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Merck - 1019610025 - CertiPUR Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB

  • MFR SKU: 1019610025
  • ITEM #: 7230318
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ITEM #: 7230318
Synonyms Potassium hydrogen o x alate-o x alic acid-water (1/1/2)
Hill Formula C 4 H 3 KO 8 * 2 H 2 O
HS Code 2917 11 00
EC number 204-874-6
Molar mass 254.20 g/mol
EC inde x number 607-007-00-3
CAS number 6100-20-5
Pkg. Type : Bottle, Glass
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Merck - 1019610025 - CertiPUR Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB

  • Item #: 7230318
  • MFR SKU: 1019610025
  • Catalogue Number 101961
  • Synonyms Potassium hydrogen oxalate-oxalic acid-water (1/1/2)
  • CAS number 6100-20-5
  • EC index number 607-007-00-3
  • EC number 204-874-6
  • Hill Formula CHKO * 2 HO
  • Molar Mass 254.20 g/mol
  • HS Code 2917 11 00
  • Quality Level MQ300
  • Application Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.67 (25° C) Certipur®. pH 1.7 (12.6 g/l, HO, 25 ° C).
  • Density 1.84 g/cm3 (20 ° C)
  • pH value 1.7 (12.6 g/l, HO, 25 ° C)
  • Bulk density 860 kg/m3
  • Solubility 25 g/l
  • Hazard Pictogram(s)
  • Hazard Statement(s) H302 + H312: Harmful if swallowed or in contact with skin.
  • H319: Causes serious eye irritation.
  • Precautionary Statement(s) P264: Wash skin thoroughly after handling.
  • P270: Do not eat, drink or smoke when using this product.
  • P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
  • P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
  • P302 + P352 + P312: IF ON SKIN: Wash with plenty of water. Call a POISON CENTER/doctor if you feel unwell.
  • P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • Signal Word Warning
  • Storage class 10 - 13 Other liquids and solids
  • 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 harmful
  • Storage Store at +15° C to +25° C.
  • Declaration (railroad and road) ADR, RID Kein Gefahrgut
  • Declaration (transport by air) IATA-DGR No Dangerous Good
  • Declaration (transport by sea) IMDG-Code No Dangerous Good
  • pH-value (25° C) 1.674 - 1.683

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