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Çeþitli Malzemelerin Dielektrik Sabiti ve Bunlarýn Radar Seviye Ölçümünde Kullanýmý

Radar seviye ölçüm teknolojisi, temassýz seviye teknolojileri içerisinde yaygýnlaþmaya devam ederken radar seviyeyi oluþturan anten teknolojisi de hergün yenilenerek geliþmektedir. Bu tip ölçüm teknolojisi kullanýlýrken uygun anten özelliklerini belirleyebilmek için; ölçülecek katý, sývý veya gaz malzemenin dielektrik sabiti bilgisine ihtiyaç duyarýz.

Bu yazýmýzda, USKON olarak çeþitli firmalardan, sahadan ve arþivlerden edindiðimiz bir çok malzemenin dielektrik sabiti bilgisine ulaþabileceksiniz. Birçok malzemenin deðerlerinin doðruluðunu, çok deðiþken koþullar gözardý edilemeyeceði için garanti edemesekte, birçoðu baþvuru niteliðindedir. Riskli veya yüksek güvenirlilik hassasiyeti gerekli olduðunda, ilgili malzeme için standartlara uygun olarak sertifikalý laboratuarlarda test ve ölçüm yapýlmalýdýr. Dielektrik katsayýsý/sabiti (Dc) her olasý çalýþma þartý altýnda ölçülebilir ve ancak böylelikle gerçek sonuçlar öngörebilir olur.

Uyarýlar:

• Sadece isim beznerliði veya anlamdaþ diye, bilinmeyen bir dielektrik sabiti için o deðeri esas almayýnýz. 
• “Tanecikli Katý” veya “Toz Halindeki Katý” malzemelerin herzaman ayný büyüklüklerde olmayacaðýný unutmayýnýz. Bunlar, uygulamacýlarýn o anki koþullar altýndaki malzemeleri isimlendirmeleriyle yaptýklarý genellemelerdir.

Saha Tanýmlamalarý

• Medya(Akýþkan)     - Prosese konu olan malzeme
• Dc               - Belirlenen þartlar altýndaki malzemenin Dielektrik Sabiti(Dielectric Constant)
• Sýcaklýk (F)       - Fahrenheit cinsinden sýcaklýk
• Sýcaklýk (C)       - Celcius cinsinden sýcaklýk
• Hal        - Proses malzemesinin durumu ve/veya formu

Malzeme Halleri/Fazlarý

S - Sývý
K - Katý
KT - Toz Haldeki Katý
KG - Granül Haldeki Katý
G - Gaz

Seviye Ölçümünde Dielektrik Sabiti (Dc) Kullanýmý

Sývýlarýn Seviyelerinin Ölçümü:

Bir malzemenin Dc si temel olarak, boþluða göre oranlanýr. Bu gerekli radyo frekans enerji miktarýný da bir oran cinsinden ortaya çýkarýr. Örnek vermek gerekirse; saf su (Dc=80.0) 80 sefer kadar geçer. Bir baþka örnekte, yakýt (Dc=2.1) dir, yani 2,1 kadar geçer. 

Bir sývý/sývý ölçümü; malzemelerden biri iletken (örneðin; içme suyu, asit, kostik vb.) ve diðeri de iletken-deðil ise (örneðin; motor yaðý, gres, anilin vb.) daha güvenilir ölçülür. Ýyi bir hassasiyet için, her malzemenin iletkenlik sabitini korumalýdýr.


Katý Seviyelerinin Ölçümü:

Katýlardaki Dc de ayný sývýlardaki gibi tanýmlanmýþtýr. Fakat, katýlarda toz veya granil halde bulunduklarýndan partiküller arasý boþluklarý dolduran gaz mevcuttur.(Dc gaz = 1,0)

Gerçek Dc = (Katýnýn Dc’ si – 1,0)(Genel Yoðunluk / Katýnýn Yoðunluðu) + 1,0    olarak hesaplanýr.

