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Bentonit

Bentonite Struktur
1302-78-9
CAS-Nr.
1302-78-9
Bezeichnung:
Bentonit
Englisch Name:
Bentonite
Synonyma:
hi-jel;magbond;tixoton;volclay;otaylite;CI 77004;BENTONITE;pengruntu;wilkinite;wilkonite
CBNumber:
CB3307188
Summenformel:
Al2O3.4(SiO2).H2O
Molgewicht:
360.31
MOL-Datei:
Mol file

Bentonit Eigenschaften

Dichte
2~3g/cm3
Löslichkeit
Practically insoluble in water and in aqueous solutions. It swells with a little water forming a malleable mass.
Aggregatzustand
powder
Farbe
Light yellow or green, cream,pink, gray to black solid
Wasserlöslichkeit
Insoluble in water and forms a colloidal solution.
Merck 
14,1055
Stabilität:
Stable.
CAS Datenbank
1302-78-9
EPA chemische Informationen
Bentonite (1302-78-9)

Sicherheit

R-Sätze: 20/22-8
S-Sätze: 22-24/25
WGK Germany  3
RTECS-Nr. CT9450000
TSCA  Yes
Giftige Stoffe Daten 1302-78-9(Hazardous Substances Data)
Toxizität LD50 intravenous in rat: 35mg/kg

Bentonit Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

GERUCHLOSE KöRNCHEN ODER PULVER IN UNTERSCHIEDLICHEN FARBEN.

CHEMISCHE GEFAHREN

Schwache Base als Suspension in Wasser.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt (ACGIH 2005).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation des Staubes.

INHALATIONSGEFAHREN

Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch schnell erreicht werden.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Möglich sind Auswirkungen auf die Lunge mit nachfolgender Silikose auf Grund der Anwesenheit von kristallinem Siliciumdioxid (s. ICSC 0808).

LECKAGE

Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Persönliche Schutzausrüstung: Atemschutzgerät, P1-Filter für inerte Partikel.

R-Sätze Betriebsanweisung:

R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
R8:Feuergefahr bei Berührung mit brennbaren Stoffen.

S-Sätze Betriebsanweisung:

S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

Bentonite is a light yellow, creamy, pale brown or gray to black powder or granules.

Verwenden

bentonite (bentonite clay) is used to regulate the viscosity and suspension properties of a cosmetic formulation. It also acts as an overall formula stabilizer. Bentonite’s water-absorption capabilities allow it to form a gelatinous mass. Considered a noncomedogenic raw material, bentonite is a colloidal aluminum silicate clay.

Vorbereitung Methode

Bentonite is a native, colloidal, hydrated aluminum silicate, found in regions of Canada and the USA. The mined ore is processed to remove grit and nonswelling materials so that it is suitable for pharmaceutical applications.

Definition

A type of clay that is used as an adsorbent in making paper. The gelatinous suspension it forms with water is used to bind together the sand for making iron castings. Chemically bentonite is an aluminosilicate of variable composition.

Allgemeine Beschreibung

Bentonite is comprised primarily of the smectite group (montmorillonite) of clay minerals. It is widely used in various industrial applications such as clarification of edible and mineral oils, paints, cosmetics, and pharmaceuticals. It is also used as an adsorbent for the elimination of pollutants from wastewater.
The swelling property of bentonite is used to produce viscous water suspensions for bonding, plasticizing, and suspending applications. The presence of a large surface area of bentonite is due to the colloidal dispersion of the particles is the main reason for its application as an insecticide carrier, an emulsifier, and an emulsion stabilizer.

Landwirtschaftliche Anwendung

Bentonite, also known as montmorillonite, volcanic clay, soap clay and amargosite, is a soft, plastic, lightcolored, porous rock consisting largely of colloidal silica. Composed essentially of clay minerals, it swells extensively when wet. Bentonite belongs chiefly to the montmorillonite group and has two varieties: (a) sodium bentonite, with a high swelling capacity in water, and (b) calcium bentonite, with negligible swelling capacity.
Bentonite is used variously as a suspending aid, a gelatinous slurry to extinguish fire, a paint thickener, and as a sealant for earthen pots. Bentonite is also widely used in metallurgy, soap manufacture, and in petroleum refining because of its high decolorizing power and strong adsorbing capacity.

Pharmazeutische Anwendungen

Bentonite is a naturally occurring hydrated aluminum silicate used primarily in the formulation of suspensions, gels, and sols, for topical pharmaceutical applications. It is also used to suspend powders in aqueous preparations and to prepare cream bases containing oil-in-water emulsifying agents.
Bentonite may also be used in oral pharmaceutical preparations, cosmetics, and food products. In oral preparations, bentonite, and other similar silicate clays, can be used to adsorb cationic drugs and so retard their release. Adsorbents are also used to mask the taste of certain drugs.
Bentonite has been investigated as a diagnostic agent for magnetic resonance imaging.
Therapeutically, bentonite has been investigated as an adsorbent for lithium poisoning.

Sicherheitsprofil

Poison by intravenous route causing blood clotting. Questionable carcinogen with experimental tumorigenic data.

