di-Sodium tetraborate decahydrate 99.5-105.0%, GR ACS, Supelco®

Supplier: MilliporeSigma

Irritant Warning

Synonyms: Sodium Borate decahydrate , Sodium tetraborate decahydrate , Borax tetra

SX0355-1 SX0355-1 SX0355-20 SX0355-5 SX0355-5

CA-SX0355-5EA 789.45 CAD

CA-SX0355-5 CASX0355-1 EM-SX0355-1 EM-SX0355-5 EM-SX0355-20

di-Sodium tetraborate decahydrate 99.5-105.0%, GR ACS, Supelco®

di-Sodium tetraborate decahydrate

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs

Formula: Na₂B₄O₇·10H₂O
MW: 381.37 g/mol
Melting Pt: 75 °C (–H₂O of crystall.)

MDL Number: MFCD00149193
CAS Number: 1303-96-4
Merck Index: 13,08662

Specification Test Results

Assay	99.5-105.0%
Calcium (Ca)	0.005% max
Chloride (Cl)	0.001% max
Color	White
Form	Crystals/granules
Heavy metals (as Pb)	0.001% max
Insoluble matter	0.005% max
Iron (Fe)	5ppm max
pH of a 0.01 m solution at 25°C	9.15-9.20
Phosphate (PO4)	0.001% max
Sulfate (SO4)	0.005% max

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