{"product_id":"sodium-hydroxide-price-in-pakistan","title":"Sodium Hydroxide","description":"\u003cdiv style=\"max-width:100%;font-size:16px;line-height:1.55;color:#1f1f1f;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSodium Hydroxide, INCI name Sodium Hydroxide, CAS 1310-73-2, is an inorganic strong alkali used in cosmetic manufacturing for cold process soap making, hot process soap, and as a pH adjuster in professional formulations. Commonly referred to as caustic soda or lye, sodium hydroxide reacts with oils and butters through saponification to produce soap and glycerin, making it the foundational ingredient in hard bar soap production. In professional hair care, sodium hydroxide is used in controlled concentrations in chemical relaxer systems under strict regulatory limits. As a pH adjuster, it is incorporated at trace concentrations into cosmetic formulas such as vitamin C serums and specialty cleansers to achieve target alkalinity. The compound carries the molecular formula NaOH and is freely soluble in water, producing significant heat upon dissolution. Sodium hydroxide is a core cosmetic material for DIY soap makers, cosmetic chemistry students, and advanced formulators working with saponification or precision pH management. Rabibazaar supplies cosmetic-grade Sodium Hydroxide suitable for soap makers, professional formulators, cosmetic chemistry students, and beauty entrepreneurs across Pakistan.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eKey Features:\u003c\/p\u003e\n\u003cul style=\"margin:6px 0 10px;padding-left:22px;\"\u003e\n\u003cli style=\"margin:0 0 5px;line-height:1.5;\"\u003eHigh purity, reliable quality\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px;line-height:1.5;\"\u003eIdeal for cold \u0026amp; hot process soap making\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px;line-height:1.5;\"\u003eStrong pH adjuster for formulations\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px;line-height:1.5;\"\u003eFast dissolving in water\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px;line-height:1.5;\"\u003eSuitable for DIY \u0026amp; professional use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eCommon Uses:\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSoap making (essential ingredient for hard soaps)\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003epH adjustment in skincare formulations\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eCleaning formulations \u0026amp; industrial use\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSafety Guidelines:\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSodium Hydroxide is a highly corrosive chemical, so proper handling is extremely important:\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eAlways wear gloves \u0026amp; protective eyewear\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eAdd NaOH into water (never water into NaOH)\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eUse in a well-ventilated area\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eKeep away from children\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eAt Rabibazaar, we recommend beginners to follow proper formulation guidelines before using Sodium Hydroxide.\u003c\/p\u003e\n\u003chr style=\"border:0;border-top:1px solid #e3e3e3;margin:24px 0;\"\u003e\n\u003ch2 style=\"margin:0 0 12px;font-size:24px;line-height:1.3;\"\u003eInformation About Sodium Hydroxide\u003c\/h2\u003e\n\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e✅ Key Features\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e✦ Primary saponification agent for cold process and hot process hard bar soap — no substitute exists for this reaction\u003cbr\u003e\n✦ Fully consumed in saponification when correctly calculated — no free lye remains in properly formulated finished soap\u003cbr\u003e\n✦ Reacts with oils and butters to produce soap salts and naturally occurring glycerin as a co-product\u003cbr\u003e\n✦ Used as a trace pH adjuster in professional cosmetic formulas including vitamin C serums and specialty cleansers\u003cbr\u003e\n✦ Inorganic alkali with CAS 1310-73-2 — fully characterized, globally regulated, and cosmetic-grade verified\u003cbr\u003e\n✦ Permitted in professional hair relaxer systems at restricted concentrations per EU Cosmetics Regulation Annex III\u003cbr\u003e\n✦ Cosmetic-grade purity ensures minimal impurities critical for personal care and soap formulation consistency\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e🔬 Description\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSodium Hydroxide, commonly known as caustic soda or lye, is an inorganic strong base with the molecular formula NaOH. It has been used in soap production for centuries, with early forms of lye historically derived from wood ash leachate. Today, cosmetic-grade sodium hydroxide is a highly purified compound manufactured to tight specifications and used in modern soap making, professional hair care chemistry, and precision pH adjustment in cosmetic formulations worldwide.