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Sodium silicate

Sodium silicate structure

CAS No:
1344-09-8
Chemical Name:
Sodium silicate
Synonyms:
Silicic acid,sodium salt;Dryseq;Sodium sesquisilicate;Sodium silicate;Water glass;Sodium water glass;Sodium β-silicate;Sikalon;Du Pont 26;Q 70;Star;N 38;Carsil (silicate);Silica N;Silica R;Silica E;Silica K;DP 222;49FG;L 96 (salt);Pyramid 8;L 96;Metso 99;AS Bond 1001;Pyramid 1;Portil A;Portil AW;Britesil C 24;Britesil;Britesil H 24;Britesil H 20;Carsil;DAB VI;HK 30;Agrosil S;Agrosil LR;RU Silicate;SS 3 (salt);SS 3;HS 240;Silco 4;Silicon sodium oxide;Stabisol 300/12;Nasil 40;Crystal 120A;Silchem 2500;Chemsilate;Crystal 100N;Silco S 4;N 38 (silicate);SS-C 200;Stixso RR;Portil N;Britesil C 20;Water glass 3;P 3 Saxin 5502;Pyramid P 40;Expantrol 4BW;Expantrol 2;HK 30 (silicate);SP 90;SP 90 (silicate);Antef M 1;Antef C 2;SB 41;Crystal 79;SP 70;SP 70 (silicate);Supercerac;K 28;PQ N Clear;GM 10;K 28 (binder);GM 10 (silicate);SP 33;SP 33 (sodium salt);Zeopol 25;Zeopol 33;Crystal 0070;Portil K;Silicate G;Silicate GD;Barasil S;TEX-SIL BP 42;Vitrosol N 40;Carsil 2000;SB 41 (silicate);RA 430;N 55;N 55 (silicate);Crystal 75;Crystal 0503;Crystal 52;Mejorsil;Formsil;Silicate M;Nasil 38/40;VR-T;Silchem 3379;PL 1548;Crystal 96;Pyramid P 70;Sodium Silicate 3;Vitrosol No 40;20N32;SCS 1;SCS 1 (silicate);Vitrosol N 48;Chemfin 60;Ineos 079;Ineos 140;7N34;Inosil Na 4237;Sialite 30-5;Sialite 60-3;Sodium Silicate 4;Crystal 0100S;ZhS 2 (silicate);ZhS 3 (silicate);ZhS 2;ZhS 3;N-Silicate;Betol 3P;Flochek A;8031-41-2;11105-00-3;37299-97-1;54249-86-4;65727-85-7;84992-49-4;106985-35-7;1095113-57-7;1197343-23-9;1202389-71-6;1202389-76-1;1613729-78-4;2194589-73-4;2232231-78-4;2627208-55-1
Categories:
Cosmetic Ingredient > Anticorrosive

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Description

COLOURLESS 25-50% SODIUM SILICATE SOLUTION IN WATER.

Sodium silicate Basic Attributes

Molecular Weight：

122.06300

Exact Mass：

121.94100

EC Number：

215-687-4

HScode：

2839191000

Characteristics

PSA：

63.19000

XLogP3：

-0.73720

Appearance：

Colourless liquid

Density：

1.4 g/cm³

Melting Point：

1410 °C(lit.)

Boiling Point：

2355 °C(lit.)

Refractive Index：

1.512 - 1.514

Water Solubility：

H2O: soluble

Storage Conditions：

Store in a cool, dry location in a sealed container.

Explosive limit：

Noncombustible

PH：

PH: ABOUT 12.5; HAS RELATIVELY HIGH BUFFER CAPACITY /0.5% SOLUTION/

Safety Information

Packing level：

Hazard category：

Transport codes：

UN 2922 8/PG 2

wgk germany：

hazard class code：

R36/38

safety instructions：

S26-S36/37-S45-S7/9-S28-S36/37/39

RTECS Number：

VW0400000

Marks：

Storage features：

Separated from strong acids, aluminium and zinc.

Stability/Shelf Life：

Stable. Incompatible with acids, most metals, many organic materials.

Precautionary statement(s)：

P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, P501

Hazard Statements：

H314

Sodium silicate Use and Manufacturing

Methods of Manufacturing

Dry soda and silica sand in proportion, melting, cooling, melting, clarification, concentrating to a certain concentration, by spray drying, to get powdered sodium silicate. 1. Dry processes include soda ash method, sodium sulphate (Glauber's salt) method and trona method. (1) soda ash method uniformly mixes soda and silica sand according to a certain proportion in the 1400 ~ 1500 ° C melting reaction, melt cooling formed by the water quenching glass frit, hot into the melting tank, and then heated to dissolve through the steam, after the settlement and concentration, obtaining water glass. (2) sodium sulfate method firstly makes sodium sulfate (Glauber's salt) and coal powder evenly mixed, then add silica sand, mixed evenly after the rapid addition of furnace reaction, after the reaction is completed, the product baked cooling, crushing, dissolution, precipitation, Preparation of water glass. (3) Trona method. Trona, silica sand and pulverized coal are mixed according to a certain proportion, and then the caustic soda slag is added to regulate the mixture. The mixture is preheated for 2 to 4 hours by the top of the furnace and then reacts in the furnace. After 3 ~ 5h forming a molten material, quenching by discharging water, dissolving, precipitating and condensing the glass material formed by cooling to obtain water glass. 2. Wet process.Liquid caustic soda and silica sand mixed in the appropriate proportion by adding the autoclave, the direct access to steam heating until the reactor pressure rose to 0.7 ~ 0.8MPa, the stop access to direct steam, steam jacket insulation, maintain the pressure, the reaction for several hours, the reaction is filtered, concentrated to produce water glass.

Uses

Analysis reagents. Fire retardant. Adhesive.

Material

Sodium hydroxide

SODIUM SULFATE

Sodium carbonate

Sulfuric acid

Sodium sulfate decahydrate

Sodium sulfate

Downstream Products

Sodium metasilicate pentahydrate

Zirconium sulfate

Sodium percarbonate

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