AKIÞKAN

Dc

Sýcaklýk(F)

Hal / Faz

ABS ( PLASTIC)

1.9

72

KG

ABS RESIN

2.4

75

KT

ACENAPHTHENE

3

70

S

ACETAL

3.6

70

S

ACETAL DOXIME

3.4

68

S

ACETALDEHYDE

22.2

50

S

ACETALDEHYDE

21.8

41

S

ACETALDEHYDE OXIME

3

73.4

S

ACETAMIDE

4.1

60

S

ACETAMIDE

4

75

K

ACETANILIDE

2.9

71

S

ACETANILIDE

2.9

75

K

ACETATE

1.3

75

KG

ACETIC ACID

6.2

68

S

ACETIC ACID

4.1

36

K

ACETIC ACID

6.6

160

S

ACETIC ANHYDRIDE

20

68

S

ACETONE

20.7

77

S

ACETONE

17.7

127

S

ACETONE

21.4

71

S

ACETONE

18.7

122

S

ACETONE (1.0159)

1

32

G

ACETONITRILE

38.8

68

S

ACETONITRILE

37.5

70

S

ACETOPHENONE

18.3

68

S

ACETOPHENONE

17.3

75

S

ACETOXIME

3

75

S

ACETYL ACETONE

23.1

68

S

ACETYL BROMIDE

16.5

68

S

ACETYL CHLORIDE

15.8

68

S

ACETYLENE (1.0217)

1

32

G

ACETYMETHLY HEXYL KETONE

27.9

66

S

ACRYLIC (PLASTIC)

1.9

75

KG

ACRYLIC RESIN

2.7

75

KT

AEROSIL (1.044)(INSULATION)

1

75

KG

AIR (DRY) (1.0005)

1

68

G

ALCOX 600

4.1

130

S

ALIPHATIC AMINE

7.2

195

S

ALKYD

3.2

75

S

ALLYL ALCOHOL

21

70

S

ALLYL ALCOHOL

22

58

S

ALLYL BROMIDE

7

66

S

ALLYL CHLORIDE

8.2

68

S

ALLYL IODIDE

6.1

66

S

ALLYL ISOTHIOCYANATE

17.5

64

S

ALLYL RESIN (CAST)

3.6

75

K

ALUMINA

4.5

75

K

ALUMINA

2.5

75

KG

ALUMINA HYDRATE

11.5

75

K

ALUMINUM BROMIDE

3.4

212

S

ALUMINUM CHLORIDE

2.7

75

S

ALUMINUM DIOXIDE

2.2

75

S

ALUMINUM HYDROXIDE

5.4

75

K

ALUMINUM OLEATE

2.4

68

S

ALUMINUM OXIDE

2

75

KG

ALUMINUM PHOSPHATE

6.1

75

K

ALUMINUM THIOCYANATE

2.6

75

KG

ALUMINUM TRICHLORIDE

5.3

75

K

AMHYDRITE

3.4

75

KG

AMINOX

2.4

275

S

AMLMERCAPTAN

4.7

68

S

AMLY ACETATE

5

68

S

AMLY ALCOHOL

35.5

-180

S

AMLY ALCOHOL

11.2

140

S

AMLY BENZOATE

5.1

68

S

AMLY BROMIDE

6.3

50

S

AMLY CHLORIDE

6.6

52

S

AMLY ETHER

3.1

60

S

AMLY FORMATE

5.7

66

S

AMLY IODIDE

6.9

62

S

AMLY NITRATE

9.1

62

S

AMLY THIOCYANATE

17.4

69

S

AMMONIA

25

-104

S

AMMONIA

22.4

-27

S

AMMONIA

4.1

75

S

AMMONIA

22

-30

S

AMMONIA

15.5

68

S

AMMONIA

16.9

76

S

AMMONIA (1.0072)

