Chemicals for the Paper & Pulp Industry
Paper and pulp manufacturing relies on specialty chemicals at every stage — from pulping and bleaching to sizing, filling, and coating. MITCHEM supplies hydrogen peroxide and sodium sulphite for TCF/ECF pulp bleaching, calcium carbonate and barium sulphate as paper fillers and coating pigments, aluminium sulphate for alum-rosin sizing, and sodium hypochlorite for biocide applications in paper machine white water.
Key Products6+
FunctionFiller, Bleach, Biocide, Sizing
GradesPapermaking & Tissue
SupplyBags & Bulk
Key Products for Paper & Pulp
Click any product for full specifications, available grades, and quote form.
Calcium Carbonate
CAS: 471-34-1 | HS: 28365000
CaCO₃ | 100.09 g/mol
Primary filler and coating pigment in alkaline papermaking — improves brightness, opacity, smoothness, and printability of coated and uncoated fine papers. Enables alkaline sizing with improved permanence.
Hydrogen Peroxide
CAS: 7722-84-1 | HS: 28470000
H₂O₂ | 34.01 g/mol
Environmentally preferred bleaching agent for mechanical and chemical pulp — primary bleach in TCF (totally chlorine-free) sequences for kraft and sulphite pulps, delivering high brightness with low AOX formation.
Sodium Sulphite
CAS: 7757-83-7 | HS: 28321000
Na₂SO₃ | 126.04 g/mol
Pulping chemical in sulphite process and oxygen scavenger in bleaching sequences — prevents back-yellowing of bleached pulp by scavenging residual oxygen and reducing peroxide decomposition.
Aluminium Sulphate
CAS: 10043-01-3 | HS: 28332200
Al₂(SO₄)₃·18H₂O | 342.15 g/mol
Sizing agent in acidic papermaking (alum-rosin sizing) — precipitates rosin onto fibres, improving water resistance of writing, printing, and packaging papers at low cost.
Sodium Hypochlorite
CAS: 7681-52-9 | HS: 28281090
NaOCl | 74.44 g/mol
Pulp bleaching agent in conventional ECF sequences and biocide for controlling slime-forming bacteria and algae in paper machine white water systems and chest agitators.
Barium Sulphate
CAS: 7727-43-7 | HS: 28332700
BaSO₄ | 233.39 g/mol
Specialty filler providing high brightness and X-ray opacity in security paper, bank note substrates, and premium coated papers where conventional fillers are insufficient.
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