DIATOMACEOUS EARTH
- CAS No.
- 68855-54-9
- Chemical Name:
- DIATOMACEOUS EARTH
- Synonyms
- KIESELGUHR;SILICONE DIOXIDE;CELITE 545;HYFLO;535;KIESELGEL;KIESELGUR;FILTER AGENT;CELITE 521;CELITE 503
- CBNumber:
- CB4199395
- Molecular Formula:
- O2Si
- Molecular Weight:
- 60.084
- MDL Number:
- MFCD00146688
- MOL File:
- Mol file
| Melting point | >450℃ |
|---|---|
| Density | 0.47 g/cm3 (loose weight)(lit.) |
| storage temp. | Store at RT. |
| solubility | <0.001g/l |
| form | rod (1/8") |
| PH | >8.5 (25℃, 10% in aq. suspension) |
| Water Solubility | Insoluble in water. |
| EPA Substance Registry System | Kieselguhr, soda ash flux-calcined (68855-54-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H372 | |||||||||
| Precautionary statements | P260-P264-P270-P314-P501 | |||||||||
| Hazard Codes | T,Xn | |||||||||
| Risk Statements | 48/20-49-36/37-36/38-45-36/37/38 | |||||||||
| Safety Statements | 22-36-26-53-45-36/37/39-39 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | VV7311000 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 3802 90 00 | |||||||||
| NFPA 704 |
|
DIATOMACEOUS EARTH price More Price(50)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 22140 | Celite? 545 filteraid,treatedwithsodiumcarbonate,fluxcalcined | 68855-54-9 | 1kg | $77.4 | 2024-03-01 | Buy |
| Sigma-Aldrich | 22141 | Celite® 545 AW filteraid,acidwashed,treatedwithsodiumcarbonate,fluxcalcined | 68855-54-9 | 100g | $600 | 2024-03-01 | Buy |
| Sigma-Aldrich | 22140 | Celite? 545 filteraid,treatedwithsodiumcarbonate,fluxcalcined | 68855-54-9 | 5kg | $262 | 2024-03-01 | Buy |
| Sigma-Aldrich | 22138 | Celite? 535 filteraid,fluxcalcined | 68855-54-9 | 1kg | $108 | 2024-03-01 | Buy |
| Sigma-Aldrich | 20199-U | Celite® 545 AW reagentgrade | 68855-54-9 | 454G | $420 | 2024-03-01 | Buy |
DIATOMACEOUS EARTH Chemical Properties,Uses,Production
Chemical Properties
Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Chemical Properties
white to off-white powder
Uses
Production of filters, polishes, absorbents, insulators.
Uses
Diatomaceous earth may be used as an adsorbent for column chromatography.
Uses
Celite (R) 545 AW was used as stationary phase in purification of fagopyritols using preparative chromatography. Celite (R) 545 AW was used as packing material for fractionating procedure and the fractions were analysed using GC-ECD, GC/ECNI-MS 2 and IC-MS/MS.
Definition
ChEBI: Silicon dioxide is a silicon oxide made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens.
General Description
Chromosorb? W is a diatomite which provides solid support for the packed GC columns. It is suitable for use with polar compounds, due to its low surface area and high inertness.
Health Hazard
Amorphous silica, natural diatomaceous earth, is usually considered to be of low toxicity; however, pure amorphous silica is rarely found.
Flammability and Explosibility
Non flammable
Potential Exposure
Amorphous fumed silica is used as a mineral, natural or synthetic fiber. A potential danger to those involved in the production and handling of fumed silica for paint pigments or catalysts. Diatomaceous earth is used in clarifying liquids, in manufacture of fire brick and heat insulators; used as a filtering agent; as a filler in construction materials; pesticides, paints, and varnishes. A potential danger to those involved in mining of diatomaceous earth or fabrication of products there from.
Carcinogenicity
Amorphous silica has been tested for carcinogenicity in a variety of animal studies by a number of routes. Most of the tests were negative or were inadequate primarily because of poorly defined physiochemical characteristics of the silica. The IARC concluded that evidence is inadequate to describe amorphous silica as carcinogenic in either experimental animals or humans. Crystalline silica, however, has been designated by IARC as a probable human carcinogen (category 2A), based on “sufficient evidence” in experimental animals and “limited evidence” in humans.Therefore, although evidence for the carcinogenicity of crystalline silica in humans is unconvincing, certainly from exposures insufficient to cause silicosis, appropriate hazard warnings are obligatory in the United States. These apply to all materials containing 0.1% or more of crystalline silica (quartz, cristobalite, and/or tridymite).
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.
DIATOMACEOUS EARTH Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21691 | 55 |
| career henan chemical co | +86-0371-86658258 15093356674; | factory@coreychem.com | China | 29826 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 15093356674; | laboratory@coreychem.com | China | 30255 | 58 |
| AFINE CHEMICALS LIMITED | 0571-85134551 | info@afinechem.com | CHINA | 15377 | 58 |
| Baoji Guokang Healthchem co.,ltd | +8615604608665 15604608665 | dominicguo@gk-bio.com | CHINA | 9427 | 58 |
| BOC Sciences | +16314854226 | inquiry@bocsci.com | United States | 19743 | 58 |
| Henan Alfa Chemical Co., Ltd | +8618339805032 | alfa4@alfachem.cn | China | 12755 | 58 |
| LEAP CHEM CO., LTD. | +86-852-30606658 | market18@leapchem.com | China | 24738 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +undefined18621343501 | product@acmec-e.com | China | 33349 | 58 |
| Aladdin Scientific | +1-833-552-7181 | sales@aladdinsci.com | United States | 57511 | 58 |
View Lastest Price from DIATOMACEOUS EARTH manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-09 | DIATOMACEOUS EARTH
68855-54-9
|
US $1.00 / KG | 1KG | 99.0% | 100kg | Career Henan Chemical Co |
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- DIATOMACEOUS EARTH
68855-54-9
- US $1.00 / KG
- 99.0%
- Career Henan Chemical Co