1

32

G

AMMONIUM BROMIDE

7.1

75

K

AMMONIUM CHLORIDE

7

75

K

AMONIA PRODUCT

18.9

40

S

AMPS PRODUCT

1.7

75

KG

AMYL ACETATE

5

68

S

AMYL ALCOHOL

35.5

-180

S

AMYL ALCOHOL

11.2

140

S

AMYL ALCOHOL

15.8

68

S

AMYL BENZOATE

5.1

68

S

AMYL BROMIDE

6.3

50

S

AMYL CHLORIDE

6.6

52

S

AMYL ETHER

3.1

60

S

AMYL FORMATE

5.7

66

S

AMYL IODIDE

6.9

62

S

AMYL NITRATE

9.1

62

S

AMYL THIOCYANATE

17.4

68

S

AMYLAMINE

4.6

72

S

AMYLENE

2

70

S

AMYLENE BROMIDE

5.6

58

S

AMYLMERCAPTAN

4.7

75

S

ANHYDRITE

4.9

75

K

ANILINE

7.8

32

S

ANILINE

5.5

212

S

ANILINE

7.3

68

S

ANILINE FORMALDEHYDE RESIN

3.5

75

KT

ANISALDEHYDE

15.8

68

S

ANISALDOXINE

9.2

145

S

ANISOLE

4.3

68

S

ANTIMONY

13.9

347

S

ANTIMONY PENTACHLORIDE

3.2

68

S

ANTIMONY TRIBROMIDE

20.9

212

S

ANTIMONY TRICHLORIDE

33

166

S

ANTIMONY TRICODIDE

13.9

347

S

ANTIMONY TRIIODIDE

13

350

S

APATITE

7.4

75

K

ARGON, LIQUIFIED

1.5

-376

S

ARSENIC

2.2

75

KG

ARSENIC TRIBROMIDE

9

98

S

ARSENIC TRICHLORIDE

12.4

70

S

ARSENIC TRIIODIDE

7

302

S

ARSINE

2.7

-58

S

ARSINE

2.5

-148

S

ASBESTOS

4.8

75

K

ASH, CEMENT KILN

12.5

75

KG

ASH, FLY (BOILER)

1.7

125

KT

ASH, FLY (BOILER)

1.9

80

KT

ASH, SODA

3.6

75

KG

ASH, SODA

1.6

75

KG

ASH, SODA (0.09% H2O)

1.7

75

KG

ASPHALT

2.6

75

K

ASPHALT

3.7

400

S

ATTREX 80 PRODUCT

1.7

75

KG

AZOXYANISOLE

2.3

122

S

AZOXYBENZENE

5.1

104

S

AZOXYPHENITOLE

6.8

302

S

BAKELITE PLASTIC

5

75

K

BAKING SODA

1.8

80

KT

BALL MILL FEEDTO 1" DIA

2.6

75

K

BALL MILL FEED, HI DENSITY

4.5

75

K

BARET STRANDS

1.8

75

KG

BARIUM CHLORIDE (2 H20)

9.4

75

K

BARIUM CHLORIDE (ANHYDROUS)

11.4

75

K

BARIUM NITRATE

5.9

75

K

BARIUM SULFATE

11.4

60

K

BARLEY MALT

2.6

75

KG

BARLITE ORE

2.7

75

KT

BAUXITE

3

75

KG

BAY FERROX

1.9

75

KG

BENTONITE

7.5

75

K

BENZAL CHLORIDE

6.9

75

S

BENZALDEHYDE

17

68

S

BENZALDEHYDE

19

32

S

BENZALDOXIME

3.8

68

S

BENZENE

2.3

77

S

BENZENE

2.1

275

S

BENZENE (1.0028)

1

700

G

BENZIL

13

202

S

BENZINE

7.6

75

S

BENZOL CHLORIDE

6.9

68

S

BENZOLDEHYDE

17.8

68

S

BENZONITRILE

22

160

S

BENZONITRILE

26

68

S

BENZOPHENONE

11.4

122

S

BENZOPHENONE

13

68

S

BENZOTRICHLORIDE

7.4

68

S

BENZOYL CHLORIDE

23

32

S

BENZOYL CHLORIDE

19

75

S

BENZOYLACETONE

3.8

68

S

BENZYL ACETATE

5

70

S

BENZYL ALCOHOL

13

68

S

BENZYL ALCOHOL

6.6

260

S

BENZYL BENZOATE

4.8

68

S

BENZYL CHLORIDE

6.4

68

S

BENZYL CYANIDE

18.3

68

S

BENZYL SALICYLATE

4.1

68

S

BENZYLAMINE

5.5

32

S

BENZYLAMINE

4.3

120

S

BENZYLAMINE

4.6

68

S

BENZYLETHYLAMINE

4.3

68

S

BENZYLMETHYLAMINE

4.4

67

S

BENZYULAMINE

4.6

68

S

BERYL

6

75

K

BISPHENOL

1.9

75

KT

BITUMEN FROTH

4.1

75

S

BORIC ACID

11.8

75

KT

BORNYL ACETATE

4.6

70

S

BORON BROMIDE

2.6

32

S

BORONYL CHLORIDE

5.2

202

S

BPA (PLASTIC RESIN)

