SILICA | 14464-46-1

SILICA Properties

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 temp.

2-8°C

solubility

insoluble in H2O, acid solutions; soluble in HF

form

tablets (~0.5 g each)

color

colorless hexagonal, hexane crystals, crystalline

crystal system

square

Space group

P42212

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.498	0.498	0.694	90	90	90	0.1721

InChIKey

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Proposition 65 List

Silica, crystalline (airborne particles of respirable size)

EPA Substance Registry System

Cristobalite (14464-46-1)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS08
Signal word	Danger
Hazard statements	H372
Precautionary statements	P260-P264-P270-P314-P501
Hazard Codes	Xn,T
Risk Statements	48/20
Safety Statements	22
OEB	D
OEL	TWA: 0.05 mg/m3
WGK Germany	3
RTECS	VV7340000
F	3
HS Code	28112290
Toxicity	TCLo inhalation in human: 16mppcf/8H/17

SILICA price More Price(3)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	NIST1879A	Respirable cristobalite NIST? SRM? 1879a, quantitative X-ray powder diffraction standard	14464-46-1	5G	$1780	2024-03-01	Buy
SynQuest Laboratories	M014-0-01	Silicon(IV) oxide 99.999%	14464-46-1	25g	$112	2021-12-16	Buy
SynQuest Laboratories	M014-0-01	Silicon(IV) oxide 99.999%	14464-46-1	100g	$192	2021-12-16	Buy

Product number	Packaging	Price	Buy
NIST1879A	5G	$1780	Buy
M014-0-01	25g	$112	Buy
M014-0-01	100g	$192	Buy

SILICA Chemical Properties,Uses,Production

Chemical Properties

Silicon dioxide/crystalline silica is a component of many mineral dusts and materials which melts to a glass at very high temperature.

Uses

Because of its unique physical and chemical properties, crystalline silica has many uses. Commercially produced silica products include quartzite, tripoli, ganister, chert, and novaculite. Crystalline silica also occurs in nature as agate, amethyst, chalcedony, cristobalite, flint, quartz, tridymite, and, in its most common form, sand (IARC 1997). Naturally occurring silica materials are classified by end use or industry. Sand and gravel are produced almost exclusively for road building and concrete construction, depending on particle size and shape, surface texture, and porosity (IARC 1987).

Definition

A hygroscopic substance such as activated alumina, calcium chloride, silica gel, or zinc chloride. Such substances adsorb water vapor from the air and are used to maintain a dry atmosphere in containers for food packaging, chemical reagents, etc.

Definition

Cristobalite: a mineral form of silicon(IV) oxide, SiO₂.

General Description

Rounded silica sand is the naturally occurring sand usually mined from glacial deposits, sometimes called Ottawa sands. Silica sand is essentially made of quartz (SiO2 ) grains.
Pressure range: 28 < σc < 35 MPa (4 < σc < 5 ksi)
Advantages: Low cost, low density, wide availability, and excellent chemical resistance in acidic media except those containing free HF
Drawbacks: Low permeability, low crushing strength, and poor resistance to flow back

Safety Profile

Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Poison by intratracheal route. An inhalation hazard. Human systemic effects by inhalation: cough, dyspnea, fibrosis. About twice as toxic as silica in causing sihcosis. See also other sdica entries

Potential Exposure

Cristobalite is used in the manufacture of water glass, refractories, abrasives, ceramics and enamels. Quartz is used as a mineral, natural or synthetic fiber. Tridymite is used as a filtering and insulating media and as a refractory material for furnace linings. Workers are potentially exposed to crystalline silica in such industries as granite quarrying and cutting, foundry operations; metal, coal, dentistry, painting, and nonmetallic mining; and manufacture of clay and glass products.

Carcinogenicity

Respirable crystalline silica, primarily quartz dusts occurring in industrial and occupational settings, is known to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in humans. Respirable crystalline silica was first listed in the Sixth Annual Report on Carcinogens in 1991 as reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals; the listing was revised to known to be a human carcinogen in the Ninth Report on Carcinogens in 2000.

Incompatibilities

Violent reactions with powerful oxidizers: fluorine, chlorine trifluoride; manganese trioxide; oxygen difluoride, hydrogen peroxide, etc.; acetylene; ammonia.

Waste Disposal

Sanitary landfill

SILICA Preparation Products And Raw materials

Raw materials

Preparation Products

5-AMINO-3-(4-METHOXYPHENYL)ISOXAZOLE 2-Bromo-4'-methoxyacetophenone

SILICA Suppliers

Global( 223)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5893	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21634	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29884	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
Shandong chuangyingchemical Co., Ltd.	18853181302	sale@chuangyingchem.com	CHINA	5906	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34553	58
ANHUI WITOP BIOTECH CO., LTD	+8615255079626	eric@witopchemical.com	China	23541	58
Shaanxi Dideu Medichem Co. Ltd	+86-029-89586680 +86-18192503167	1026@dideu.com	China	7724	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	58
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
Hubei Jusheng Technology Co.,Ltd.	58
Hubei xin bonus chemical co. LTD	58
Shandong chuangyingchemical Co., Ltd.	58
Chongqing Chemdad Co., Ltd	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
ANHUI WITOP BIOTECH CO., LTD	58
Shaanxi Dideu Medichem Co. Ltd	58

View Lastest Price from SILICA manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2024-10-11	Silica 14464-46-1	US $20.60 / KG	1KG	96%	5000kg	Hebei Chuanghai Biotechnology Co,.LTD
	2019-07-06	SILICA 14464-46-1	US $1.00 / KG	1KG	98%	1kg,5kg,100kg	Career Henan Chemical Co

Silica
14464-46-1
US $20.60 / KG
96%
Hebei Chuanghai Biotechnology Co,.LTD

SILICA
14464-46-1
US $1.00 / KG
98%
Career Henan Chemical Co

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