarios.


Efficient and versatile functions: It has excellent adsorption, anti-caking, dispersing, thickening and thixotropic properties with good powder fluidity.


Safe and compliant: Non-toxic and non-irritating, environmentally friendly, compliant with standards for food, pharmaceutical and daily chemical industries.


Standard storage & operation: Store in sealed, dry, cool and ventilated conditions; keep away from corrosive materials. Wear dust-proof protective equipment, avoid moisture and damage, and use within shelf life.


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product description

Product Description of Silicon dioxide CAS#7631-86-9

Silicon dioxide is an inorganic non-metallic powder material. It is fine odorless and tasteless white powder under normal condition. It owns stable physical and chemical properties, hardly reacts with common acid and alkali, and keeps stable during storage.


Product Application of Silicon dioxide CAS#7631-86-9

Widely used in multiple industries, silicon dioxide can be used as anticaking agent, flow aid, adsorbent, thickener, reinforcing filler and matting agent. It is applied in food processing to prevent powder agglomeration, in pharmaceuticals as a safe pharmaceutical excipient, in rubber and plastic products to improve hardness and wear resistance, in daily cosmetics to adjust material texture, in feed industry to maintain material looseness, and in coatings and inks for thickening and matting to optimize coating molding effects, covering various industrial and civil production fields.

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Product Information

Parameters


Melting point

>1600 °C(lit.)

Boiling point

>100 °C(lit.)

density

2.2-2.6 g/mL at 25 °C

bulk density

200-800kg/m3

vapor pressure

13.3hPa at 1732℃

refractive index

1.46

Fp

2230°C

storage temp.

2-8°C

solubility

Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali hydroxides.

form

suspension

pka

6.65-9.8[at 20 ℃]

Specific Gravity

2.2

color

White to yellow

Odor

at 100.00%. odorless

PH

5-8 (100g/l, H2O, 20℃)(slurry)

Resistivity

1∞10*20 (ρ/μΩ.cm)

Water Solubility

insoluble

Sensitive

Hygroscopic

Hydrolytic Sensitivity

6: forms irreversible hydrate

Crystal Structure

Trigonal

Merck

148,493

Exposure limits

NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3

Stability:

Stable.

Cosmetics Ingredients Functions

BULKING

ABSORBENT

OPACIFYING

ABRASIVE

VISCOSITY CONTROLLING

ANTICAKING

InChI

1S/O2Si/c1-3-2

InChIKey

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

SMILES

[Si](=O)=O

CAS DataBase Reference

7631-86-9(CAS DataBase Reference)

NIST Chemistry Reference

Silicon(iv) oxide(7631-86-9)

IARC

3 (Vol. Sup 7, 68) 1997

EPA Substance Registry System

Silica (7631-86-9)

ECETOC JACC REPORT

Silicon dioxide (7631-86-9)


Safety Information


Hazard Codes

Xn,Xi

Risk Statements

36/37/38-36/37-22-43-52/53-36/38

Safety Statements

26-37/39-36-36/37/39-36/37-61

OEB

B

OEL

TWA: 6 mg/m3

WGK Germany

nwg

RTECS

VV8853000


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FAQ

1. What kind of company is Bohai New Materials?
Bohai New Materials (Tianjin) Co., Ltd. is a foreign trade company specializing in the international trade of chemical products, located in the Binhai New Area of ​​Tianjin. Leveraging the strategic location of Tianjin Port, the company provides one-stop procurement and export services to global clients for a wide range of products, including plastic resins, basic chemical raw materials, fine chemicals, chemical fiber raw materials, and inorganic chemicals.


2. Which markets does the company serve?
Our products are primarily exported to Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), the Middle East (UAE, Saudi Arabia), Africa (Nigeria, Kenya), as well as Europe and the Americas.


3. Does the company have the qualifications to export hazardous chemicals?
Yes. We hold a valid license for the operation of hazardous chemicals and are well-versed in the export declaration, packaging, documentation, and transportation requirements for various types of hazardous goods. We are capable of handling the export of Class 3, Class 5, Class 8, and Class 9 hazardous chemicals.


4. What are the company's main products?
Our core product portfolio includes:
Plastic resins: PP, PE, PVC, ABS, PC, POM, etc.
Basic chemical raw materials: Soda ash, caustic soda, titanium dioxide, methanol, styrene, ethylene glycol, PTA, etc.
Fine chemicals: Pharmaceutical intermediates, pesticide intermediates, chemical additives, solvents, surfactants.
Chemical fiber raw materials: Polyester filament, polyester staple fiber, polyester chips (PET).
Inorganic chemicals: Calcium carbonate, talc powder, sodium sulfate, calcium chloride, magnesium chloride, etc.
Others: Paraffin wax, white oil, petroleum jelly (Vaseline), rubber, water treatment chemicals, etc.
If you have specific product requirements, please feel free to contact us; we will quickly source high-quality products to meet your needs.


5. How can I obtain a product quote? What information is required?
You can contact us via our official website, by phone, or by email. To ensure a quick and accurate quote, please provide the following details: product name and specifications, target purchase quantity, destination port, and desired delivery time. Please also inform us of any special packaging or testing requirements.

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