{"id":48,"date":"2026-08-05T23:48:11","date_gmt":"2026-08-05T23:48:11","guid":{"rendered":"https:\/\/www.northstarmanagedit.com\/mcc3\/product\/hydrochloric-acid-31\/"},"modified":"2026-08-05T23:48:11","modified_gmt":"2026-08-05T23:48:11","slug":"hydrochloric-acid-31","status":"publish","type":"mc_product","link":"https:\/\/www.northstarmanagedit.com\/mcc3\/product\/hydrochloric-acid-31\/","title":{"rendered":"Hydrochloric Acid 31%"},"content":{"rendered":"<p>Thirty-one to thirty-three percent hydrochloric acid, commonly sold as 20 Baum\u00e9 muriatic acid.<\/p>\n<h2>Typical uses<\/h2>\n<ul>\n<li>Steel pickling and scale removal<\/li>\n<li>Concrete and masonry etching<\/li>\n<li>Ion exchange regeneration<\/li>\n<li>pH adjustment where sulfate is undesirable in the discharge<\/li>\n<li>Well and pipe acidising<\/li>\n<\/ul>\n<h2>Handling<\/h2>\n<p>Hydrochloric acid fumes noticeably. The vapour is corrosive and attacks nearby equipment, so storage areas need ventilation and any metal in the vicinity will corrode over time. Fume-tight storage and scrubbed vents are worth the cost.<\/p>\n<p>Use HDPE, FRP, or rubber-lined equipment. Do not use any bare metal \u2014 including stainless steel, which is attacked rapidly.<\/p>\n<h2>Compatibility<\/h2>\n<p>Violently incompatible with bases, and with hypochlorite \u2014 which liberates chlorine gas. Keep acid and bleach storage physically separated with their own containment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Thirty-one percent hydrochloric acid, 20 Baum\u00e9. Standard for pickling, descaling, and regeneration where chloride is acceptable in the effluent.<\/p>\n","protected":false},"featured_media":0,"menu_order":50,"template":"","meta":[],"mc_product_category":[2],"class_list":["post-48","mc_product","type-mc_product","status-publish","hentry","mc_product_category-acids"],"_links":{"self":[{"href":"https:\/\/www.northstarmanagedit.com\/mcc3\/wp-json\/wp\/v2\/mc_product\/48","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.northstarmanagedit.com\/mcc3\/wp-json\/wp\/v2\/mc_product"}],"about":[{"href":"https:\/\/www.northstarmanagedit.com\/mcc3\/wp-json\/wp\/v2\/types\/mc_product"}],"wp:attachment":[{"href":"https:\/\/www.northstarmanagedit.com\/mcc3\/wp-json\/wp\/v2\/media?parent=48"}],"wp:term":[{"taxonomy":"mc_product_category","embeddable":true,"href":"https:\/\/www.northstarmanagedit.com\/mcc3\/wp-json\/wp\/v2\/mc_product_category?post=48"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}