性狀：
啤酒硅膠是一種非晶態(tài)多微孔結(jié)構(gòu)的固體粉末，孔徑為8-16nm，化學(xué)分子為式為mSiO2·nH2O，不溶于水和任何溶劑，除苛性堿和氫氟酸外，不與任何酸、堿、鹽起反應(yīng)。無毒、 無味、不燃燒、不爆炸，具有強(qiáng)的熱、冷穩(wěn)定性，對(duì)人體無害。主要用于啤酒工業(yè)。
用途：
1.啤酒硅膠具有大的比表面和無數(shù)適宜的微孔結(jié)構(gòu)，可以在幾分鐘內(nèi)把造成啤酒渾濁的蛋白質(zhì)吸附，經(jīng)過濾除去，可延長(zhǎng)啤酒貯藏期180-240天，防止啤酒出現(xiàn)冷渾濁。
2.不影響啤酒泡沫和口味。啤酒硅膠的物化性質(zhì)決定了它對(duì)啤酒泡沫和口味毫無影響，實(shí)踐也證明了啤酒硅膠是世界啤酒行業(yè)公認(rèn)的最安全的啤酒穩(wěn)定劑。
3.提高助濾效果。啤酒硅膠化學(xué)性質(zhì)穩(wěn)定，不含啤酒可溶物，其表面積和多微孔結(jié)構(gòu)均大大優(yōu)于硅藻土,是很好的助濾劑，輔助硅藻土過濾能使啤酒更明亮、更清澈。
技術(shù)指標(biāo)：
|
項(xiàng)目 |
指標(biāo) |
典型數(shù)值 |
|
孔容 ml/g |
0.9-105 |
1.1 |
|
比表面積 ㎡/g |
300-600 |
435 |
|
粒度（D50值） |
7-15 |
9.4 |
|
PH值 |
3-6 |
5.6 |
|
水分% ≤ |
8.0 |
1.7 |
|
重金屬（以Pb計(jì)） % ≤ |
0.003 |
＜0.003 |
|
Pb含量 % ≤ |
0.001 |
<0.001 |
|
砷含量 % ≤ |
0.0003 |
<0.0003 |
Characteristics
Silica gel for Beer is a kind of non-crystalline micro-porous solid powder, its pore diameter is 8-16 nm. Its chemical molecular formula is mSiO2·nH2O, insoluble in water or any other solvent(except the caustic alkali and hydrofluoric acid). It does not react with any acid, alkali or salt. It is nontoxic, tasteless, flame-resisting and nonexplosive. It possesses high stability under hot or cold atmosphere and is harmless to human body, mainly used in beer industry.
Use
1.It has large specific surface area and numerous fine-pored structure. It adsorbs the proteins which cause beer turbid and removes them through filtering, just within several minutes, thus prolonging beer storage period by 180-240 days and keeping beer from being cold muddy.
2.It does not affect the beer foam or taste. Thanks to its superior physical and chemical properties, it does not have any adverse effect on the beer foam or taste. It is justified through practice that beer silica gel is the safest beer stabilizer generally recognized by the world beer industry.
3.It helps improve the filter promoting effect. It is chemically stable, contains no beer soluble substances. Its surface area and porous structure are both superior to diatomite. It is a kind of ideal filter promoter in aiding diatomite filter, making beer brighter and clearer.
Technical data
|
Item |
Specifications |
Typical values |
|
Pore volume, ml/g |
0.9-105 |
1.1 |
|
Specific surface area, ㎡/g |
300-600 |
435 |
|
Size(D50) μm |
7-15 |
9.4 |
|
PH |
3-6 |
5.6 |
|
Moisture %≤ |
8.0 |
1.7 |
|
Heavy metal (by Pb) %≤ |
0.003 |
＜0.003 |
|
Lead(Pb) %≤ |
0.001 |
<0.001 |
|
Arsenic(As) %≤ |
0.0003 |
<0.0003
|
