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Merck - 1019640025 - CertiPUR di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB

  • MFR SKU: 1019640025
  • ITEM #: 7230325
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ITEM #: 7230325
Synonyms Bora x , Sodium biborate decahydrate, Sodium borate decahydrate
Hill Formula B 4 Na 2 O 7 *10H 2 O
Chemical formula Na 2 B 4 O 7 *10 H 2 O
HS Code 2840 19 90
EC number 215-540-4
Molar mass 381.32 g/mol
EC inde x number 005-011-00-4
CAS number 1303-96-4
Pkg. Type : Bottle, Glass
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Merck - 1019640025 - CertiPUR di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB

  • Item #: 7230325
  • MFR SKU: 1019640025
  • Catalogue Number 101964
  • Synonyms Borax, Sodium biborate decahydrate, Sodium borate decahydrate
  • di-Sodium tetraborate decahydrate
  • CAS number 1303-96-4
  • EC index number 005-011-01-1
  • EC number 215-540-4
  • Hill Formula BNaO*10HO
  • Chemical formula NaBO * 10 HO
  • Molar Mass 381.37 g/mol
  • HS Code 2840 19 90
  • Quality Level MQ300
  • Application di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18 (25° C) Certipur®. CAS 1303-96-4.
  • Density 1.730 g/cm3
  • Melting Point 75 ° C Elimination of water of crystallisation
  • pH value 9.0 - 9.5 (38.1 g/l, HO, 25 ° C)
  • Vapor pressure 0.213 hPa (20 ° C)
  • Bulk density 750 kg/m3
  • Solubility 49.74 g/l
  • LD 50 oral LD50 Rat 2660 mg/kg
  • LD 50 dermal LD50 Rabbit > 2000 mg/kg
  • Hazard Pictogram(s)
  • Hazard Statement(s) H319: Causes serious eye irritation.
  • H360FD: May damage fertility. May damage the unborn child.
  • Precautionary Statement(s) P202: Do not handle until all safety precautions have been read and understood.
  • P264: Wash skin thoroughly after handling.
  • P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
  • P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P308 + P313: IF exposed or concerned: Get medical advice/ attention.
  • P337 + P313: If eye irritation persists: Get medical advice/ attention.
  • Signal Word Danger
  • RTECS VZ2275000
  • Storage class 6.1D Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
  • WGK WGK 1 slightly hazardous to water
  • Disposal 3
  • Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
  • Categories of danger toxic for reproduction
  • Storage Store at +15° C to +25° C.
  • pH-value (25° C) 9.180 - 9.186
  • Identity passes test

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