NMR Tubes
Pipettes
Description
Pipettes, Graduated, Clear Glass, Short - Line, Graduated to Tip,
Amber Stain Graduation, (Serological type), Class ‘B’, RIVIERA Brand
Pipette, Transfer, Volumetric, Accuracy as per Class ‘A’, Made from Heat Resistant, IS 1117: 1975 Low Expansion Borosilicate Glass, with Individual Certificate of Performance, RIVIERA
Quartz Ware
Description
Vitreous Silica is the glassing modification of silcon dioxide with a purity of 99.9% in the transparent form and is called fused silica. All our silica ware products are made out of fused silica. Fused silica is completely unaffected by acids such as sulpuric, nitric and hydrochloric, however, it can be affected by hdrofluric acid and at high temperatures also by phosphoric acid. Hot alkalies and certain metallic oxides also react on fused silica.
Fused silica is boron free
They are of very low expansion and hence have excellent dimensional stability and thermal shock resistance
Technical Specifications:
- Electrical resistivity - (at 350°C) 7 x 107 ohm cm
- Average co-efficient of expansion - 5.5 x 10-7 / °C
- Softening point - 1685° C
- Annealing point - 1200° C
- Operating temperature (continuous) - 1050° C
- Operating temperature (intermittent) - 1350° C
Working temperature - 1950° C
Strain point - 1120° C
Reagent Bottles
Description
Riviera Reagent Bottle,
Narrow Neck, Amber/Clear
The amber colour is only applied externally ensuring that internal surfaces have standard clear glass properties
Very durable and chemically resistant amber colour
All glass components and therefore suitable for storage of aggressive materials
Tight closure due to standard ground joint
Fired-on, white ceramic print
Riviera All Glass Filtration Assembly
Description
Suitable for vacuum filteration of liquids for analysis, especially suitable for HPLC set up, both solvent and mobile phases. Very good compatibility with chemicals including very aggressive solvents. All parts made of borosilicate glass.
Portable, Oil-Free Vacuum Pump, RIVOTEK
Suitable for HPLC & Filteration applications. Supplied complete with Vacuum Gauge & Regulator
Glass Filter Holder – 47 mm
Glass Filter Holder 25 mm
Excellent suitability for microbiological application.
riviera desiccators
Description
Manufactured from clear glass 9.1 expansion
Due to the high wall-thickness of the vessels and the exact machining of the vacuum-tight ground joints on the lid and base, storage under vacuum is possible – even over extremely long periods.
To accelerate the drying process, a vacuum can be applied via the stopcock
Suitable for full vacuum (0 mbar)
Spare parts such as lids, bases, stopcocks and caps can be interchanged as required
Riviera Dishes
Description
Riviera Petri Dish
Free from bubbles and streaks
Manufactured from borosilicate glass 3.3
Riviera Evaporating Dish, with spout
Manufactured from borosilicate glass 3.3
Spout for clean pouring
Riviera Crystallizing Dish, with spout
Flat and wide shape allow solvents to evaporate quickly and evenly
Large ground base
Spout for clean pouring
Manufactured from borosilicate glass 3.3
Riviera Reagent Bottle with PP Screw Cap
Description
The ideal bottle for storage & sampling
Salient Feature:
Riviera Reagent Bottles, made from 3.3 Borosilicate Glass, are
now available in both Clear & Amber stained glass, highly
suitable for pouring of liquids as the necks have a PP pouring
ring which prevents the liquid from dripping.
Bottle with PP Screw caps and Pouring Rings are fully
autoclavable up to 140°C.
Amber stained bottles are particularly suitable for storage of
light sensitive chemicals.
Both the bottles, be it Clear & Amber have the features normally
associated with borosilicate glass 3.3 expansion chemically neutral,
heat resistant and thermal shock proof.
Bottles from 100 ml to 20 Ltrs have single thread size with GL45
Caps, For 25 ml & 50 ml the thread and cap sizes are GL25 & GL32
Respectively.
25 ml Bottles, Being small in size does not come with Pouring
Ring.
While autoclaving do remember to close the bottles loosely to
ensure pressure equalisation.
Riviera Volumetric Flask
Description
Riviera Volumetric Flask,
Class ‘A’ & Class ‘A’ USP with individual certificate
with printed graduation mark and ergonomic polyethylene stopper
Complies with IS915 : 2012
Made from borosilicate glass 3.3
Outstanding precision during volumetric measurement and high-quality process stability
Thanks to the exact processing and precisely calibrated scales, they permit the highly accurate determination and measurements of volume
Supplied with suitable glass stopper
Calibration based on the poured in volume (“In”) at a + 27 °C reference temperature
The volume content tolerances conform to accuracy Class ‘A’/Class ‘A’ USP
With printed ring mark for better visibility
Fired-on, highly durable white/amber print
Screw Caps For Laboratory Bottles
Silica Ware
Description
CHEMICAL PROPERTIES-
Fused Silica is neutral to all halogens and acids irrespective of temperature or concentration except hydro-fluoric and phosphoric acid. Phosphoric acid affects fused silica only at high temperatures and can be concentrated successfully in silica vessels. For all ordinary purposes they can be used with phosphoric acid. Sulphuric, Nitric and Hydrochloric acids or any mixture of these acids, do not affect Fused Silica even at temperatures upto 1000ºC. Cleaning of Silica ware regularly can ensure good service.
