Loc Thien Chemicals for the Paper & Packaging Industry —...
Chemicals for the Paper & Packaging Industry — NaOH pulp cooking, H₂O₂ bleaching, PAC (Polyaluminium Chloride) for Wastewater Treatment | Loc Thien Chemicals
The Vietnamese paper and packaging industry consumes hundreds of thousands of metric tons of industrial chemicals each year—from Caustic Soda for Kraft pulp cooking to environmentally friendly Hydrogen Peroxide bleaching (ECF/TCF), and PAC (Polyaluminium Chloride) coagulation for Wastewater Treatment compliant with QCVN 12-MT:2015/BTNMT. Loc Thien is a specialized supplier of paper industry chemicals, with warehouses in Ho Chi Minh City, Binh Duong, and Dong Nai, offering same-day delivery to industrial parks along with complete documentation including CO/CQ, CoA, MSDS, and fire safety certificates.
What Are Paper Industry Chemicals?
Paper and packaging chemicals consist of three main groups: (1) Kraft pulp cooking chemicals: NaOH (CAS 1310-73-2) and Na₂S to break down lignin at 155–175°C, under a pressure of 700–1000 kPa; (2) ECF/TCF bleaching chemicals: H₂O₂ (CAS 7722-84-1), which do not produce dioxins and achieve an ISO whiteness of ≥80%; (3) Wastewater Treatment chemicals: PAC (Polyaluminium Chloride) (CAS 1327-41-9) for coagulation of cellulose and lignin, meeting QCVN 12-MT:2015 Column A. Additionally, there is H₂SO₄ for pH adjustment, Na₂CO₃ for alkali regeneration, and Aluminium Sulfate Al₂(SO₄)₃.
NaOH — Kraft Pulp Cooking (CAS 1310-73-2)
NaOH + Na₂S produces white liquor that hydrolyzes 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; NaOH liquid 32% (1,000-liter IBC or 20-metric-ton tank); NaOH liquid 50% (to save on shipping costs). We provide a Certificate of Analysis (CoA) for each batch, a bilingual English-Vietnamese Material Safety Data Sheet (MSDS), and advice on the appropriate Active Alkali (AA%) ratio for the H-factor.
H₂O₂ — Chlorine-Free Paper Pulp Bleaching (CAS 7722-84-1)
H₂O₂ is an ECF/TCF bleaching solution recommended by the WHO and EU as a replacement for Cl₂. H₂O₂ does not produce chlorinated dioxins/furans (AOX)—a mandatory requirement for EU and Japanese brands. Mechanism: H₂O₂ → HO₂⁻ (perhydroxyl anion) at pH pH 1 0–11, oxidizes lignin chromophores → increases ISO whiteness from 50–60% to 80–90%. Operating conditions: 60–70°C, 2–3 hours, with MgSO₄ added as a stabilizer. Loc Thien supplies H₂O₂ in 27.5% and 50% industrial grades, accompanied by a Certificate of Analysis (CoA) (active oxygen %, Fe ppb, stability test).
PAC (Polyaluminium Chloride) — Coagulation for the Paper Industry (CAS 1327-41-9)
Paper mill wastewater has a COD of 800–2000 mg/L and SS of 500–1500 mg/L. PAC (Polyaluminium Chloride) with its Al₁₃ polycation neutralizes the negative charge of dissolved cellulose and lignin → through flocculation → rapid settling in 20–30 minutes. Dosage: 150–300 mg/L at pH 6.5–7.5: SS reduction of 85–95%, COD reduction of 40–60%. Combined with a biological reactor to meet 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, 1000L IBC or 250L drum.
QCVN 12-MT:2015 Standard & CoA/MSDS Documentation
Complete legal documentation for the factory and ISO 14001 audit: Certificate of Analysis for each batch (batch code, production date, expiration date); GHS-compliant MSDS/SDS with 16 sections in both English and Vietnamese; Purchase Order / Change Order for imported goods; Chemical Business License (Decree 113/2017/ND-CP); Fire Safety Inspection Certificate. Consultation on selecting the correct chemical dosages and processes to comply with QCVN 12-MT:2015/BTNMT.
Same-Day Delivery to Industrial Zones in Binh Duong and Dong Nai
3 strategic warehouses in Ho Chi Minh City – Binh Duong – Dong Nai: order by 10 a.m. → same-day afternoon delivery to VSIP 1 & 2, Amata, Nhon Trach, Long Thanh, and My Phuoc Industrial Parks. Specialized hazardous materials transport vehicles, MSDS provided with each shipment, and drivers trained in occupational safety and health. Capacities range from 200 kg to 20 metric tons per trip, with no strict minimum order quantity (MOQ). Trial orders available for new customers.
Contact us for quotes on paper and packaging chemicals: 0979 891 929 — technical support and quotes within 30 minutes.
Frequently Asked Questions — Paper & Packaging Industry Chemicals
What types of paper industry chemicals are used in each production stage? The paper industry uses three groups: (1) NaOH for Kraft pulp cooking (CAS 1310-73-2) at 155–175°C; (2) H₂O₂ for dioxin-free ECF/TCF bleaching (CAS 7722-84-1); (3) PAC for coagulation in the black liquor.
i (CAS 1327-41-9) complies with QCVN 12-MT:2015. There is also H₂SO₄ for pH adjustment, and Na₂CO₃ for alkali regeneration.NaOH is used in pulp cooking—what are the concentration and reaction conditions? NaOH (CAS 1310-73-2) is used in Kraft pulping at 155–175°C, under a pressure of 700–1000 kPa. Loc Thien supplies NaOH in 99% flakes and liquid form at 32–50%, accompanied by a Certificate of Analysis (CoA) and Material Safety Data Sheet (MSDS) for each batch.
H₂O₂ ECF/TCF pulp bleaching—what are the advantages over Chlorine? H₂O₂ (CAS 7722-84-1) does not produce dioxins/furans (AOX ≤ 0.1 mg/L), increases ISO whiteness by 80–90% at pH 10–11, 60–70°C. Supply H₂O₂ 27.5% and 50%.
How does PAC (Polyaluminium Chloride) perform Wastewater Treatment for the paper industry to meet QCVN 12-MT:2015? PAC (CAS 1327-41-9) performs Coagulation at pH 6.5–7.5. A dosage of 150–300 mg/L reduces SS by 85–95% and COD by 40–60%. Meets Column A of QCVN 12-MT:2015 (COD ≤75, TSS ≤50, AOX ≤0.1 mg/L).
What CoAs, MSDSs, and permits are required for paper industry chemicals? Required: CoA for each batch, 16-item GHS MSDS in English and Vietnamese, Certificate of Origin (CO/CQ), Permit under Decree 113/2017/NĐ-CP, and Fire Safety Certificate. Loc Thien has all the necessary documentation for ISO 14001 audit.
Looking to purchase paper and packaging chemicals for same-day delivery to industrial parks in Binh Duong and Dong Nai? Warehouses located in Ho Chi Minh City, Binh Duong, and Dong Nai. Order by 10 a.m. → Same-day afternoon delivery to VSIP 1 & 2, Amata, and Nhơn Trạch Industrial Zones. Hazardous material transport vehicles with MSDSs on board. Quantities: 200 kg – 20 metric tons. 0979 891 929.