All suppliers Pfaltz & Bauer Silica Gel Grade 923 High Purity Chromatographic_x000D_

Information

Catalog number
S02578-500 G
Name
Silica Gel Grade 923 High Purity Chromatographic_x000D_
Supplier
Size
500 G
Price
640.00
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Details

CAS_No
7631-86-9
MDL_No
MFCD00011232
PICTOGRAM
07 - Irritant;
UDF_SIGNAL_WORD
Warning
HazardStatements
H302 Harmful if swallowed; H312 Harmful in contact with skin; H315 Causes skin irritation; H319 Causes serious eye irritation; H332 Harmful if inhaled; H335 May cause respiratory irritation.
PrecautionaryStatements
P261 Avoid breathing dust/fume/gas/mist/vapors/spray; P280 Wear protective gloves/protective clothing/eye protection/face protection; P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell; P302+P352 IF ON SKIN: wash with plenty of soap and water; P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing; P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing; P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
Test
A gel is a solid jelly-like material that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state. By weight, gels are mostly liquid, yet they behave like solids due to a three-dimensional cross-linked network within the liquid. It is the crosslinking within the fluid that gives a gel its structure (hardness) and contributes to the adhesive stick (tack). In this way gels are a dispersion of molecules of a liquid within a solid in which the solid is the continuous phase and the liquid is the discontinuous phase. The word gel was coined by 19th-century Scottish chemist Thomas Graham by clipping from gelatin.