Celite Chemical Properties

Melting point:

1400~1650℃

Boiling point:

2200 °C

Density 

0.47 g/cm³ (loose weight)(lit.)

storage temp. 

no restrictions.

form 

solid

Odor

odorless

PH

~7 (25℃, 10% in aq. suspension)

Water Solubility 

insoluble

Merck 

14,4973

Dielectric constant

1.4（Ambient）

Stability:

Stable. Incompatible with strong acids

EPA Substance Registry System

Kieselguhr (61790-53-2)

Safety Information

Hazard Codes 

T,Xn,Xi

Risk Statements 

48/20-36/37-49

Safety Statements 

22-39-26-36-53-45-S26

RIDADR 

No citation

OEB

B

OEL

TWA: 6.0 mg/m3

WGK Germany 

2

RTECS 

VV7311000

TSCA 

Yes

HS Code 

25120000

MSDS

• Language:English Provider:Diatomaceous earth
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Celite Usage And Synthesis

Description

Celite mainly refers to diatomaceous earth. It is a naturally occurring, soft, siliceous sedimentary rock. It is consists of fossilized remains of a type of hard-shelled algae, diatoms. It contains mostly silica (80% to 90%) as well as small amount of alumina and iron oxide. Celite has various applications. It can be supplied to the explosive to make them more stable for transport. It can also be used as a filtration acid as well as abrasive to be used in toothpaste, metal polishes as well as some facial scrubs. It can also be used as an insecticide for pest control. Its thermal properties make it be used as the barrier material in some fire resistant safes. It can also be used as a liquid absorbent, matting agent of coatings, catalyst support, activator in blood clotting studies, stabilizing component of dynamites, and a thermal insulator. It is also useful in construction.

References

https://en.wikipedia.org/wiki/Diatomaceous_earth

Description

Diatomaceous earth is a transparent to gray,odorless amorphous powder. Molecular weight = 60.78;Specific gravity (H2O:1) = 2.20; Boiling point = -230℃;Freezing/Melting point = 1710℃. Hazard Identification(based on NFPA-704 M Rating System): Health 1,Flammability 0, Reactivity 0. Insoluble in water.

Chemical Properties

tan powder

Chemical Properties

Diatomaceous earth is a transparent to gray, odorless amorphous powder.

Chemical Properties

Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder

Uses

Chemically, diatomaceous earth is mostly amorphous silicon dioxide, accompanied by mineral salts, with large surface area. Its use as an insecticide dust is based on its capability to absorb moisture, oils, and waxes (48).

Uses

Filter Aid, Celite AW Standard Supercel? is used for general filtrations. It is also used as a functional filler in paints, plastics, paper, rubber, adhesives, catalysts, agricultural chemicals, pharmaceuticals and other chemicals, and a mild abrasive in polishes and cleaners. It is also used in clarifying liquids and oils, as an efficient thermal insulator; in manufacture of heat insulators, fire brick, and fire- and acid-proof packing materials; as an absorbent; in absorbent dynamite; as a solid carrier in chromatography; pozzolanic admixture in concrete mixes.

Uses

Highly insoluble, inert material for use as a filtration aid.

Definition

Diatomite: A whitish powdered mineral consisting mainly of silica (silicon( IV) oxide) derived from the shells of diatoms. It is used to make fireproof cements and as an absorbent in the manufacture of DYNAMITE.

General Description

Celpure^? P65 (Diatomaceous earth, DE) is natural amorphous silica formed from the fossilized skeletons of diatoms. It is extracted, crushed, dried and calcined with or without flux material. DE is widely used as filler in construction materials, paints and as an anti-caking agent for agricultural chemicals. It has high water and oil absorption ability. The potential toxicity of different samples of DE has been assessed. DE is also employed as an adsorbent for column chromatography.

Agricultural Uses

Diatomaceous earth: Diatomaceous earth kills and repels insects, including bed bugs, fleas, cockroaches, and carpet beetles, by dehydrating them, rather than chemically poisoning them, and has been used since early times. It is also used as a filtering agent and as a filler in construction materials, pesticides, paints, and varnishes. The calcined version (which has been heat treated) is the most dangerous and contains crystallized silica, and should be handled as silica.

Trade name

CELITE®; CROP GUARD®; DIACTIV®; DIAFIL®; DI-ATOMATE®; DIE-SECTICIDE®; KENITE®; PRIMISIL®

Potential Exposure

Diatomaceous earth is used as a filtering agent and as a filler in construction materials, pesticides, paints, and varnishes. The calcined version (which has been heat treated) is the most dangerous and contains crystallized silica, and should be handled as silica. See also other entries on silica

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical has beeninhaled, remove from exposure, begin rescue breathing(using universal precautions, including resuscitation mask)if breathing has stopped and CPR if heart action hasstopped. Transfer promptly to a medical facility.

storage

Color Code—Green: General storage may be used.Store in tightly closed containers in a cool, well-ventilatedarea.

Shipping

This material is not singled out by DOT in its Performance-Oriented Packaging Standards.

Incompatibilities

Silica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.

Waste Disposal

Sanitary landfill.

Celite (61790-53-2)Related Product Information

• Benzoyl peroxide
• Silicon dioxide
• Silica, fumed
• Quartz
• Silica gel
• Calcium fluoride
• DOLOMITE
• SILICA
• KIESELGUHR G
• SILICA DIMETHYL SILYLATE
• CALCINATED DIATOMACEOUS EARTH,DIATOMACEOUS EARTH, CHARGED,PRESEP(R) DIATOMACEOUS EARTH
• Copper(II) nitrate on Celite®
• Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, hydrolysis products with silica
• Silver carbonate on celite
• SILICA
• DIATOMACEOUS EARTH
• FITC I hydrochloride, 10% Celite Fluorescein isothiocyanate I hydrochloride, 10% Celite
• SILICA SILYLATE
• Diatomaceous
• Diatomite
• Kieselguhr
• Kieselgur