Crystalline silica cas number

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WebSTOT RE 1, if the crystalline silica (fine fraction) concentration is equal to, or greater than 10% (w/w); STOT RE 2, if the crystalline silica (fine fraction) concentration is between 1,0 and 10% (w/w). If the crystalline silica (fine fraction) content in mixtures and substances is below 1,0% (w/w), no classification is required. WebSilica, crystalline (as respirable dust) May 1994 Immediately Dangerous to Life or Health Concentrations (IDLH) 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 … In a number of instances when no relevant human or animal toxicity data were …

Silica ToxFAQs™ ATSDR - Centers for Disease Control and …

WebIssuance of a Safe Use Determination for Crystalline Silica in Sorptive Mineral-based Pet Litter. Notice of a Public Hearing for Comment on a Request for a Safe Use … WebFeb 1, 2024 · An abundant natural material, crystalline silica is found in stone, soil, and sand. It is also found in concrete, brick, mortar, and other construction materials. Crystalline silica comes in several forms, with … nike india test cricket jersey

Crystalline Silica - an overview ScienceDirect Topics

WebDec 10, 2015 · Product Name Crystalline Silica CAS Number 14808-60-7 Parchem - fine & specialty chemicals 415 Huguenot Street New Rochelle, NY 10801 (914) 654-6800 (914) 654-6899 parchem.com [email protected] EMERGENCY RESPONSE NUMBER CHEMTEL Toll Free US & Canada: 1 (800) 255-3924 All other Origins: 1 (813) 248-0585 ... WebChemical name CAS number % Crystalline silica (Quartz) 14808-60-7 < 4 All concentrations are in percent by weight. Raw materials in this product contain respirable crystalline silica as an impurity. The weight percent of respirable crystalline silica found in this product is < 4.0%. Exposures to respirable WebSILICA (CRYSTALLINE, RESPIRABLE) (silicon dioxide, quartz, tridymite, cristobalite) CAS Registry Number: 7631-86-9 . I. Chronic Toxicity Summary . Inhalation Reference … nsw south coast resort accommodation

Crystalline Silica EHS - University of Washington

Silicon dioxide is mostly obtained by mining, including sand mining and purification of quartz. Quartz is suitable for many purposes, while chemical processing is required to make a purer or otherwise more suitable (e.g. more reactive or fine-grained) product. Precipitated silica or amorphous silica is produced by the acidification of solutions of sodium silicate. The gelatinous precipitate or silica gel, is first washed and then dehydrated to produce … WebProduct Description: Crystalline Silica 11. Identification ofthe substance/preparation and ofthe company/undertaking 1.1. Identification ofthe substance orpreparation ... ComponentI CAS # % Crystalline Silica (quartz) 14808-60-7 98.7 -99.9 Aluminum Oxide 1344-28-1 <1.1 Iron Oxide 1309-37-1 <0.1 Titanium Oxide 13463-67-7 <0.1 I 4. FirstAid ... nsw south coast campingWebSynonyms: Silica, Crystalline; Crystallized Silicon Dioxide Chemical Name: Quartz Date: February 2010 Revision: April 2016 CAS Number: 14808-60-7 RTK Substance Number: … nsw south coast holiday accommodation

"WebAug 24, 2012 · While you've pointed out that IARC acknowledged that natural DE may contain 0.1 to 4% of crystalline silica, we respond that most of this silica is in the form of quartz. 4 You are aware that the calcination process converts some of the amorphous silica and/or quartz in the natural DE into cristobalite. 5 " - Crystalline silica cas number

Crystalline silica cas number

WebCrystalline Silica. Crystalline silica (quartz) has solubility of 5–6mg/L at 25°C and pH . 9, while amorphous silica has solubility ranging from 120 to 150mg/L at 25°C and pH 8–8.5 … WebThe 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. 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.

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WebDec 10, 2015 · Product Name Crystalline Silica CAS Number 14808-60-7 Parchem - fine & specialty chemicals 415 Huguenot Street New Rochelle, NY 10801 (914) 654-6800 (914) … WebSilica, crystalline - cristobalite RTECS # VV7325000 CAS # 14464-46-1; 1317-48-2; 105269-70-3 See: NMAM or OSHA Methods Updated March 2024 Molecular Weight 60.09 Molecular Formula O 2 Si Synonyms 43-63C alpha-Crystobalite Calcined diatomaceous earth Calcined diatomite Cristobalite Crysvarl Metacristobalite

WebSilica fume, also known as microsilica, (CAS number 69012-64-2, EINECS number 273-761-1) is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. WebJan 11, 2024 · SILICA, CRYSTALLINE, MIXED RESPIRABLE (QUARTZ, CRISTOBALITE, TRIDYMITE)‡ * All sampling instructions above are recommended guidelines for OSHA …

WebSilica Sand, Ground Silica and Fine Ground Silica Page 2 of 10 Component CAS No. Percent Crystalline Silica (quartz) 14808-60-7 95-99.9 Inhalation: First aid is not generally required. If irritation develops from breathing dust, move the person from the overexposure and seek medical attention if needed. Skin contact: First aid is not required WebThis information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure. More help available here. EC / List no.: 238-455-4 CAS no.: 14464-46-1 Mol. formula: O2Si

Webcrystalline silica: quartz (SiO2); [1] tridymite; [2] cristobalite; [3] Regulatory process names 2 ↓Groups: EC / List no.: - CAS no.: - Mol. Formula: Key datasets Brief Profile REACH …

WebChemical Name in the Inventory CAS Number Silica 7631-86-9 Cristobalite (SiO2) 14464-46-1 Quartz (SiO2) 14808-60-7 Fumes, silica 69012-64-2 ... Crystalline silica dust is … nsw south coast caravan parks guideWebSilica is found naturally in the environment. It is a compound made from silicon and oxygen and can come in different forms. All silica forms are made from the same chemicals but can have different structures. Silica is divided into two main groups, crystalline silica and amorphous silica (non-crystalline silica). The most common type of crystalline silica … nsw south coast holidaysWebOct 30, 2024 · Silica, crystalline (as respirable dust) Synonyms & Trade Names Cristobalite, Quartz, Tridymite, Tripoli CAS No. 14808-60-7 RTECS No. VV7330000 … nsw south coast retirement villagesWebCrystalline silica is essentially insoluble in water, … Crystalline silica, CAS Number: 99439-28-8 Crystalline silica – chemical information, properties, structures, articles, patents and more chemical data. Silica, crystalline (as respirable dust) – CDC Silica, crystalline (as respirable dust) … nsw south coast markets nike indirect competitorshttp://en.silicafumesupplier.com/crystalline-silica-cas-number.html nsw south coast weatherWebSilica 99.8 112945-52-5 LPLC Media & Accessories 381276 All Photos ( 1) Documents SDS /COA 381276 Silica 99.8% Synonym (s): Silica, fumed, Silica, Silicic anhydride, Silicon … nsw south coast road trip itinerary