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eThe defining property of sodium hydroxide in cosmetics is saponification — a chemical reaction between NaOH and fatty acid triglycerides in oils and butters that produces soap salts and free glycerin. When calculated correctly using the saponification value of each oil and applied with a standard superfat of 5–8%, sodium hydroxide is entirely consumed in the reaction, leaving no residual alkali in the finished bar. Its extreme alkalinity also allows formulators to raise the pH of aqueous cosmetic systems with precision using very small quantities, making it indispensable in low-pH serum manufacturing and technical cosmetic formulation.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eRabibazaar supplies cosmetic-grade Sodium Hydroxide suitable for DIY soap makers, professional formulators, cosmetic chemistry students, and beauty entrepreneurs across Pakistan.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e📊 Technical Data\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eINCI Name             : Sodium Hydroxide\u003cbr\u003e\nChemical Name         : Sodium Hydroxide\u003cbr\u003e\nCAS Number            : 1310-73-2\u003cbr\u003e\nMolecular Formula     : NaOH\u003cbr\u003e\nAppearance            : White pellets, flakes, or granules\u003cbr\u003e\nOdor                  : Odorless\u003cbr\u003e\npH (1% solution)      : ~13 (highly alkaline)\u003cbr\u003e\nSolubility            : Freely soluble in water — dissolution is highly exothermic\u003cbr\u003e\nSpecific Gravity      : 2.13 g\/cm³ (solid)\u003cbr\u003e\nFlash Point           : Not Applicable — non-combustible solid\u003cbr\u003e\nHLB Value             : Not Applicable\u003cbr\u003e\nRecommended Use Level : As required per saponification calculation; minimum effective quantity as pH adjuster\u003cbr\u003e\nType                  : Inorganic alkali \/ Strong base\u003cbr\u003e\nShelf Life            : 2 years in sealed, moisture-proof container\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e🧪 Recommended Usage\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSoap Making (Cold Process, Hot Process)\u003cbr\u003e\nRating: ★★★★★\u003cbr\u003e\nSodium Hydroxide is the essential saponification agent for hard bar soap production — no functional substitute exists in CP or HP formulation. Always use a lye calculator to determine exact NaOH quantity based on the SAP values of each individual oil in your blend.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003epH Adjustment (Serums, Cleansers, Specialty Formulas)\u003cbr\u003e\nRating: ★★★★☆\u003cbr\u003e\nUsed at very low concentrations to raise pH in aqueous cosmetic formulas such as vitamin C serums, low-pH treatments, and syndet cleansers. Prepare as a 10–20% aqueous solution first for controlled, incremental, and precise pH addition.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eProfessional Hair Relaxers\u003cbr\u003e\nRating: ★★★☆☆\u003cbr\u003e\nPermitted in professional hair straightening and relaxer systems at restricted concentrations per EU Annex III. Requires professional training, precise application timing, and strict neutralization protocol — not suitable for home use at relaxer concentrations.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eLiquid Soap and Syndet Bars\u003cbr\u003e\nRating: ★★★☆☆\u003cbr\u003e\nNaOH produces firm hard bar soaps; for liquid soap or paste, Potassium Hydroxide is the preferred alkali. NaOH can be blended with KOH in calculated ratios to produce semi-solid or cream soap textures.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eSpecialty Cosmetic and Industrial Cleaning Applications\u003cbr\u003e\nRating: ★★☆☆☆\u003cbr\u003e\nUsed in some professional cosmetic equipment sterilization and specialty cleaning formulas. Not suitable as a direct ingredient in leave-on consumer cosmetic products under any circumstance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e💡 Pro Tip\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eWhen I formulate with sodium hydroxide for cold process soap, the single most important discipline is calculating lye quantity from the individual SAP value of every oil in the blend — never using a blended average. Even a modest excess of free lye produces a harsh, zapping bar that will irritate sensitive skin. I superfat every CP formula at 5–8% as standard practice, deliberately reducing NaOH slightly below full saponification to build in a safety margin of unsaponified conditioning oils. This margin also compensates for minor scale inaccuracies during home batch production.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eADVANCED TIP: When using sodium hydroxide as a pH adjuster in L-Ascorbic Acid serums, prepare a 10% NaOH aqueous solution and add it dropwise to the serum base while monitoring continuously with a calibrated pH meter. Target a final pH of 2.8–3.2 for maximum ascorbic acid stability and transdermal penetration. Add in increments of 2–3 drops, wait 30 seconds for equilibration, then re-read. This prevents localized over-alkalization at the point of addition, which degrades vitamin C concentration irreversibly within the formula.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e👩‍🔬 Skin Type Suitability\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eNormal Skin    : ★★★★★ — Properly superfatted NaOH soap at 5–8% superfat cleanses normal skin effectively without stripping or barrier disruption.\u003cbr\u003e\nDry Skin       : ★★★☆☆ — High-pH NaOH soap can compromise the moisture barrier of dry skin; oil-rich formulas with generous superfatting are essential.\u003cbr\u003e\nOily Skin      : ★★★★☆ — NaOH-based soap delivers effective degreasing cleansing that suits oily skin well when superfatted at standard levels.