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Chemicals for Paper & Packaging Industry — NaOH for pulping, H₂O₂ for bleaching, PAC for wastewater treatment | Loc Thien

The paper & packaging industry in Vietnam consumes hundreds of thousands of tons of industrial chemicals annually — from Kraft pulping caustic soda, to environmentally friendly bleaching hydrogen peroxide (ECF/TCF), and PAC coagulant for wastewater treatment meeting QCVN 12-MT:2015/BTNMT. Loc Thien is a specialized supplier of paper industry chemicals, with warehouses in Ho Chi Minh City — Binh Duong Province — Dong Nai Province, offering same-day delivery to Industrial Zones (IZ) with full CO/CQ, CoA, MSDS, and fire safety documents.

What Are Paper Industry Chemicals?
Paper and packaging chemicals consist of three main groups: (1) Kraft pulping chemicals: NaOH (CAS 1310-73-2) and Na₂S break down lignin at 155–175°C, pressure 700–1000 kPa; (2) ECF/TCF bleaching chemicals: H₂O₂ (CAS 7722-84-1) does not produce dioxin, achieving ISO whiteness ≥80%; (3) Wastewater treatment chemicals: PAC (CAS 1327-41-9) coagulates cellulose and lignin, meeting QCVN 12-MT:2015 column A. Additionally, H₂SO₄ adjusts pH, Na₂CO₃ regenerates alkali, and aluminum sulfate Al₂(SO₄)₃ is used.

NaOH — Kraft Pulping (CAS 1310-73-2)
NaOH + Na₂S create white liquor hydrolyzing lignin-carbohydrate bonds in the Kraft process. Result: high-strength cellulose pulp, ready for bleaching. Specifications: NaOH flakes ≥99.0%, Na₂CO₃ ≤0.5%, 25 kg/bag, 1 MT pallet; 32% liquid NaOH (IBC 1000L or 20MT tank); 50% liquid NaOH (cost-effective transportation). Batch CoA, bilingual MSDS (English-Vietnamese), and Active Alkali (AA%) ratio consultation for H-factor optimization.

H₂O₂ — Chlorine-Free Pulp Bleaching (CAS 7722-84-1)
H₂O₂ is an ECF/TCF bleaching solution recommended by WHO & EU to replace Cl₂. H₂O₂ does not produce chlorinated dioxins/furans (AOX) — a requirement for EU and Japanese labels. Mechanism: H₂O₂ → HO₂⁻ (perhydroxyl anion) at pH 10–11, oxidizing lignin chromophores → increasing ISO whiteness from 50–60% to 80–90%. Operating conditions: 60–70°C, 2–3h, with MgSO₄ as a stabilizer. Loc Thien supplies 27.5% and 50% industrial-grade H₂O₂, with CoA (active oxygen %, Fe ppb, stability test).

PAC — Coagulation for Paper Industry Wastewater (CAS 1327-41-9)
Paper wastewater has COD 800–2000 mg/L, SS 500–1500 mg/L. PAC with Al₁₃ polycation neutralizes the negative charge of dissolved cellulose and lignin → forms flocs → rapid sedimentation in 20–30 minutes. Dosage 150–300 mg/L at pH 6.5–7.5: SS reduced by 85–95%, COD reduced by 40–60%. Combined with biological treatment, it meets QCVN 12-MT:2015 column A: COD ≤75 mg/L, TSS ≤50 mg/L, AOX ≤0.1 mg/L. PAC 10% and PAC 17% Al₂O₃, IBC 1000L or 250L drum.

QCVN 12-MT:2015 Standards & CoA/MSDS Certificates
Full legal documentation for factories and ISO 14001 audits: CoA per batch (batch code, production date, expiry); MSDS/SDS GHS 16 sections bilingual (English-Vietnamese); CO/CQ origin certificates; Chemical business license (Decree 113/2017/ND-CP); Fire safety inspection certificate. Consultation on proper chemical dosage and processes to meet QCVN 12-MT:2015/BTNMT.

Same-Day Delivery to Binh Duong, Dong Nai Industrial Zones
3 strategic warehouses in Ho Chi Minh City – Binh Duong Province – Dong Nai Province: order before 10 AM → same-day afternoon delivery to VSIP 1&2, Amata, Nhon Trach, Long Thanh, My Phuoc IZs. Dedicated hazardous goods vehicles, MSDS accompanying the vehicle, trained drivers. From 200 kg to 20 tons per trip, no strict MOQ. Support trial orders for new customers.

Contact for paper & packaging chemical quotes: 0979 891 929 — technical support & quotes within 30 minutes.

Frequently Asked Questions — Chemicals for Paper & Packaging Industry

What chemicals are used in the paper industry for each process? The paper industry uses three groups: (1) NaOH for Kraft pulping (CAS 1310-73-2) at 155–175°C; (2) H₂O₂ for ECF/TCF bleaching (CAS 7722-84-1) without dioxin formation; (3) PAC for wastewater coagulation (CAS 1327-41-9) meeting QCVN 12-MT:2015. Also, H₂SO₄ for pH adjustment, Na₂CO₃ for alkali regeneration.

NaOH for paper pulping — concentration and reaction conditions? NaOH (CAS 1310-73-2) is used for Kraft pulping at 155–175°C, pressure 700–1000 kPa. Loc Thien supplies 99% NaOH flakes and 32–50% liquid NaOH with batch CoA/MSDS.

H₂O₂ for ECF/TCF paper pulp bleaching — advantages over chlorine? H₂O₂ (CAS 7722-84-1) does not produce dioxins/furans (AOX ≤0.1 mg/L), increases ISO whiteness to 80–90% at pH 10–11, 60–70°C. Supplies 27.5% and 50% H₂O₂.

How does PAC treat paper industry wastewater to meet QCVN 12-MT:2015? PAC (CAS 1327-41-9) coagulates at pH 6.5–7.5. Dosage 150–300 mg/L reduces SS by 85–95%, COD by 40–60%. Meets column A QCVN 12-MT:2015 (COD ≤75, TSS ≤50, AOX ≤0.1 mg/L).

What CoA, MSDS, and permits are required for paper industry chemicals? Required: Batch CoA, GHS 16-section MSDS (English-Vietnamese), CO/CQ origin certificates, Decree 113/2017/ND-CP business license, fire safety inspection certificate. Loc Thien provides full ISO 14001 audit documentation.

Can paper & packaging chemicals be delivered to Binh Duong, Dong Nai IZs on the same day? Warehouses in Ho Chi Minh City, Binh Duong Province, Dong Nai Province. Order before 10 AM → same-day afternoon delivery to VSIP 1&2, Amata, Nhon Trach IZs. Hazardous goods vehicles, MSDS accompanying the vehicle. 200 kg – 20 tons. 0979 891 929.