Sicherheit(Safety)

Bentonite is mainly used in topical pharmaceutical formulations but has also been used in oral pharmaceutical preparations, food products, and cosmetics.
Following oral administration, bentonite is not absorbed from the gastrointestinal tract. Bentonite is generally regarded as a nontoxic and nonirritant material.
LD50 (rat, IV): 0.035 g/kg

mögliche Exposition

This material is used as Fuller’s earth; as a mineral, natural, or synthetic fiber; as an emulsifier for oils; as a base for plasters; in cosmetics, in polishes and abrasives; as a food additive and others. Bentonites are aluminate silicate and can contain crystalline silica. The content varies widely from less than 1% to about 24% .

Lager

Bentonite is hygroscopic, and sorption of atmospheric water should be avoided.
Aqueous bentonite suspensions may be sterilized by autoclaving. The solid material may be sterilized by maintaining it at 1708℃ for 1 hour after drying at 1008℃.
Bentonite should be stored in an airtight container in a cool, dry place.

Versand/Shipping

Bentonite is not cited in the DOT Performance- Oriented Packaging Standards.

Inkompatibilitäten

Aqueous bentonite suspensions retain their viscosity above pH 6, but are precipitated by acids. Acid-washed bentonite does not have suspending properties. The addition of alkaline materials, such as magnesium oxide, increases gel formation.
Addition of significant amounts of alcohol to aqueous preparations will precipitate bentonite, primarily by dehydration of the lattice structure.
Bentonite particles are negatively charged and flocculation occurs when electrolytes or positively charged suspensions are added. Bentonite is thus said to be incompatible with strong electrolytes, although this effect is sometimes used beneficially to clarify turbid liquids.
The antimicrobial efficacy of cationic preservatives may be reduced in aqueous bentonite suspensions, but nonionic and anionic preservatives are unaffected.
Bentonite is incompatible with acriflavine hydrochloride.

Waste disposal

Land fill disposal.

Regulatory Status

Accepted in Europe as a food additive in certain applications. Included in the FDA Inactive Ingredients Database (oral capsules, tablets and suspensions, topical suspensions, controlled release transdermal films and vaginal suppositories). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

Bentonit Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Bentonit Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 229)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
info@tianfuchem.com China 22022 55
Hebei Guanlang Biotechnology Co., Ltd.
+86-19930503282 +86-19930503282
alice@crovellbio.com China 5939 58
Hubei xin bonus chemical co. LTD
86-13657291602
linda@hubeijusheng.com CHINA 23035 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
Shanghai Longyu Biotechnology Co., Ltd.
+8615821988213
info@longyupharma.com China 2519 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427
sales@conier.com China 47500 58
career henan chemical co
+86-0371-86658258
factory@coreychem.com China 29862 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
sales@tnjchem.com CHINA 34618 58
Hebei Zhanyao Biotechnology Co. Ltd
+8615369953316
admin@zhanyaobio.com China 2152 58
Shaanxi Dideu Medichem Co. Ltd
29-89586680 +8618192503167
1005@dideu.com China 9938 58

1302-78-9(Bentonit)Verwandte Suche:


  • MONTMORILLONITE
  • BENTONITE MAGMA
  • BENTONITE
  • BENTONITE (SODIUM FORM)
  • FULLERS EARTH
  • KWK KRYSTAL KLEAR
  • albagelpremiumusp4444
  • pengruntu
  • Dioxosilane oxo(oxoalumanyloxy)alumane hydrate
  • bentonite,sodiummontmorillonite
  • bentonite2073
  • Bentonite812,organic
  • bentonitepowder
  • colloidalclay
  • hi-jel
  • imvitei.g.b.a
  • magbond
  • otaylite
  • panthercreekbentonite
  • southernbentonite
  • tixoton
  • volcalybentonitebc
  • volclay
  • wilkinite
  • wilkonite
  • Denver clay
  • Paper clay
  • Nanomer? PGV
  • BENTONITE-SFRESEARCH GRADE
  • Bentonite 27
  • Fisherbrand? Humidity Sponge? Dessicant
  • VOLCLAY? SPV
  • Optigel WM
  • CI 77004
  • NANOCLAY, NANOMER PGV&
  • BENTONITE SELECTED FOR COAGULATION FACTORS ADSORPTION
  • SUPERFINE ACTIVE BENTONITE 30-80 NM
  • BentonitePowder(AluminiumSilicateHydrate)
  • BENTONITE,POWDER,NF
  • BENTONITE,POWDER,TECHNICAL
  • ALKALINEACTIVATEDBENTONITE
  • CALCIUMBENTONITE
  • BENTONITE,CALCIUM-
  • MONTMORILLONITECLAY
  • ACIDICACTIVATEDBENTONITE
  • ORGANICACTIVATEDBENTONITE
  • ENVIROCAT EPAD
  • Bentonite dust
  • Bentonite Clay, Fine Powder
  • Montmorillonite, Optigel WM
  • Montmorillinite clay, bentonite, Nanomer(R) clay, Nanomer(R) PGV
  • Nanoclay, hydrophilic bentonite
  • Montmorillonite, Tixogel VP
  • Mud bentonite
  • Bentonite ISO 9001:2015 REACH
  • Bentonite Nanoclay
  • iron(II) modified bentonite
  • Sell Supply Bentonite Price CAS 1302-78-9 Buy Bentonite Supplier Seller Manufacturer Factory
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