1.3

75

KT

BRAN, WHEAT

1.5

75

KG

BROMAL

7.6

70

S

BROMAO-2-ETHOXYPENTANE

6.4

76

S

BROMINE

3.1

68

S

BROMINE (1.0128)

1

32

G

BROMO-2-ETHOXYHEPTANE

5.5

68

S

BROMO-2-ETHOXYHEPTANE

6.4

32

S

BROMOACETYL BROMIDE

12.6

68

S

BROMOANILINE

13

66

S

BROMOANILINE, (-M)

13

66

S

BROMOANISOLE

7.1

86

S

BROMOBENZENE

5.4

68

S

BROMOBUTANE

7.1

68

S

BROMOBUTYLENE

5.8

68

S

BROMOBUTYRIC ACID

7.2

68

S

BROMOCYCLOHEXANE

7.9

70

S

BROMODECANE

4.4

76

S

BROMODOCOSANE

3.1

130

S

BROMODODECANE

4.1

76

S

BROMOETHANE

9.4

68

S

BROMOFORM

4.4

68

S

BROMOHEPTANE

5.3

76

S

BROMOHEXADECANE

3.7

76

S

BROMOHEXANE

5.8

76

S

BROMOISOVALERIC ACID

6.5

68

S

BROMOMETHANE

9.8

32

S

BROMOMETHYLBUTANE

6

68

S

BROMOMETHYLPROPANE

7.2

68

S

BROMONAPHTHALENE

5.1

66

S

BROMONONANE

4.7

68

S

BROMOOCTADECANE

3.5

86

S

BROMOOCTANE

5

70

S

BROMOPENTADECANE

3.9

68

S

BROMOPENTANE

6.3

75

S

BROMOPROPANE

8.1

75

S

BROMOPROPENE

7

68

S

BROMOPROPIONIC ACID

11

68

S

BROMOTETRADECANE

3.8

75

S

BROMOTOLUENE

5.1

68

S

BROMOTOLUENE

4.3

137

S

BROMOTOLUENE, (-M)

5.4

137

S

BROMOTRIDECANE

4.2

50

S

BROMOUNDECANE

4.7

15

S

BTF PRODUCT

6.1

75

S

BUTANE

1.4

30

S

BUTANEDIOL

30

80

S

BUTANEDIOL DINITRATE

18

68

S

BUTANETHIOL

5

75

S

BUTANOL

17.8

68

S

BUTANOL

15.8

75

S

BUTANONE

18.5

68

S

BUTANONE OXIME

3.4

68

S

BUTOXYACETYLENE

6.6

75

S

BUTYL ALCOHOL (150-)

20

75

S

BUTYL ALCOHOL (N-)

7.8

75

S

BUTYL BROMIDE (-N)

6.6

68

S

BUTYL CHLORAL

10

64

S

BUTYL CHLORIDE

9.6

68

S

BUTYL ETHER

3.1

75

S

BUTYL FORMAT (-N)

2.4

-317

S

BUTYL IODIDE (-N)

6.1

77

S

BUTYL OLEATE

4

77

S

BUTYL STEARATE

3.1

80

S

BUTYLACETATE

5.1

66

S

BUTYLACETATE (-N)

5.1

66

S

BUTYLAMINE

5.4

70

S

BUTYLBENZENE

2.4

68

S

BUTYLPHENOL PORA-TERTIARY

3.9

100

S

BUTYRALDEHYDE

13.4

79

S

BUTYRIC ACID

2.8

68

S

BUTYRIC ANHYDRIDE

12

68

S

BUTYRONITRILE

20.7

70

S

CABOSIL

1.2

75

KG

CADMIUM OXIDE

1.6

75

KG

CALCITE

8

75

K

CALCIUM CARBONATE

9.1

75

K

CALCIUM CARBONATE

2.4

75

KG

CALCIUM FLORIDE

7.4

75

K

CALCIUM SILICATE

11.2

75

K

CALCIUM SULFATE

5.6

75

K

CALCIUM SULFATE

2.3

75

KT

CALCIUM UNDECYLENATE

1.3

75

KG

CAMPHANEDIONE

16

398

S

CAMPHENE

2.3

104

S

CAMPHENE

2.7

68

S

CAMPHORIC IMIDE

5.5

480

S

CAMPHORPINACONE

3.6

68

S

CANDY ( REESE'S PIECES)

