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Potassium silicate

Potassium silicate structure

CAS No:
1312-76-1
Chemical Name:
Potassium silicate
Synonyms:
Silicic acid,potassium salt;Kasil;Potassium silicate;Soluble potash glass;Soluble potash water glass;Potassium water glass;PS 7;Potassium polysilicate;Pyramid 120;Kasil 6;Kasil 88;Kasil 1;SEK;Trolit AOS;PS 7 (silicate);Ohkaseal A;Betolin EP 219;Potassium Silicate A;Kasil SS;Silchem K 1420;Kasil 33;Inobond K 4009;Kasil 2130;K 53;K 120;K 53 (silicate);Betolin P 35;Crystal K 78;K 4009;Kasil 2236;Pyramid K 66;K 78;Kasolv SS;Kasolv 16;Potassium Silicate 2K;2K (salt);2K;Crystal K 120;Potassium Silicate 1K;Potassium Silicate OK 55;1K;OK 55;1K (salt);K 4/2;Kasil 2529;Betolin K 28;Kasil 1552;MAX 3;Kasil 2135;AgSil 25;AgSil 25F;Trasol KE-K;R 36;R 36 (silicate);Moersil H;Choline S 458K;K 66;Betolin P 50;PS 2228;Snowtex K 2;Protil N;Sil-Matrix;K 5020T;FP-V;Posil 35;Inocot 330;PS-C 200;Trasol KI-S;Trasol KC-K;HXY 205;Betol K 42T;Betol K 5020T;Betol K 57M;VP 19621;Kasil 1624;MT 2;Betol K 28T;AH-K 1;G 730;MOS 1010;Peiteng MOS 1010;DN 9366;Trasol KH-K;AH-K 2;Inocot K 2837;K 100;AR-K 100;KS 7675;Betolin P 35N;Inosil XM 35;Crosfect K 100;KC 40 (silicate);KC 40;Peiteng 1010;GHS 1378A;11116-04-4;12698-85-0;2137083-51-1;2415580-03-7
Categories:
Cosmetic Ingredient > Anticorrosive

Description

(Solid) Weight ratio Si O 2 :K 2 O varies with grade from 2.1:1 to 2.5:1; colorless anhydrous lump, shattered or granular. Soluble in water at high temperature and pressure; insoluble in alco- hol. (Solution) Colorless liquid, B′e range 29–48 degrees.

Potassium silicate Basic Attributes

Molecular Weight：

154.28

Exact Mass：

247.81100

EC Number：

215-199-1

HScode：

2839900090

Characteristics

PSA：

92.24000

XLogP3：

-0.73720

Appearance：

White Powder

Density：

1.203-1.209 g/cm³ @ Temp: 20 °C

Melting Point：

>300°C

Boiling Point：

> 100ºC

Water Solubility：

Soluble in water.

Storage Conditions：

Keep in a cool, dry location. Keep container tightly sealed.

Safety Information

wgk germany：

hazard class code：

37/38-41

safety instructions：

26-39

Marks：

Stability/Shelf Life：

Stable.

Potassium silicate Use and Manufacturing

Methods of Manufacturing

In the melting method, the silica sand and caustic potash are mixed in a certain ratio and then added to the melting furnace, which is heated to 1200 to 1400°C with heavy oil or electricity. When a completely molten transparent body is formed, it is discharged from the furnace to cool and solidify, and then put into the autoclave , Dissolved by pressurized steam (0.2MPa). The solution is allowed to stand for clarification to remove impurities, and the clarified solution is concentrated to obtain a finished product of potassium silicate. Its 2KOH+Nso2→K2O@nSiO2+H2O

Uses

As binder (e.g., in carbon electrodes, lead pencils, protective coatings, insoluble pigments); detergent, in glass and ceramics manufacture.

Material

Potassium hydroxide

Potassium carbonate

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