Pharmaceutical Grade Sodium Bentonite

 

sodium bentonite clayPharmaceutical grade sodium bentonite clay is used in pharmaceutical industries as well as in personal care. It is a high-end product in terms of the price, and is sold in 1MT quantities only, on order, with a bit of wait time.

 

Product Description

 

A pharmaceutical grade bentonite conforming to the European Pharmacopoeia (Ph. Eur. 8.2), monograph Bentonit (8.0/0467) and the British Pharmacopeia 2014.

 

Chemical Analysis (Typical Data)

 

SiO2        70.0%
Al2O3        16.0%
Na2O        2.8%
MgO        2.7%
Fe2O3        1.3%
CaO        1.1%
K2O        1.0%
LOI        5.0%

 

Heavy Metals (Typical Data)

 

Pb        14 ppm
As        7 ppm

Other Properties (Typical Data)

Cation Exchange Capacity    80 – 90 meq / 100g

 

Product Specification

 

Identification

 

Identity A    A gelatinous white substance is formed
Identity B    The apparent volume of the sediment is not less than 22ml after 2 hours
Identity C    Gives the reaction of silicates

 

Purity

 

Alkalinity:   Decolourisation of bluish solution within 5 minutes
Coarse Particles: Max 0.5%
Heavy Metals: Max 50 ppm
Loss on Drying: Max 15%
Microbial Contamination TAMC: 103 cfu/g; max acceptable limit (Ph. Eur. 2.6.12): 2000

 

Functionality-Related Characteristics

 

Swelling power with water    See test: Identity B
Sedimentation Volume    The volume of the clear supernatant liquid is not greater than 2ml after 24 hours

 

For more information or to order, please contact us.