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Specifications of O.C.M.A. grade / A.P.I.- 13 A ( Section 6 ) grade Bentonite powder.
1) Moisture 12.0% max. 2) Viscometer Reading 30.0 min. (600 r.p.m.) 3) Grit 2.5% max. 4) Filtrate 16.0 max. 5) PV-YP Ratio 6.0 max. 6) Sieve Analysis 98 % min. (Pass through 100 mesh sieve.) (Above results are taken after preparing 6.43% slurry of Bentonite powder with Distilled water (i.e. 22.5 grm Bentonite/350 ml D.water.) Note: Although we take enough care to maintain our quality standards as per guidelines of ISO 9001:2000, but here one should always keep in mind that Bentonite is a mineral found naturally & hence minor variations may tend to occur sometimes. FOUNDRY GRADE BENTONITE Specification RESULT 1.Wet tensile strength (WTS) : 0.2.5-0.3/cm2 2. Green Compressive Strength (GCS) : 8.5 - 11 N/cm2 3. pH value : 9 – 11 4. Free swelling value : 27– 30ml 5. Methylene Blue Value : 400 min gm/g 6. Moisture content : 13% 7. Particle size : 85%Passing 200 mesh 8.Gelling time INSTANT 9. MONTMORONITE 80% SPECIFICATIONS OF CALCIUM BENTONITE 1) Al2O3......................................16.4% 2) Si2O3.......................................45.0% 3) Fe2O3........................................5.6% 4) CaO..........................................1.18% 5) MgO.........................................2.43% 6) K2O...........................................0.13% 7) NaO...........................................8.10% 8) TiO2..........................................1.16% 9) LOI..........................................13.28% SPECIFICATION OF COSMETIC GRADE BENTONITE POWDER SPECIFICATION PARAMETER 1 COLOUR CREAMY WHITE 2 FINENESS 200MASH 95% PASSING 3 MOISTURE 4.5 TO 6.5% 4 SPECIFIC GRAVITY 1.7G/ML 5 BULK DENSITY 0.700 TO 0.900 6 PH 7 TO 10 SPECIFICATION OF IOP GRADE BENTONITE
NO. PARAMETERS SPECIFICATION CHEMICAL COMPOSITION 1 SiO2 % 52max. 2 Fe2O3 % 12min. 3 AL2O3 % 16max. 4 CaO% 0.5-1 5 Na2O% 2.0-2.5 6 MgO% 3.0max. PHYSICAL COMPOSITION 1 Moisture % ( ARB) 14.00 max. 2 PH 8.5 -10 3 Free Swelling Velum 28-30 4 Methylene Blue Absorption (MBA) mg/g. 400MIN. 5 Plate Water Absorption (PWA) % 600min. SEA WATER RESISTANCE BENTONITE
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