{"product_id":"sodium-dihydrogen-phosphate-dihydrate-t879-t879","title":"Sodium dihydrogen phosphate dihydrate, min. 99 %, p.a., 500 g, plastic","description":"\u003cp\u003eSodium dihydrogen phosphate dihydrate is an analytical-grade monobasic phosphate salt with a minimum purity of 99 % (p.a.). It is identified by CAS number 13472-35-0 and EG nr. 231-449-2, has the empirical formula NaH₂PO₄ · 2 H₂O, a molar mass of 156,01 g\/mol, and a density of 1,91 g\/cm³. The dihydrate is widely applied in buffer preparation, pH control, and reagent work for histology, microscopy, and general laboratory chemistry. The material from manufacturer Carl ROTH suits life-science and analytical settings where high-purity phosphate salts are preferred. Together with dibasic phosphates it enables classic phosphate buffer systems covering ranges used in staining protocols, sample stabilisation, and aqueous media. Inclusion of two water molecules in the crystal lattice is reflected in the formula weight, supporting precise molar calculations. This p.a. grade is intended for laboratories that need reliable monobasic sodium phosphate dihydrate for reproducible buffering and related inorganic reagent applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-fr\/collections\/microscopy-accessories\"\u003eMicroscopy accessories\u003c\/a\u003e, in \u003ca href=\"\/en-fr\/collections\/microscopy-and-histology\"\u003eMicroscopy \u0026amp; histology\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAssay (acidim.): ≥99,0 %\u003c\/li\u003e\n\u003cli\u003epH value (5 % in H2O): 4,2-4,5\u003c\/li\u003e\n\u003cli\u003eIn H2O insoluble matter: ≤0,005 %\u003c\/li\u003e\n\u003cli\u003eTotal nitrogen (as N): ≤0,001 %\u003c\/li\u003e\n\u003cli\u003eChloride (Cl): ≤0,0005 %\u003c\/li\u003e\n\u003cli\u003eSulphate (SO4): ≤0,003 %\u003c\/li\u003e\n\u003cli\u003eArsenic (As): ≤0,00005 %\u003c\/li\u003e\n\u003cli\u003eLead (Pb): ≤0,0002 %\u003c\/li\u003e\n\u003cli\u003eCalcium (Ca): ≤0,005 %\u003c\/li\u003e\n\u003cli\u003eIron (Fe): ≤0,0005 %\u003c\/li\u003e\n\u003cli\u003eCAS number: 13472-35-0\u003c\/li\u003e\n\u003cli\u003ePack sizes: 500 g, 1 kg, 2.5 kg, 25 kg\u003c\/li\u003e\n\u003cli\u003eEG nr.: 231-449-2\u003c\/li\u003e\n\u003cli\u003ePurity: min. 99 %\u003c\/li\u003e\n\u003cli\u003eMolar mass: 156,01 g\/mol\u003c\/li\u003e\n\u003cli class=\"lx-tis-li\"\u003eTechnical Information Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/api.carlroth.com\/medias\/SPEZ-T879-EN.pdf?context=bWFzdGVyfHNwZWNpZmljYXRpb25zfDEwNjIyOXxhcHBsaWNhdGlvbi9wZGZ8YUdFNUwyaGpOeTg1TWpVMU1ERXlOVFkxTURJeUwxTlFSVnBmVkRnM09WOUZUaTV3WkdZfGVmZDA5YTVhZjgyODU4ZTFiOWI2ZmIyZjBlOGI1NTE1OGNlNzlkYjVhNTMzMjM4YmVhNjNlNjljZmY4NTA2NDA\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline;vertical-align:middle\" title=\"Technical sheet PDF\" aria-label=\"Technical sheet PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli class=\"lx-tis-li\"\u003eSafety Data Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/api.carlroth.com\/medias\/SDB-T879-DE-EN.pdf?context=bWFzdGVyfHNlY3VyaXR5RGF0YXNoZWV0c3wyNDI0MDV8YXBwbGljYXRpb24vcGRmfGFHSXdMMmcyWlM4NU1qQTJPVEF5TVRZeE5ETTRMMU5FUWw5VU9EYzVYMFJGWDBWT0xuQmtaZ3w3MzJkOGI2NjgzYmViMGIwMzc0ODZmYWVmZDY4OGVjOTFmMTlkM2RiMzc5MmU5NWU2MjQ3YzNkNTkwM2E4ZGRh\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline;vertical-align:middle\" title=\"SDS PDF\" aria-label=\"SDS PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"500 g \/ 1 piece","offer_id":56186342932812,"sku":"T879.1","price":41.4,"currency_code":"EUR","in_stock":true},{"title":"500 g \/ 6+ pieces","offer_id":56186342965580,"sku":"T879.1","price":39.33,"currency_code":"EUR","in_stock":true},{"title":"500 g \/ 24+ pieces","offer_id":56186342998348,"sku":"T879.1","price":37.26,"currency_code":"EUR","in_stock":true},{"title":"1 kg \/ 1 piece","offer_id":56186343031116,"sku":"T879.2","price":67.65,"currency_code":"EUR","in_stock":true},{"title":"1 kg \/ 6+ pieces","offer_id":56186343063884,"sku":"T879.2","price":67.65,"currency_code":"EUR","in_stock":true},{"title":"1 kg \/ 24+ pieces","offer_id":56186343096652,"sku":"T879.2","price":67.65,"currency_code":"EUR","in_stock":true},{"title":"2.5 kg \/ 1 piece","offer_id":56186343129420,"sku":"T879.3","price":155.9,"currency_code":"EUR","in_stock":true},{"title":"2.5 kg \/ 6+ pieces","offer_id":56186343162188,"sku":"T879.3","price":148.11,"currency_code":"EUR","in_stock":true},{"title":"2.5 kg \/ 24+ pieces","offer_id":56186343194956,"sku":"T879.3","price":140.31,"currency_code":"EUR","in_stock":true},{"title":"25 kg \/ 1 piece","offer_id":56186343227724,"sku":"T879.5","price":1343.75,"currency_code":"EUR","in_stock":true},{"title":"25 kg \/ 6+ pieces","offer_id":56186343260492,"sku":"T879.5","price":1276.56,"currency_code":"EUR","in_stock":true},{"title":"25 kg \/ 24+ pieces","offer_id":56186343293260,"sku":"T879.5","price":1209.38,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/Gruppe-Salze-01-1000Wx1000H_3a822b23-fb45-4c24-8ad7-3542c3d1d2c4.jpg?v=1766494620","url":"https:\/\/www.luminixhealth.com\/en-fr\/products\/sodium-dihydrogen-phosphate-dihydrate-t879-t879","provider":"Luminix Health","version":"1.0","type":"link"}