Chlorite

(redirected from chloritic)
Also found in: Dictionary, Thesaurus, Medical.

chlorite

[′klȯr‚īt]
(inorganic chemistry)
A salt of chlorous acid.
(mineralogy)
Any of a group of greenish, platyhydrous monoclinic silicates of aluminum, ferrous iron, and magnesium which are closely associated with and resemble the micas.

Chlorite

 

a salt of chlorous acid, HClO2. Chlorites are formed in the reaction of chlorine dioxide and alkaline solutions in the presence of H2O2 or reducing agents; for example,

2ClO2 + 2NaOH + H2O2 = 2NaClO2 + 2H2O + O2

In acidic media, chlorites are good oxidizing agents; in the solid state, they explode upon impact or upon heating, as well as in the presence of readily oxidizable impurities.

Of all the chlorites, sodium chlorite has found use. It is obtained as colorless crystals, whose solubility in water is 31.1 percent at 0°C, 50.7 percent at 37.4°C, and 56.3 percent at 70°C. Below 37.4°C, it forms the crystal hydrate NaClO2 · 3H2O. Above 100°C, it begins to decompose, forming sodium chlorate and sodium chloride. Upon reaction with chlorine, it forms ClO2 and NaCl. Sodium chlorite is used in the form of aqueous solutions for the mild bleaching of fabrics (mainly linens) and paper, for water decontamination, and, in small amounts, for the production of ClO2.

References in periodicals archive ?
These anomalously older ages maybe related to one or both of: (1) recoil effects due to the presence of K-free chloritic phases in the altered samples that are synchronous with zeolite formation (Kontak 2000), or (2) incorporation of excess argon during post-eruptive alteration attending zeolite formation.
The mineralogy of these rock types are primarily micaceous and chloritic minerals.
Gold in surface outcrops occurs in a silicic, chloritic, breccia body exposed in the margin and footwall of the intrusion.
The waste rock is highly weatherable (Milnes 1988) and decomposes rapidly from large competent chloritic schist fragments into medium and fine gravel and clay-rich detritus.
Both zones are exposed at the surface and occur as steeply dipping, parallel tabular stockworks of chloritic, amphibole, feldspar gneiss.
PLS13-055 intersected three radioactive intervals within sheared, graphitic, chloritic, sulfide-bearing metapelitic gneiss, including two discrete narrow intervals of off-scale radioactivity.
The Fire Lake Formation, composed mainly of chloritic phyllite of mafic metavolcanic composition (Murphy et al.
11) via listric detachment faults, with brittle-ductile transitions on the footwall from chloritic breccia to semi-ductile mylonite, fanning dips in syn-extensional upper-plate conglomerate units, domino-style upper-plate faults, and consistent angles of 50-70 degrees between detachments and bedding in conglomerate units (Seranne and Seguret 1987; Howard and John 1987; Lister and Davis 1989; Spencer and Reynolds 1989, 1991; Dickinson 1991).
2006) note the presence of syneresis cracks, lens-shaped deposits of chloritic rock with high MgO or Ba content, and with a unique geochemical signature that points to ancient brine seepage.
The areas of intense K-feldspar enrichment were less directly associated with porphyry gold and copper mineralization than sericitic and chloritic alteration; potassium anomalies' proximity to mineralization provided evidence of significant fluid/rock interaction associated with mineralization Areas A and C were interpreted as potassium alteration providing powerful exploration guidance for locating mineralised areas
Short term effectiveness was measured as the percent visual estimate of the reed patch that became chloritic, then necrotic (i.
In LAA0010, this alteration was accompanied by fine pyrite disseminated and in chloritic veinlets.