1272/2008. First-aid measures Inhalation Move to fresh air. 14808-60-7 Pennsylvania Right To Know Components Chemical name: Quartz CAS number: 14808-60-7 California Prop. SILICA, CRYSTALLINE (RESPIRABLE DUST) CAS number: Limestone is a naturally occurring mineral complex that contains ... CAS number/other identifiers Component CAS # % by weight . An important issue arising from the definition of respirable crystalline silica is how to evaluate its fraction present in the mixture and how to classify the crystalline silica quartz according to it. Jong-Song Lee, Ph.D. Valerie Meyers, Ph.D. ACGIH Threshold Limit Values Components Type Value Form Cellulose (CAS 9004-34-6) TWA 10 mg/m3 Crystalline silica (Quartz) TWA 0.025 mg/m3 Respirable fraction. SAFETY DATA SHEET [Harber, p. 373] Exposure to crystalline silica (alpha-quartz and cristobalite) is associated with lung fibrosis (silicosis) and increased risk of lung cancer. May 2011. Silica - 1 of 3 : Web Publication Date July 2013 . Silica, crystalline: quartz dust, ... CAS number 14464-46-1 Synonyms tridymite, α-tridymite, low tridymite CAS number 15468-32-3 Molecular formula SiO 2 Molecular weight 60.09 Quartz Cristobalite Tridymite Temperature at which the 573°C 270°C 130°C α-modification is transformed A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. CAS Registry Numbers: 7631-86-9 (synthetic amorphous silica) 60676-86-0 (fused) 69012-64-2 (silica fume) 61790-53-2 (uncalcined diatomaceous earth) 112945-52-5 (pyrogenic colloidal silica) 112926-00-8 (precipitated silica and silica gel) Prepared by . Silica is commonly found in nature as sand. INTERNATIONAL REGULATIONS Amorphous silica, CAS Number 7631-86-9, is listed on the WHMIS Ingredient Disclosure List at a concentration threshold of 1%. First Aid Measures 4. Hazardous Ingredients Name: Silica, Quartz, Crystalline Silica, SiO2, CAS Number: 14808-60-7 Concentration (%): >99 (Note: Divot Fix with Peat includes approximately 10% by volume Canadian Spagnum Peat. Silica, Amorphous and Other Non-Crystalline Forms CAS #: synthetic amorphous silica: 7631-86-9; fused silica: 60676-86-0; silica fume: 69012-64-2; uncalcined diatomaceous earth: 61790-53-2; pyrogenic colloidal silica: 112945-52-5; precipitated silica and silica gel: 112926-00-8 Chief Engineer’s Office June 2011 Chemical Name: Silica, Crystalline (respirable PM 4) CAS: 7631-86-9 . SILICA (CRYSTALLINE, RESPIRABLE) (silicon dioxide, quartz, tridymite, cristobalite) CAS Registry Number: 7631-86-9 I. Silica exists in many different forms that can be crystalline as well as non-crystalline (amorphous). This product contains a chemical known to the State of California to cause cancer. Check individual state requirements. CAS Number: 99439-28-8 . TSCA: Call a physician if symptoms develop or persist. Crystalline silica (Quartz) TWA 0.3 mg/m3 Total dust. Crystalline silica is found in varying proportions in aggregates, mortar, concrete and stone. Chemical name CAS number % Crystalline silica (Quartz) 14808-60-7 < 2 STRUCTO-LITE® Basecoat Plaster SDS US 918231 Version #: 01 Revision date: - Issue date: 29-January-2014 1 / 7. It can be released into the air when the rock or articles made from the rock are crushed, cut, or worked in some other way. based on a purely physical classification (with no specific CAS number). M: M-factor Crystalline silica is the name for a group of naturally occurring minerals found in many types of rock. Synonyms & Trade Names Cristobalite, Quartz, Tridymite, Tripoli CAS No. In contrast, CO2 is a linear molecule. CAS Registry Number: 7631-86-9 Downloads Memo of Adoption of Chronic Reference Exposure Levels for Silica (Crystalline, Respirable) Feb 10, 2005 Adopted Chronic Reference Exposure Levels for Silica (Crystalline, Respirable) Feb 10, 2005 Crystalline silica as trydimite and cristobalite are more fibrogenic than crystalline silica as quartz. Thus, SiO2 forms 3 dimensional network solids in which each silicon atom is covalently bonded in a tetrahedral manner to 4 oxygen atoms. Current OSHA PEL: TWA 50 µg/m 3 1989 OSHA PEL: Cristobalite: 0.05 mg/m 3 TWA Neither OSHA or ACGIH has established an exposure limit for peat.) California Prop 65: This product does contain an ingredient which is known to the state of In the majority of silicates, the silicon atom shows tetrahedral coordination, with four oxygen atoms surrounding a central Si atom (see 3-D Unit Cell). Non-Cancer Health Based Value (HBV subchronic) = Not Derived. 