Lime Chemicals ...    

 

Lime Chemicals Limited was established in the year 1970 as a private limited company. The core manufacturing competency of the company is the manufacture of "Percipitated and Coated Calcium Carbonate". 

As the process and production capacities grew, the company gathered enough strength to consolidate its position in the Indian market. And it began to drive the market and lead from the forefront. The first major milestone in the history of Lime Chemicals was in 1986, when the company turned public.

The results began to show early. In less than 10 years, Lime Chemicals Limited became the largest supplier of Calcium Carbonate to Oral Care Industry and is today a major vendor to Colgate Group & other dentifrice manufacturers. Recently the company's unit at Roha achieved another milestone, when it received the ISO 9001 : 2000 Certification.

Our annual turnover is 55 Crores and production capacity is 72,000 MT per annum.
We also planned our expansion 1,00,000 MT per annum.
 
Product Specifications...
Chemical Analysis Of Precipitated & Coated Grades Of Calcium Carbonate

COLOUR

WHITE

SOLUTION IN 5 N HCI

CLEAR

SOLUBLE ALKALI AS Na2O

0.15% Max.

PH

9.0-10.5

IRON (Fe) Max.

0.02%

MANGANESE (Mn) Max.

0.005%

FLUORIDE (F) Max.

TRACES

PHOSPHATE(PO4) Max.

0.08%

SULPHATE (SO4) Max.

0.2%

SILICA (SiO2)

0.07%

ALUMINIUM IRON PHOSPHATE & MATTER INSOLUBLE IN HCI IS-9/8/1985

0.5%

MAGNESIA (MgO)

0.5%

COPPER (Cu)

NEGLIGIBLE

LEAD (Pb)

LESSTHAN lOppm

ARSENIC (As)

LESSTHAN2ppm

CHLORIDES (CI)

TRACES

CALCIUM CARBONATE CONTENT

98.6% Min

SPECIFIC GRAVITY

2.7

LOSS ON DRYING AT 105 C

.5-.8%

HUNTERWHITENESS

97% Min.
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Typical Properties Of Precipitated Grades Of Calcium Carbonate
  Dentrifice Grades      
Grade LIMCAL-H  LIMCAL-L  LIMCAL-M TC-104 TC-106 TC-202

Bulk Density (gm/ml)

.55-.65

.70-.80

.85-1.0

.3-.4

.65-.85

.45-.53

Flow Point (ml/15gm)

18-20

12-18

10-14

24-28

12-24

-

Particle Size (Median dia in micron)

8.0

10.0

12.0

5.2

8-12

5

Specific Surface Diameter from Surface Area (uM)

.29

.39

.45

.26

.30-.45

.11

Surface Area by Nitrogen Absorption (M2/g)

4.70

2.0

1.35

6.5

1.5-4

18-22

DOP Absorption (gmllOOgm) Paste form

-

-

-

-

50-60

60-75

Fineness %
(through 45 micron Min.)

99.7

99.7

99.7

99.7

99.0

99.7

Viscosity (cps)

.

1000-7000

.

-

-

Clear

Brightness (Hunter)

100

100

100

98-100

98-100

98-100
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Typical Microbiological Standards Of Dentifrice And Pharma Grades

Parameters

Value

Total bacterial Counts (Aerobic)

< 1OO CFU/gm.

Total Fungal Counts (Aerobic)

< 500 CFU/gm.

Gram positive spore Forming Bacilli

< 500 CFU/gm.

Staphylococcus aureus

Negative to test

Gram Negative bacilli

Negative to test

These parameters can be met on specific/tailor made requirements from the customer.
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Typical Properties Of Coated Grades Of Calcium Carbonate

Grade

DICAL-S

TC-302

TC-303

DICAL-C

Apparent Density (gmlml)

.50 to. 75

.50 to.75

.50 to. 75

.55 to .60

Surface Area by Nitrogen Absorption (M Ig)

18-21

18-21

12-15

12-16

Specific Surface Diameter from Surface Area (micron)

0.12

0.12

0.12

0.16

DOP Absorption (gmllOOgm) Paste form

35-60

35-60

35-60

40-50

Coating (in percentage)

~ 3% Stearate

~ 1.5% Stearate

~ 1.0% Stearate

~ 1%Titanate (Min.)

Water Proofing %

98

98

95

98

Fineness
(Through 45 micron sieve Min.)

99.7

99.7

99.7

99.7

Brightness (Hunter)

95-100

95-100

85-95

95-100
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