Silicates
In chemistry, a silicate is any member of a family of anions consisting of silicon and oxygen, usually with the general formula [SiO(4−2x)−4−x]n, where 0 ≤ x < 2. The family includes orthosilicate SiO4−4 (x = 0), metasilicate SiO2−3 (x = 1), and pyrosilicate Si2O6−7 (x = 0.5, n = 2). The name is also used for any salt of such anions, such as sodium metasilicate; or any ester containing the corresponding chemical group, such as tetramethyl orthosilicate.Silicate anions are often large polymeric molecules with an extense variety of structures, including chains and rings (as in polymeric metasilicate [SiO2−3]n), double …
WikipediaPublications
World Bank Group · 8 April 2024 English
process heat (grain drying, soy derivatives, ferro silicates, meatpacking), as do industries catering to the …
EU: European Union · 27 March 2024 English
Clay minerals are a key factor in mineral soils as they are controlling physic, chemical and biological soil properties. The X-ray diffraction (XRD) analysis has been widely used to identify …
kaolinite 2, chlorite 2, quartz 1, feldspars 1, other silicates and iron oxides 1. The relative abundance of … contain clay minerals, only quartz and primary silicates (feldspars, amphibole, mica). 4.2 Results …
PICES: North Pacific Marine Science Organization · 29 February 2024 English
NPRB directs research towards species, processes, and dynamics in the marine ecosystems of Alaska, including the Gulf of Alaska, the Bering Sea, the Aleutian Islands, and the Chukchi and Beaufort …
Quality Days, Extracted Seawater, Dissolved Silicates Concentration, Habitat Mediated Flow, Sediment Transport …
Snowy Hydro · 15 February 2024 English
Its noted that the project site for the power station takes up only a fraction of the overall former smelter site that is the subject of the remediation EIS and …
Asbestos means the fibrous form of those mineral silicates that belong to the serpentine or amphibole groups …
CEPII: Centre d’Etudes Prospectives et d’Informations Internationales · 17 January 2024 English
DT n° 2024-02, January 2024 International trade in healthcare products took off in the 2000s at the height of hyper-globalisation. Twenty years on, the Covid-19 shock drove home to governments …
04 2 495 390 1 284210 Salts: double or complex silicates 0.10 6 736 2 066 1 B 284290 Salts: of inorganic …
EWG: Environmental Working Group · 17 January 2024
A = aquatic toxicity, C = carcinogenicity, D = reproductive toxicity (development), F = reproductive toxicity (fertility), L = reproductive toxicity (lactation [breast-feeding children]), M = mutagenic, Sr = sensitization …
compounds with the exception of aluminium beryllium silicates, and with those specified elsewhere in this - …
EWG: Environmental Working Group · 21 December 2023 English
Listed on the 14th Report on Carcinogens as a 1-CHLORO-2,3-EPOXYPROPANE Epichlorohydrin 106898 reasonably anticipated human carcinogen List of substances prohibited in cosmetic products from Annex II of the Regulation (EC) …
compounds with the exception of aluminium beryllium silicates 7440417 1223/2009 of the European Parliament and …
EWG: Environmental Working Group · 21 December 2023 English
The International Fragrance Association restricts this ingredient 2-ACETONAPHTHONE Methyl βnaphthyl ketone 93083 to a maximum concentration of 0.2% in leaveon products restriction limits in the finished product (using the IFRA …
mercury (< 1 ppm), and cadmium (< ALUMINUM IRON SILICATES Silica, amorphous; silicate; borosilicate 7631869 … inhalable. (designated as sensitizing ALUMINUM IRON SILICATES Aluminum Compounds asthmagen by the Association …
EU: European Union · 30 November 2023 English
Directive, “asbestos” means the following fibrous silicates, which are classified as carcinogens 1A pursuant … there is a need to update the list of fibrous silicates set out in Article 2 in light of scientific knowledge … appropriate or necessary to update the list of fibrous silicates set out in Article 2. The Commission shall evaluate … is appropriate to include additional fibrous silicates, such as erionite, riebeckite, winchite, richterite …
EWG: Environmental Working Group · 29 November 2023
1,3,5-Triazine, 2,4-dimethoxy-6-(1-pyrenyl)- 3271-22-5 Chemical on the California Department of Toxic Substances Control Candidate Chemical List 1,3,5-Tribromobenzene 626-39-1 Chemical on the California Department of Toxic Substances Control Candidate Chemical List 1,3,5-Trichlorobenzene …
compounds with the exception of aluminium beryllium silicates, and with those specified through prolonged or …