2.1

75

KG

CAPROIC ACID

2.6

160

S

CAPROLACTAM MONOMER

1.7

75

KT

CAPROLACTUM

13.1

180

S

CAPRYLIC ACID

3.2

65

S

CARBON BLACK

2.5

75

KT

CARBON DIOXIDE (PRESSURIZED

1.6

32

S

CARBON DIOXIDE 9PRESSURIZED)

1.6

68

S

CARBON DISULPHID

2.2

350

S

CARBON DISULPHID

3

-166

S

CARBON DISULPHIDE

2.2

180

S

CARBON DISUPHIDE

2.6

68

S

CARBON TETRACHLORIDE

2.2

68

S

CARVENONE

18.4

68

S

CARVOL

11.2

64

S

CARVONE

11

71

S

CASEIN

6.1

75

S

CASSITERITE

23.4

75

K

CEDRENE

3.7

76

S

CELLULOSE (FROM WOOD)

3.9

75

K

CELLULOSE ACETATE

3.6

75

K

CELLULOSE ACETATE (MOLDING)

3.2

75

K

CELLULOSE ACETATE (SHEET)

4

75

K

CELLULOSE CETATE BUTYRATE

3.2

75

K

CELLULOSE NITRAE (PROXYLIN)

6.4

75

K

CEMENT-PLASTIC TYPE

1.9

140

KT

CEMENT-PORTLAND

2.3

140

KT

CEREAL (FLAKE)

3

75

KG

CEREAL (FRUIT LOOPS)

1.2

75

KG

CETYL IODIDE

3.3

68

S

CHARCOAL (GROUND)

1.2

75

KG

CHARCOAL (LUMP)

1.6

75

KT

CHLOPAL

5.5

59

S

CHLORACETIC ACID

12.3

140

S

CHLORAL

4.9

68

S

CHLORAL

5.5

59

S

CHLORAL

4.2

140

S

CHLORINATED SANITIZER

4.8

75

S

CHLORINE

2

32

S

CHLORINE

1.5

142

S

CHLORINE

2.1

-58

S

CHLORINE

1.9

58

S

CHLORO-A, DIHYDROXYPRONE

31

68

S

CHLOROACETIC ACID

21

68

S

CHLOROACETONE

29.8

68

S

CHLOROANALINE, (-M)

13.4

66

S

CHLOROBENZENE

5.9

68

S

CHLOROBENZENE

4.7

212

S

CHLOROBENZENE

7.2

-50

S

CHLOROBENZENE

5.6

77

S

CHLOROBENZENE

4.1

230

S

CHLOROBUTANE

9.1

-20

S

CHLOROBUTANE

7.4

68

S

CHLOROCYCLOHEXANE

7.6

76

S

CHLORODODECANE

3.9

100

S

CHLORODODECANE

4.2

75

S

CHLOROETHANE

6.2

340

S

CHLOROFORM

5.5

32

S

CHLOROFORM

3.7

212

S

CHLOROFORM

4.8

68

S

CHLOROGANILINE

13

65

S

CHLOROHEPTANE

5.5

71

S

CHLOROHEXANONE OXIME

3

192

S

CHLOROHYDRATE

3.3

68

K

CHLOROMETHANE

12.6

-35

S

CHLOROMETHYLBUTANE

6.1

65

S

CHLOROMETHYLPROPANE

6.5

45

S

CHLORONAPHTHALENE

5

76

S

CHLORONITROBENZENE

8

230

S

CHLOROOCTANE

5.1

76

S

CHLORO-OCTANE

5.1

76

S

CHLOROPENTANE

6.6

50

S

CHLOROPHENAL

6.3

75

S

CHLOROPHENAL

4.8

32

S

CHLOROPHENOL

9.5

130

S

CHLOROPHENOL (-O)

8.2

66

S

CHLOROPHETANE

5.4

75

S

CHLOROTOLUENE

4.5

68

S

CHLOROTOLUENE, (-M)

5.6

68

S

CHLROINE

1.5

287

S

CHOCOLATE

2.3

75

K

CHOLESTRAL

2.9

80

S

CHORINE

1.7

170

S

CHROMYL CHLORIDE

2.6

68

S

CINNAMALDEHYDE

16.9

75

S

CIS-3-HEXANE

2.1

76

S

CITRACONIC ANHYDRIDE

40.3

68

S

CLAY

2.5

25

KG

CLAY

7.4

25

K

CLINKER, CEMENT TO 1" DIA

2.7

75

K

CLINKER, CEMENT, PEA

3.8

75

KG

COAL BITUMINOUS 0% H2O

4.1

400

KT

COAL BITUMINOUS 0% H2O

3.2

700

KT

COAL BITUMINOUS-0% H2O

7.5

77

KT

COCAINE

3.1

75

K

COCOA

1.8

75

KG

COCOA BEANS

2.4

75

K

COFFEE "HIGH POINT"

