Chemicals for the Paper & Pulp Industry
Paper and pulp manufacturing relies on chemicals for pulp bleaching, internal sizing, coating, and process water treatment. MITCHEM provides calcium hypochlorite for pulp bleaching, aluminium sulphate for acid sizing, PAC for process water treatment, and calcium stearate as a surface lubricant in coated paper grades.
Key Products6+
ProcessBleaching, Sizing, Coating, Water Treatment
ScaleIndustrial Bulk
ConsistencyBatch-Certified
Key Products for Paper & Pulp
Each product shown with its specific role in paper & pulp applications. Click any product for full specifications, grades, and quote form.
Calcium Hypochlorite
CAS: 7778-54-3 | HS: 28281000
Ca(ClO)₂ | 142.98 g/mol
Calcium Hypochlorite is used in the multi-stage bleaching sequence for Kraft and sulphite pulp — oxidising residual lignin to achieve high brightness targets for printing and writing paper grades.
Aluminium Sulphate
CAS: 10043-01-3 | HS: 28332200
Al₂(SO₄)₃ | 342.15 g/mol
Aluminium Sulphate is the traditional internal sizing agent in acid papermaking — precipitating rosin size onto cellulose fibres to render paper hydrophobic and resistant to water absorption.
Poly Aluminium Chloride (PAC)
CAS: 1327-41-9 | HS: 28273200
Alₙ(OH)ₘCl(3n-m) | ~319.4 g/mol
PAC is used in modern papermaking to replace alum at near-neutral pH (6.5–7.5), improving filler retention, drainage rate, and formation. Also serves as primary coagulant in paper mill white water treatment.
Calcium Stearate
CAS: 1592-23-0 | HS: 29157090
C₃₆H₇₀CaO₄ | 607.02 g/mol
In coated paper and paperboard, Calcium Stearate is a slip agent in coating formulations — improving runnability on calendering stacks and imparting the characteristic smooth surface of premium coated paper.
Sodium Hypochlorite
CAS: 7681-52-9 | HS: 28289000
NaOCl | 74.44 g/mol
NaOCl is used in paper mills for process water treatment, slime control in headbox and wire section, and bleaching sequences for mechanical pulp (groundwood, TMP).
Sodium Percarbonate (Coated)
CAS: 15630-89-4 | HS: 28369900
2Na₂CO₃·3H₂O₂ | 314.04 g/mol
Coated Sodium Percarbonate is used in paper and pulp operations as a chlorine-free bleaching stage — particularly suited to ECF (Elemental Chlorine-Free) and TCF (Totally Chlorine-Free) bleaching sequences for specialty paper and tissue grades.