65 components Chemical name: Silica, crystalline CAS number: 14808-60-7 Crystalline silica is a basic component of soil, sand, granite, and many other minerals. Quartz is the most common form of crystalline silica. Cristobalite and tridymite are two other forms of crystalline silica. All three forms may become respirable size particles when workers chip, cut, drill, or grind objects that contain crystalline silica. 65 Components WARNING! Respirable Crystalline Silica (RCS) may cause cancer. Crystalline silica is a collective term that can refer to quartz, cristobalite, tridymite, and several other rare silica minerals. Chronic Toxicity Summary Inhalation Reference Exposure Level 3 µg/m3 [respirable, as defined occupationally by ACGIH (2004)/ISO (1995) Critical effect(s) Silicosis in miners and other workers Amorphous silica, CAS Number 7631-36-9, appears on the following state hazardous substance lists: CA, IN, KY, MA, MN, NC, NJ, OR, and PA. Silica, Amorphous . Composition comments All concentrations are in percent by weight unless ingredient is a gas. CAS # Crystalline Silica (quartz) SiO2 99.0 - 99.9 14808-60-7 Aluminum Oxide Al2O3 < .8 1344-28-1 Iron Oxide Fe2O3 < .1 1309-37-1 Titanium Oxide TiO2 < .1 13463-67-7 Inhalation: No specific first-aid is necessary since the adverse health effects associated with exposure to crystalline silica (quartz) result from chronic exposures. Crystalline Silica - The New Asbestos . Respirable crystalline silica (RCS) has been touted as "the new asbestos" due to a recent surge of silicosis diagnoses, one of the most common occupational lung diseases affecting workers worldwide. It is believed that this significant workplace hazard could rival the impact of asbestos in coming years as the full extent of the problem is still coming to light. Silica commonly used in industries is in synthetic form. Crystalline silica exists in several forms, the most common of which is quartz. Composition / Information on Ingredients Common Name Crystalline Silica Synonym(s) Silicon Dioxide Formula Mixture CAS Number 14808-60-7 COMPONENT CAS NUMBER CONCENTRATION Crystalline Silica 14808-60-7 0.1 - 1% wt. 40 Amorphous silica with submicron particle size has a variety of highly unique physical and chemical 41 properties and potential as an additive in a variety of processing industries (Villota and Hawkes, 1986). However, the method’s webpage includes a link to the NIOSH Pocket Guide to Chemical Hazards page for RCS dust, where the only CAS number listed is 14808-60-7. Silica is a naturally occurring material in minerals, flint and in some plants in crystalline phase. OSHA published a final rule on occupational exposure to respirable crystalline silica on Featured suppliers/resources for Crystalline silica List your site here. Non-Cancer Health Based Value (HBV acute) = Not Derived. Quartz CAS-No. Crystalline Silica (quartz) 14808-60-7 >0.1. The regulations at 29 CFR 1910.1053 (respirable crystalline silica) do not list CAS numbers. One of the most serious dangers of silica dust is silicosis, a condition that can reduce a person’s capacity to breathe. Exposure to the dust may also result in lung cancer, stomach cancer, and renal disease. It can also lead to other lung diseases, such as tuberculosis and emphysema. 1 This is the general CAS Number for either crystalline or amorphous silica. Chemical name Common name and synonyms CAS number % Crystalline silica 14808-60-7 30 - < 40 *Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret. For a chart of SiO 2 CAS … A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. distribution, i.e. Chemical name Common name and synonyms CAS number % SILICA, CRYSTALLINE, QUARTZ 14808-60-7 3 - < 5 Other components below reportable levels 90 - 100 SILICA, CRYSTALLINE, 14464-46-1 CRISTOBALITE 1 - < 3 DSD: Directive 67/548/EEC. COMPOSITION / INFORMATION ON INGREDIENTS Chemical Name Wt.% CAS Silica, Crystalline quartz (non- respirable) Up to 100 14808-60-7 Silica, Crystalline quartz (respirable fraction) < 10 14808-60-7 Page 2 of 9. (CAS 14808-60-7) Distillates (petroleum), TWA 5 mg/m3 Inhalable fraction. It is the fine fraction of the dust, the respirable fraction, that is … However, the rule does specify the action level of airborne respirable silica dust as 25 micrograms per cubic meter of air and a permissible exposure limit … US. Silicon and oxygen are the two most abundant elements in the earth’s crust. Silica occurs in both crystalline and amorphous forms. and Other Non-Crystalline Forms . There … #: This substance has been assigned Community workplace exposure limit(s). Section 4. * This form of Silica is considered a nuisance dust and is not the same as Crystalline Silica. Synonyms: silicon