1.5

75

KG

COFFEE BEANS (ROASTED)

4.4

75

K

COFFEE SOLVENT FOR CAFFINE

6

75

S

COKE (FROM COAL)

1.6

75

KT

COPPER CATALYST

6

75

KT

COPPER OLEATE

2.8

68

S

COPRA (DRY, FROM COCONUTS)

7.4

75

K

CORDERITE

2.5

75

KT

CORDERITE

4.5

75

K

CORN (GROUND)

2.5

75

KG

CORN COBS

1.8

75

KG

CORN COBS 2% H2O (CRUSHED)

2

75

KG

CORN STARCH

3.6

75

KG

CORN, DRY STORAGE

4.6

75

KG

CREOSOL

10.6

62

S

CRESOL

5

75

S

CRESOL, (-M)

5

75

S

CROTONIC NITRICE

28

68

S

CROTONONITRILE

28

68

S

CUMALDEHYDE

11

59

S

CUMENE

2.4

68

S

CUMICALDEHYDE

10.7

58

S

CUPRIC OLEATE

2.8

75

K

CUPRIC OXIDE

18.1

60

K

CUPRIC SULFATE (5H2O)

7.8

75

K

CUPRIC SULFATE (ANHYD/5H2)

10.3

75

K

CYANOACETIC ACID

33

40

S

CYANOETHYL ACETATE

19.3

68

S

CYANOGEN

2.6

73

S

CYCLOHEXADIENE

2.6

-128

S

CYCLOHEXADIONE

4.4

170

S

CYCLOHEXANE

2

68

S

CYCLOHEXANECARBOXYLIC ACID

2.6

88

S

CYCLOHEXANEMETHANOL

8

180

S

CYCLOHEXANEMETHANOL

9.7

140

S

CYCLOHEXANOL

7.2

212

S

CYCLOHEXANOL

15

77

S

CYCLOHEXANOL

4.8

300

S

CYCLOHEXANONE

19

-40

S

CYCLOHEXANONE

18.2

68

S

CYCLOHEXANONE OXIME

3

192

S

CYCLOHEXENE

2.2

75

S

CYCLOHEXENE

2.6

-187

S

CYCLOHEXLTRIFLUOROMETHANE

11

-120

S

CYCLOHEXYLAMINE

5.3

-5

S

CYCLOHEXYLPHENOL

4.4

260

S

CYCLOHEXYLPHENOL

4

130

S

CYCLOPENTANE

2

68

S

CYCLOPENTANOL

25

-40

S

CYCLOPENTANOL

18

68

S

CYCLOPENTANONE

16

-90

S

CYMENE

2.3

62

S

DECAHYDRONAPHTHALENE

2.2

68

S

DECAMETHYLCYCLOPENTASILOX

2.5

68

S

DECAMETHYLTETRASILOXANE

2.4

68

S

DECANE

2

68

S

DECANE

2.1

32

S

DECANE

1.8

340

S

DECANOL

8.1

68

S

DECYLENE (

2.7

62

S

DECYNE

2.2

68

S

DEUTERIUM (HEAVY HYDROGEN)

1.3

-454

K

DEUTERIUM OXIDE (HEAVY H20)

78.3

76

S

DEVRINOL

13.8

200

S

DIACETOXYBUTANE

6.6

76

S

DIACETOXYBUTANE

5.1

120

S

DIACETOXYPENTANE

5.2

75

S

DIALLYL SULFIDE

4.9

68

S

DIAMOND

5.5

77

K

DIATOMACEOUS

2.7

77

KG

DIATOMACEOUS EARTH,

4

77

KG

DIATOMITE

12.9

77

KG

DIBENZOFURAN

3

212

S

DIBENZYL SEBACATE

4.6

68

S

DIBENZYLAMINE

3.6

68

S

DIBROMOBENZENE

4.5

190

S

DIBROMOBENZENE

8.8

68