\u003cbr\u003e\nCombination    : ★★★★☆ — Balanced cold process soap with a well-designed oil profile suits combination skin adequately with standard superfatting.\u003cbr\u003e\nSensitive Skin : ★★☆☆☆ — Alkaline soap can disturb the acid mantle and microbiome of sensitive skin; pH-balanced syndet bars are strongly preferred.\u003cbr\u003e\nMature Skin    : ★★★☆☆ — High-pH soap can accelerate barrier compromise in aging skin; extra-rich superfatted formulas with conditioning butters are critical.\u003cbr\u003e\nAcne-Prone     : ★★★☆☆ — Alkaline NaOH soap may over-strip sebum on acne-prone skin, disrupting barrier balance; pH-adjusted cleansers around 5.5 are preferable.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e🧴 Formulation Ideas\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e\u003cstrong\u003eCONCEPT 1:\u003c\/strong\u003e Classic Olive and Coconut Hard Bar Soap\u003cbr\u003e\nUsage Level    : Per saponification calculation — typically 12–14% of total oil weight\u003cbr\u003e\nKey Ingredients: Olive Oil, Coconut Oil, Distilled Water, Sodium Hydroxide\u003cbr\u003e\nResult         : A firm, long-lasting bar soap with balanced lather, gentle cleansing, and naturally retained glycerin from the saponification reaction.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e\u003cstrong\u003eCONCEPT 2:\u003c\/strong\u003e pH-Adjusted Vitamin C Brightening Serum\u003cbr\u003e\nUsage Level    : 0.1–0.5% (as a pre-diluted 10% aqueous solution, added to achieve target pH 3.0)\u003cbr\u003e\nKey Ingredients: L-Ascorbic Acid 15%, Ferulic Acid 0.5%, Propylene Glycol, Distilled Water, Sodium Hydroxide\u003cbr\u003e\nResult         : A stable, skin-penetrating vitamin C serum optimized at low pH for maximum antioxidant efficacy and collagen synthesis stimulation.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e\u003cstrong\u003eCONCEPT 3:\u003c\/strong\u003e Conditioning Solid Shampoo Bar\u003cbr\u003e\nUsage Level    : Per saponification calculation for the chosen oil blend\u003cbr\u003e\nKey Ingredients: Castor Oil, Coconut Oil, Sweet Almond Oil, Sodium Hydroxide, Panthenol (added post-trace)\u003cbr\u003e\nResult         : A conditioning solid shampoo bar with stable lather and scalp-cleansing performance suited for normal to oily hair types.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e💧 Safety and Regulatory:\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eINCI Declared    : Yes — all cosmetic ingredients must be declared; in fully saponified CP soap, NaOH may not appear if entirely consumed in reaction\u003cbr\u003e\nEU Cosmetics Reg : Restricted — Annex III Entry 15; permitted as pH adjuster at minimum effective quantity; max 4.5% in professional hair relaxers, max 2% in consumer relaxers\u003cbr\u003e\nRinse-Off Limit  : No fixed percentage for pH adjuster use — sufficient quantity to achieve required pH only\u003cbr\u003e\nLeave-On Limit   : Not recommended as a leave-on ingredient in any finished cosmetic product\u003cbr\u003e\nAllergen Alert   : No — not a skin allergen; classified as a severe chemical irritant and corrosive at raw material stage\u003cbr\u003e\nSkin Safety      : Raw material is highly corrosive — never apply undiluted to skin; finished products must be formulated to safe pH before use\u003cbr\u003e\nEye Area Use     : Avoid — raw sodium hydroxide causes immediate and severe irreversible ocular damage\u003cbr\u003e\nIngestion        : Not for internal use\u003cbr\u003e\nPregnancy Use    : Consult physician — raw material handling during pregnancy should be minimized and fully protective gear used\u003cbr\u003e\nChild Safety     : Keep away from children entirely; not for use in products intended for children unless fully saponified with finished product safety tested\u003cbr\u003e\nVentilation      : Required when dissolving NaOH in water — significant heat and alkaline fumes are generated during dissolution\u003cbr\u003e\nStorage          : Cool, dry place in sealed airtight container — highly hygroscopic; absorbs atmospheric moisture and CO₂, degrading purity over time\u003cbr\u003e\nContainer        : HDPE or glass only — never use aluminum, zinc, tin, galvanized, or any reactive metal container\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e⚠️ WARNING: Sodium Hydroxide is a highly corrosive strong alkali classified GHS Category 1 for skin and eye damage. Undiluted contact causes immediate chemical burns requiring emergency flushing. Always wear chemical-resistant gloves, sealed safety goggles, and a protective apron. Never add water to lye — always add NaOH slowly to water with stirring. Inhalation of dissolution fumes can cause respiratory tract irritation. Store sealed away from acids, reactive metals, and all moisture sources. Keep out of reach of children at all times with no exception.