| Identification | More | [Name]
Sodium silicate | [CAS]
1344-09-8 | [Synonyms]
SILICON
SILICON AA/ICP CALIBRATION/CHECK STANDARD
SILICON AA SINGLE ELEMENT STANDARD
SILICON, AAS STANDARD SOLUTION
SILICON AA STANDARD
SILICON ATOMIC ABSORPTION SINGLE ELEMENT STANDARD
SILICON ATOMIC ABSORPTION STANDARD
SILICON ATOMIC ABSORPTION STANDARD SOLUTION
SILICON ATOMIC SPECTROSCOPY STANDARD
SILICON ICP/DCP STANDARD
SILICON ICP STANDARD
SILICON METAL
SILICON METALLO-ORGANIC STANDARD
SILICON, OIL BASED STANDARD SOLUTION
SILICON PLASMA EMISSION SPECTROSCOPY STANDARD
SILICON PLASMA EMISSION STANDARD
SILICON, PLASMA STANDARD SOLUTION
SILICON SINGLE ELEMENT PLASMA STANDARD
SILICON SINGLE ELEMENT STANDARD
SILICON STANDARD | [EINECS(EC#)]
231-130-8 | [Molecular Formula]
Na2O3Si | [MDL Number]
MFCD00085311 | [Molecular Weight]
122.06 | [MOL File]
1344-09-8.mol |
| Chemical Properties | Back Directory | [Appearance]
colourless liquid as usually supplied (solution) | [Melting point ]
1410 °C(lit.)
| [Boiling point ]
2355 °C(lit.)
| [density ]
2.33 g/mL at 25 °C(lit.)
| [refractive index ]
1.520 | [storage temp. ]
-20°C | [solubility ]
H2O: soluble
| [form ]
powder
| [color ]
Colorless | [Odor]
Odorless | [PH]
13.5 (20°C in H2O) | [Stability:]
Stable. Incompatible with acids, most metals, many organic materials. | [biological source]
mouse | [Water Solubility ]
very slightly soluble cold H2O [MER06] | [Merck ]
13,8751 | [Dielectric constant]
16.0（Ambient） | [InChIKey]
NTHWMYGWWRZVTN-UHFFFAOYSA-N | [Uses]
Sodium Silicate is a product used as a preservative for eggs. | [CAS DataBase Reference]
1344-09-8(CAS DataBase Reference) | [EPA Substance Registry System]
Sodium silicate (1344-09-8) |
| Hazard Information | Back Directory | [Chemical Properties]
Sodium silicate,NA2Si03 also known as a liquid glass, silicate of soda, sodium metasilicate, and soluble glass, is a grayish-white crystalline powder that has a melting point of 1088 °C (1990 °F). It is soluble in water and has strong detergent and emulsifying properties. Sodium silicate is used to fireproof textiles, insulate electric wire, protect wood and porous stone, grease proof paper containers, and as a catalyst in refining high-octane gasoline.
| [Definition]
ChEBI: An inorganic sodium salt having silicate as the counterion. | [Description]
Sodium silicate, 2Na2OSiO2, is the simplest form of glass. It is found as lumps of greenish glass soluble in steam under pressure, white powders of varying degrees of solubility, or liquids cloudy or clear. It is noncombustible; however, when the powdered form is suspended in air, it could cause a dust explosion if an ignition source is present. Breathing the dust may also cause health problems. The glass form could also create a hazard to responders in an accident. It is not listed as a hazardous material in the DOT Hazardous Materials Tables. The primary uses are as catalysts, soaps, adhesives, water treatment, bleaching, waterproofing, and flame retardant. | [Purification Methods]
Sodium silicate solution [1344-09-8] pK 1 9.51, pK 2 11.77 (for silicic acid, H4S i O4) Purify by contact filtration with activated charcoal. | [Flammability and Explosibility]
Notclassified | [Industrial uses]
Sodium silicate (liquid silicate, metso or sodium silicate beads) has the general formula
Na2SiO3. The liquid silicates (“O” and “N” brand) are clear, thick liquids, while silicate
powder is a granular, white substance. Sodium silicate is a mixture of sodium or potassium
salts. Sodium silicates are primarily used in mineral flotation practice. | [Industrial uses]
Sodium silicate is widely used in mineral flotation as depressant, dispersant and as controlling
agent of some soluble ions For example, sodium silicate interacts with calcium
ions in solution forming nearly insoluble calcium silicate. For industrial and sulfatetype
minerals (barite), sodium silicate is usually part of the reagent scheme. Sodium silicate
is extensively used in base-metal flotation. | [Toxicology]
Aqueous solutions of Sodium Silicate species are a part of a chemical continuum of silicates based on an equilibrium of alkali, water, and silica. This compound, administered orally, is readily absorbed from the alimentary canal and excreted in the urine. Dogs fed 2.4 g/kg/day of Sodium Silicate for 4 weeks had gross renal lesions but no impairment of renal function. It was a severe eye irritant in some eye irritation studies but was irritating or nonirritating in others. A skin freshener containing Sodium Silicate was nonirritating. Rats given Sodium Silicate (600 and 1200 ppm of added silica) in the drinking water in reproductive studies produced a reduced number of offspring: 67% of controls at 600 ppm and 80% of controls at 1200 ppm[1].
| [References]
[1] Elmore, Amy R. “Final report on the safety assessment of potassium silicate, sodium metasilicate, and sodium silicate.” International Journal of Toxicology 24 Suppl 1 (2005): 103–17.
|
| Safety Data | Back Directory | [Hazard Codes ]
F,Xi,T,C | [Risk Statements ]
R11:Highly Flammable.
R36/38:Irritating to eyes and skin .
R34:Causes burns.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R35:Causes severe burns.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S7/9:Keep container tightly closed and in a well-ventilated place .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36:Wear suitable protective clothing . | [RIDADR ]
UN 2922 8/PG 2
| [WGK Germany ]
2
| [RTECS ]
VW0400000
| [F ]
34 | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
28391910 | [Hazardous Substances Data]
1344-09-8(Hazardous Substances Data) | [Toxicity]
LD50 oral in rat: 1960mg/kg |
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