SDS

BOILINGPOINTANDRANGE
Notapplicable
FLASHPOINTANDFLAMMABILITY
Notapplicable
FLAMMABILITY/EXPLOSIVELIMITSAND
AUTOIGNITIONTEMPERATURE
Notapplicable
EVAPORATIONRATEANDDECOMPOSITIONTEMPERATURE
Notapplicable
VAPORPRESSUREANDVAPORDENSITYIN
AIR
Notapplicable
SPECIFICGRAVITY.
2.552.8
SOLUBILITYINWATER
Negligible
PARTITIONCOEFFICIENT:NOCTANOL/WATER
Notapplicable
SECTIONX–STABILITYANDREACTIVITY
STABILITYStable
CONDITIONSTOAVOID
Avoidcontactwithincompatiblematerials(seebelow).
THERMALSTABILITY
Ifcrystallinesilica(quartz)isheatedtomorethan870°C(1598°F),itcanchangetoaformofcrystallinesilicaknownastridymite,
andifcrystallinesilica(quartz)isheatedtomorethan1470°C(2678°F),itcanchangetoaformofcrystallinesilicaknownas
cristobalite.
INCOMPATIBILITY(Materialstoavoid)
Contact with powerful oxidizing agents such as fluorine, boron trifluoride, chlorine trifluoride, manganese trifluoride, and oxygen               
difluoridemaycausefireand/orexplosions.Silicadissolvesinhydrofluoricacidproducingacorrosivegassilicontetrafluoride.
HAZARDOUSDECOMPOSITIONPRODUCTS
Silicadissolvesinhydrofluoricacidproducingacorrosivegassilicontetrafluoride.
HAZARDOUSPOLYMERIZATIONNotknowntopolymerize
SECTIONXI–TOXICOLOGICALINFORMATION
EXPOSURELIMITS:
Belowisadefinitionofexposurelimitsintheworkplace,thatisespeciallyimportantwhencontactwiththisproductandother
chemicalsisconcurrent.Unlessspecifiedotherwise,limitsareeighthourtimeweightedaverages(TWA).Limitsforcristobaliteand
tridymite(otherformsofcrystallinesilica)areequaltoonehalfofthelimitsforquartz.
INHALABLEPARTICULATELIMITS
• 2001ACGIHTLV®=10mg/m3(inhalable/totalparticulate,nototherwisespecified)
• 2001ACGIHTLV®=3mg/m3(respirableparticulate,nototherwisespecified)
• OSHAPEL=15mg/m3(totalparticulate,nototherwiseregulated)
• OSHAPEL=5mg/m3(respirableparticulate,nototherwiseregulated).
RESPIRABLELIMIT,CrystallineSilica(SiO2orQuartz)
ACGIHTLV®=0.05mg/m3;MSHAandOSHAPEL=10mg/m3(%SiO2+2),forrespirabledustcontainingcrystallinesilica.
TOTALDUSTLIMITS,RESPIREABLEANDNONRESPIRABLE
1973ACGIHTLV®=30mg/m3÷(%quartz+3).MSHAPEL=10mg/m3fornuisanceparticulateslistedinAppendixEofthe1973
ACGIHTLV®booklet.[AppendixEincludes:alundum(Al2O3);calciumcarbonate;cellulose(paperfiber);Portlandcement;
corundum(Al2O3);emery;glass{fibrous(<57μmindiameter)ordust};glycerinmist;graphite(synthetic);gypsum;vegetableoil
mists(exceptcastor,cashewnut,orsimilarirritantoils);kaolin;limestone;magnesite;marble;pentacrythritol;plasterofParis
rouge;siliconcarbide;starch;sucrose;tinoxide;andtitaniumdioxide].
SafetyDataSheet(SDS)NaturalStoneasofJune1,2015 page6of9