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003eStability and Compatibility\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eWorking pH Range   : 12–14 (raw material); used to raise finished formula pH to target range\u003cbr\u003e\nHeat Stability     : Stable as solid; dissolution in water generates significant exothermic heat — solution temperature can exceed 80°C during mixing\u003cbr\u003e\nFreeze-Thaw Stable : Yes (stable as solid; high-concentration aqueous solutions may crystallize at low temperatures)\u003cbr\u003e\nEmulsion Type      : Not Applicable — not an emulsifier; functions as saponification agent or pH adjuster only\u003cbr\u003e\nEmulsification Phase: Cold or Hot — always add prepared, cooled NaOH solution to formulation; never add raw solid directly\u003cbr\u003e\nCompatible With    : Oils and butters for saponification, distilled water, glycerin, propylene glycol, most cosmetic bases at trace pH-adjusting levels\u003cbr\u003e\nIncompatible With  : Acids at any concentration (violent exothermic neutralization), aluminum and reactive metals, high-ester concentrations under prolonged alkaline conditions\u003cbr\u003e\nOxidation Risk     : Low — stable inorganic compound; no oxidation sensitivity\u003cbr\u003e\nDiscoloration Risk : None — colorless in solution; note that some oils naturally discolor during saponification, which is unrelated to NaOH purity\u003cbr\u003e\nFormulation Notes  : Always dissolve NaOH in water slowly with continuous stirring — never reverse this order. For CP soap, allow lye solution to cool to 35–45°C before combining with oils. For pH adjustment in cosmetics, use a pre-diluted 10–20% solution and add in small increments with pH monitoring.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003e❓ FAQs\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eQ: Is sodium hydroxide safe to use in homemade soap?\u003cbr\u003e\nA: Yes, when used at the correctly calculated quantity, sodium hydroxide is entirely consumed during saponification and does not remain in the finished soap. Always use a reliable lye calculator, wear full protective gear during handling, and perform a zap test before use.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eQ: How do I calculate the correct amount of sodium hydroxide for my soap recipe?\u003cbr\u003e\nA: Each oil and butter has a unique saponification value indicating how many grams of NaOH are required to saponify one gram of that fat. Input your oil weights and types into a lye calculator, set a 5–8% superfat, and use the resulting NaOH figure precisely.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eQ: Can sodium hydroxide be used in skincare products like serums or creams?\u003cbr\u003e\nA: Yes, but only as a trace pH adjuster, always as a pre-diluted 10–20% aqueous solution added in small increments. It neutralizes with formula acids to form salts and is not present in its raw form in any properly manufactured finished cosmetic product.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eQ: What happens if I use too much sodium hydroxide in a soap batch?\u003cbr\u003e\nA: Excess free lye produces a harsh bar that will zap (sting) the tongue on testing and cause skin irritation in use. The batch can be rescued by rebatching with additional unsaponified oils calculated to neutralize the free alkali and restore a proper superfat level.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eQ: How does sodium hydroxide compare to potassium hydroxide for soap making?\u003cbr\u003e\nA: Sodium Hydroxide produces hard, firm bar soaps through complete saponification of solid and liquid oils, while Potassium Hydroxide produces soft paste or liquid soaps and requires a different SAP value calculation. For a hard pressed bar, NaOH is the correct choice; for liquid soap concentrate or shampoo base, KOH is preferred. Blending both in calculated ratios produces semi-solid cream soap textures.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #dedede;border-radius:6px;background:#ffffff;margin:0 0 10px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:13px 16px;font-weight:600;line-height:1.4;background:#f7f7f7;\"\u003eProfessional Guidance\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px 5px;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e\u003cstrong\u003eProduct evaluation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eReview the specifications, supplied grade, intended use and compatibility of Sodium Hydroxide before ordering for production. Test a small quantity in the actual application and document the result before scaling.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e\u003cstrong\u003eQuality control\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eInspect the received batch for expected appearance, odor, texture, packaging condition and labeling. Keep supplier and batch records, use accurate measurements, and retain a reference sample when the material is used commercially.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003e\u003cstrong\u003eStorage and responsible use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 9px;line-height:1.55;\"\u003eStore tightly closed in a clean, cool and dry location away from direct sunlight. Follow the current supplier instructions and all safety, labeling and regulatory requirements that apply to the intended finished product.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Rabibazaar","offers":[{"title":"100gm","offer_id":44663130914919,"sku":null,"price":260.0,"currency_code":"PKR","in_stock":true},{"title":"500gm","offer_id":44663130947687,"sku":null,"price":1200.0,"currency_code":"PKR","in_stock":true},{"title":"Kg.","offer_id":44663130980455,"sku":null,"price":2000.0,"currency_code":"PKR","in_stock":true}],"url":"https:\/\/rabibazaar.pk\/products\/sodium-hydroxide-price-in-pakistan","provider":"Rabibazaar","version":"1.0","type":"link"}