碳酸钙 Calcium Carbonate 501-034_价格_北京谱朋科技有限公司

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产品特点：

Pure Chemical Standards

LECO Corporation is A2LA accredited in accordance with International Standards Organization ISO/IEC 17025:2005 (Certificate No. 3285.01) and Guide 34:2009 (Certificate No. 3285.02) as a reference material producer. Guide 34:2009 products are designated with a in the following tables.

订购信息：

Pure Chemical Standards

Part No.

Description

% C

% H

% N

% O

% S

BTU/lb.

Contents

501-034

Calcium Carbonate

—

50 g

501-048

Potassium Biphtalate

47.05

2.47

—

31.34

—

20 g

501-050

Nicotinic Acid

58.53

4.09

11.38

—

15 g

501-053

Acetanilide

71.09

6.71

10.36

11.84

—

10 g

501-441

Sucrose

42.1

6.48

—

51.42

—

50 g

502-085

Zinc Sulfide

—

32.91

—

50 g

502-092

EDTA

40.80–41.20

5.46–5.54

9.5–9.60

—

50 g

502-092-250

EDTA

40.80–41.20

5.46–5.54

9.52–9.60

—

250 g

502-101

Durene

89.49

10.51

—

10 g

502-184

Benzoic Acid Powder

68.85

4.95

—

26.2

—

11373

10 g

502-203

Stearic Acid

75.99

12.76

—

11.25

—

5 g

502-204

Dinitrobenzoic Acid

39.63

1.9

13.21

45.26

—

5 g

502-205

Caffeine

49.48

5.19

28.85

16.48

—

5 g

502-207

Cystine

29.99

5.03

11.66

26.63

26.69

—

5 g

502-209

Sulfamethazine

51.78

5.07

20.13

11.5

11.52

—

5 g

502-211

Glycine

6.71

18.66

42.63

—

50 g

502-298

Sulfamethazine

51.78

5.07

20.13

11.5

11.52

—

25 g

502-601

Nitrogen (Aqueous)

—

0.0100% (100 ppm)

—

(5) 10 ml vial

502-602

Nitrogen (Aqueous)

—

0.1% (1000 ppm)

—

(5) 10 ml Vial

502-634

High Purity Graphite Powder

100%

—

50 g

502-641

Phenylalanine

65.4

6.7

8.5

—

5 g

502-642

Phenylalanine

65.4

6.7

8.5

—

50 g

502-654▲

BBOT

72.5

6.5

—

7.4

—

25 g

774-208-150

Benzoic Acid

—

11373

(50) 1 g tblt.

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供货周期：	一周
品牌：	力可
货号：	4357172