dioxide, quartz, cristobalite, tridymite. The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. CAS number: 14808-60-7 California Prop. The starkly different structures of the dioxides of carbon and silicon is a manifestation of the Doubl… The most common form of crystalline silica is quartz (CAS 14808-60-7). TSCA Definition 2019: Portland cement is a mixture of chemical substances produced by burning or sintering at high temperatures (greater than 1200.degree.C (2192.degree.F)) raw materials which are predominantly calcium carbonate, aluminum oxide, silica, and iron oxide. Silica, crystalline Safe Work Australia — 2019 DRAFT 1 . Uncalcined DIATOMACEOUS EARTH typically contains around 1% Crystalline Silica. Silica is synonymous with silicon dioxide (SiO2). If crystalline silica (quartz) is heated to more than 870°C, it can change to a form of crystalline silica known as trydimite, and if crystalline silica (quartz) is heated to more than 1470°C, it can change to a form of crystalline silica known as cristobalite. Chemical name CAS number % Crystalline silica (Quartz) 14808-60-7 < 1 SHEETROCK® Brand All Purpose Joint Compound SDS US 917158 Version #: 01 Revision date: - Issue date: 31-December-2013 1 / 7. Surface area, pore volume, pore size and particle size are independently controllable to some extent. (Crystalline Silica) DATE PREPARED: 12/10/2015 Page 2 of 8 Section 3. (CAS 14808-60-7) 0.1 mg/m3 Respirable. Silica, crystalline (as respirable dust) Related Pages. Buy Silicon dioxide (CAS 60676-86-0), a finely ground SiO2 preparation known as Amorphous, from Santa Cruz. 4 IOM Research Project: P937/8. NIOSH’s Registry of Toxic Effects of Chemical Substances webpage for crystalline silica (quartz) relists CAS number … Crystalline Silica (Non-combined quartz) Titanium Dioxide Weight Percent (Typical) > 90 < 0.5 < 3 CAS Number EC Number 1318-74-7 215-286-4 14808-60-7 238-878-4 13463-67-7 236-675-5 Section 4: FIRST AID MEASURES Route of Entry and First Aid • Inhalation: Dust may irritate respiratory system. hydrotreated heavy Individual Protection Measures, Such as Personal Protective Equipment Quartz is the most common crystalline form, and it causes most cases of silicosis. The term ... CAS number: 14808-60-7 boiling point: 2477 °C (4490 °F) melting range: 1705 °C (3101 °F) density: 2.6 calculated The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. 3. Granite contains 25 per cent to 40 per cent quartz, shales average 22 per cent and sandstones average 67 per cent quartz. Composition comments All concentrations are in percent by weight unless ingredient is a gas. Calcium Carbonate 1317-65-3 >50 . CLP: Regulation No. Inhaling crystalline silica can lead to serious, sometimes fatal illnesses including silicosis, lung cancer, tuberculosis (in those with silicosis), and chronic obstructive pulmonary disease (COPD). In addition, silica exposure has been linked to other illnesses including renal disease and other cancers. Molecular Formula: SiO2, Molecular Weight: 60.08 IMIS25,26,27: 9000 (silica, crystalline, mixed respirable (quartz, cristobalite, tridymite)) 9010 silica, crystalline quartz (respirable fraction) S103 silica (quartz, total) CAS number: 14808-60-7 boiling point: 2477 °C (4490 °F) melting range: 1705 °C (3101 °F) density: 2.6 calculated molecular weight: 60.08 14808-60-7 … Amorphous silca: pyrogenic (fumed) amorphous silica (112945-52-5, formerly under 7631-86-9); Precipitated silica, including silica gel (112926-00-8, previously under 7631-86-9; deleted CAS number 112945-53-6); Diatomaceous earth (uncalcined)(61790-53-2; deleted CAS numbers 53571-43-0; 77108-41-9, 61970-41-0, 37337-67-0; 56748-40-4; 54990-62-4; 54990-61-3; 57692-84-9; 81988-94-5; 67417 … CAS Number: 61790-53-2 DOT Number: None DOT Hazard Class: None ----- HAZARD SUMMARY * Silica, Amorphous Diatomaceous Earth can affect you when breathed in. Chemical Name Amount CAS Number OSHA PEL ACGIH TLV Silicon Dioxide, SiO2 >85% 14808-60-7 0.1 mg/m3 .1 mg/m3 (respirable dust) Particulates Not Otherwise Classified or Regulated 15 mg/m3 respirable COMPOSITION COMMENT: Silica, Crystalline Quartz (r espirable). CAS number: 14808–60–7 NIOSH REL: 0.05 mg/m 3 TWA; NIOSH considers crystalline silica to be a potential occupational carcinogen as defined by the OSHA carcinogen policy [29 CFR 1990]. CAS number/other identifiers Substance/mixture: Sand and Gravel Ingredient name % CAS number Sand and Gravel > 99 None Crystalline Silica (Quartz) > 1 14808-60-7 Any concentration shown as a range is to protect confidentiality or is due to process variation.
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