질석, 박락

질석, 박락 속성

질석, 박락 C화학적 특성, 용도, 생산

용도

As catalyst; loose fill insulation, filler and packing material.

농업용

Vermiculite is a clay mineral. It is similar to trioctahedral smectites, with a structure that is balanced by interlayer ions of mostly magnesium and sometimes calcium. In other words, vermiculite is a hydrated silicate, which results from the alteration of mica, especially an aluminosilicate of magnesium. The formula of vermiculite is:
Vermiculite is a tri-octahedral phyllite (2: 1) with a basal spacing of lOA varying between 1A and lOA, according to the nature of the interlayer cations. The following are the principal differences between vermiculites and smectites. (i) Vermiculites have a large grain size. (ii) Vermiculites have a higher cation exchange capacity and, when treated with glycol, achieve basal spacing of about 14A while smectites take double layers, with a basal spacing swelling to 17A. (iii) Smectites dehydrate more rapidly while vermiculites rehydrate more rapidly.
In soils, vermiculites are mostly clays of transformation, formed from the degradation of micas or illites. They have a high cation exchange capacity (CEC) of 100 to 150 meq/100 g, which endows them a high affity for weakly hydrated ions such as K+, N&+ and Caz+. Consequently, vermiculite-rich soils exhibit high potassium-fixation capacity.
Vermiculite does not swell as much as montmorillonite. Vermiculite is a 2:1 clay mineral, similar in structure to hydrous magnesium. On rapid heating, vermiculite assumes a worm-like shape, alluding to a peculiar exfoliation phenomenon. When heated, it can also expand to a lightweight, highly absorbent, fireproof material about 16 times its original volume. In natural state, the mineral has no useful application, but it provides a low-density material with excellent thermal and acoustic insulation properties when exfoliated. Vermiculites in flakes are useful as a medium for growing tissue-culture plants and for insulation.

질석, 박락 준비 용품 및 원자재

원자재

준비 용품

질석, 박락 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Yujiang Chemical (Shandong) Co.,Ltd.	+86-17736087130 +86-18633844644	catherine@yjchem.com.cn	China	978	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21668	55
Dayang Chem (Hangzhou) Co.,Ltd.	571-88938639 +8617705817739	info@dycnchem.com	China	52861	58
GIHI CHEMICALS CO.,LIMITED	+8618058761490	info@gihichemicals.com	China	50000	58
LEAPCHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	43348	58
Shanghai Acmec Biochemical Technology Co., Ltd.	+undefined18621343501	product@acmec-e.com	China	33350	58
Adamas Reagent, Ltd.	400-6009262 16621234537	chenyj@titansci.com	China	14104	59
BOC Sciences	1-631-485-4226; 16314854226	info@bocsci.com	United States	14059	65
Bide Pharmatech Ltd.	400-164-7117 13681763483	product02@bidepharm.com	China	41438	60
Shanghai DiBai Chemicals Co., Ltd.	021-54359730 400-008-9730	info@chemxyz.com	China	3991	60

질석, 박락 관련 검색: