PRODUCTS

I. SODIUM HYDROSULPHITE

TCP Limited is one of the leading manufacturers of Pure Sodium Hydrosulphite (popularly known as Hydros) in India. We adopt a unique process for the manufacture of Sodium Hydrosulphite, known as 'Sodium Formate Process', as against the conventional method of Zinc or Amalgam Process. The advantage of Sodium Formate Process is that the end product does not contain even traces of Zinc Iron or Mercury. TCP has collaboration with M/s Mitsubishi Corporation of Japan, who have supplied both the imported equipment and the process know how for the plant. This is the only plant in India and among the five in the world, using this unique. 'Sodium Formate Process'.

CHEMICAL STANDARD:

TCP Sodium Hydrosulphite conforms to ISI Standard in purity - 84-88%. TCP also manufacture Sodium Hydrosulphite of higher purity. Quality system of TCP's process is as per ISO 9001.

APPLICATIONS:

Textile: A Reducing Agent, Dyeing Auxiliary in Vat Dyeing, in 'Reduction Clearing' of Disperse Dyes and in the 'Stripping' of direct colour and as a reduction Bleaching Agent for wool, nylon and cotton.
Food:
As a preservative.
Sugar/Jaggery:
For purification as a Bleaching Agent in the removal of organic and other impurities, thereby imparting attractive colour and sweetness to the end product. Jaggery produced by hydros will not become black and will not become semi solid on long storage.
Pharmaceutical:
Extensively used in reducing reaction and as a Bleaching Agent in the Manufacture of certain Antibiotics and Analgesics.
Paper:
Used as a Bleaching Agent in Paper and Pulp Industry, for bleaching of mechanised pulps, single stage or for split bleaching.
Clay:
Hydrosulphite bleaching of clay removes of iron impurities and allows clay to be bleached to perfect whiteness. Sodium Hydrosulphite transforms trivalent iron to bivalent which, on subsequent acid treatment, dissolves and removes iron from the clay.
Vat Dyes:
Hydrosulphite is used in the manufacture of Vat Dyes.
Soap:
Hydrosulphite is used in the bleaching of Crude Soap, particularly, in the manufacture of Washing Soaps.
Tanning of Leather:
Used as a 'Reducing agent' in the preparation of Chrome Tanned Leather'. It is also used as a 'Bleaching Agent' in the manufacture of 'Vegetable Tanned Leather'.

LIST OF IMPORTANT INDUSTRIAL SECTORS

TEXTILE INDUSTRY

PAPER INDUSTRY

PHARMACEUTICAL INDUSTRY

CLAY INDUSTRY


II. LIQUID SULPHUR DI-OXIDE


Liquid Sulphur Dioxide is used in (Refineries for Kerosene Refining.) Lab Chemicals manufacturing, Paper bleaching, Rayon pulp Bleaching. Leather chemical manufacturing etc. It is being supplied in cylinder tonners.

III. SODIUM FORMALDEHYDE SULPHOXYLATE - PRODUCT DATA - TANGOLITE

Nomenclature:
Sodium Formaldehyde Sulphoxylate

Assay as NaHSO2, CH2O, 2H2O-97% to 102%
Description:
White lumps - chips
Sodium Formaldehyde Bisulphite - 4.0% max.
(NaHSO3, CH2O, H2O)
Composition:
NaHSO2, CH2O, 2H2O

Sodium Sulphite (Na2SO3)-3.0% max.
pH of 1% Soln - 9.0 to 10.0


TYPICAL PROPERTIES

Odour :   Odourless Deteriorated material will carry a strong smell of garlic.
Solubility :   Soluble in water at room temperature with clear solution and on long standing Becomes      turbid.
Shelf life :   Min. 6 months from the date of packing if stored in unopened airtight container
Packing :   50 kgs. Drum Packing and 25 kgs Cartoon Packing
Uses :   Discharge agent for cotton printing


IV. ZINC SULPHOXYLATE FORMALDEHYDE - TANGOLIN


TYPICAL PROPERTIES

Formula
:
Zn(HSO3.CH2O)2
Assay
:
95 1%
Physical Appearance
:
White Powder
Composition
:
Zinc Bisulphite Formaldehyde 3% maximum
Zinc Sulphite 3% maximum
PH of 1% solution 4 to 4.5
Packing
:
25 kg. M.S.Drum
Shelf Life
:
6 months from the date of packing, if stored in air tight container.
Uses
:
Discharge Agent for Polyester printing

V. ZINC HYDROXIDE


TYPICAL PROPERTIES

Formula
:
Zn(OH)2
Assay as Zinc
:
68%
Packing
:
50 kg. used Polythene Bags
Physical Appearance
:
Grey Colour
Uses : For manufacturing Zinc Oxide which has wide application in Tyre and Paint Industry

 



REGD.OFFICE:"TCP LIMITED " SAPTHAGIRI BHAVAN New No. 4, Old No. 10, KARPAGAMBAL NAGAR,
MYLAPORE,CHENNAI - 600 004,TAMIL NADU,INDIA.
Phone : 24991518, 24991289     Email- chem@tcpindia.com