{"product_id":"buffer-powder-pillows-ph-4-01-0-02-at-25-degrees-c-250-pk-hach-2226964","title":"Buffer Powder Pillows pH 4.01 +\/- 0.02 at 25 degrees C, 250\/PK, HACH, 2226964","description":"\u003cp\u003e\u003cstrong\u003eHACH® Buffer Powder Pillows pH 4.01 +\/- 0.02 at 25 degrees C, 250\/PK, 2226964\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epH Buffer standard solutions for laboratory and field analyses\u003c\/li\u003e\n\u003cli\u003epH Buffer Powder Pillows for pH electrode calibration\u003c\/li\u003e\n\u003cli\u003eEach powder pillow prepares 50 mL of fresh buffer solution\u003c\/li\u003e\n\u003cli\u003eColor-coded for easy identification (Red)\u003c\/li\u003e\n\u003cli\u003epH is 4.01 ±0.02 at 25°C\u003c\/li\u003e\n\u003cli\u003eAppearance: red powder\u003c\/li\u003e\n\u003cli\u003eCAS Nos.:  components are not at reportable levels\u003c\/li\u003e\n\u003cli\u003epH: 4.0 (10% solution)\u003c\/li\u003e\n\u003cli\u003eMelting\/Freezing Point: 264 °C \/ 507.2 °F\u003c\/li\u003e\n\u003cli\u003eSpecific Gravity\/Density: 1.66 g\/mL\u003c\/li\u003e\n\u003cli\u003ePartition Coefficient:  log Kow ~ -2.73\u003c\/li\u003e\n\u003cli\u003eSoil Organic Carbon\/Water Partition Coefficient:  log Koc ~ 1.91\u003c\/li\u003e\n\u003cli\u003eSolubility: \u0026gt;1000 mg\/L water at 25 °C \/ 77 °F\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HACH","offers":[{"title":"PK (1)","offer_id":51111563591995,"sku":"HAH-22269-64-PK","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/HAH-22269-64.png?v=1784719186","url":"https:\/\/preiser.com\/products\/buffer-powder-pillows-ph-4-01-0-02-at-25-degrees-c-250-pk-hach-2226964","provider":"Preiser Scientific","version":"1.0","type":"link"}