يبدو أنك لست عضوًا في TradeKey.com بعد. اشترك الآن للتواصل مع أكثر من 7 مليون مستورد ومصدر عالميًا.
انضم الآن ، مجانًا |
Book call on your favorite time
Code
       

By Signing Up. I agree to TradeKey.com Terms of Use, Privacy Policy, IPR and receive emails related to our services


Afexco Exporters

188 Eloff Street,Johannesburg,Gauteng,South Africa

عرض رقم الهاتف

عضو مجاني

Highest quality Borax, Sodium Borate BP IP USP NF ACS Analytical Reagent

South Africa

afexpo-11

أحصل على آخر سعر

South Africa

-

20 Metric Ton

In 25 HDPE bags with liners or 50 kg MS or HDPE drums with liners; 25kgs net new plastic woven bag1x

17 - 30 days

2600 Metric Ton per Month

T/T, L/C, D/A, Western Union, PayPal

Inorganic Chemicals

الاتصال الآن

مواصفات المنتج

Grade Standard : Agriculture Grade Purity (%) : 100 Appearance : white, crystalline powder, colourless crystals or crystalline masses, efflorescent, soluble in water Brand Name : afexpo-811 Classification : - CAS No. : - Other Names : - MF : - EINECS No. : - Application : -

الوصف

Borax BP

Borax BP; Sodium Borate; Sodium Tetraborate
MF Na2B4O7,10H2O --M.wt 381.4 -- cas# 1303-96-4

DEFINITION
Borax contains not less than 99.0 per cent and not more than the equivalent of 103.0  per cent of disodium tetraborate decahydrate.

CHARACTERS
A white, crystalline powder, colourless crystals or crystalline masses, efflorescent, soluble in water, very soluble in boiling water, freely soluble in glycerol.

IDENTIFICATION
A. To 1 ml of solution S (see Tests) add 0.1 ml of sulphuric acid and 5 ml of methanol \ and ignite. The flame has a green border.
B. To 5 ml of solution S add 0.1 ml of phenolphthalein solution. The solution is red. On the addition of 5 ml of glycerol (85 per cent) the colour disappears.
C. Solution S gives the reactions of sodium.

TESTS
Solution S
Dissolve 4.0 g in carbon dioxide-free water prepared from distilled water and  dilute to 100 ml with the same solvent.
Appearance of solution
Solution S is clear and colourless.
pH
The pH of solution S is 9.0 to 9.6.
Sulphates
15 ml of solution S complies with the limit test for sulphates (50 ppm).
Ammonium
6 ml of solution S diluted to 14 ml with water complies with the limit test for  ammonium (10 ppm).
Arsenic
5 ml of solution S complies with limit test A for arsenic (5 ppm).
Calcium
15 ml of solution S complies with the limit test for calcium (100 ppm).
Heavy metals
12 ml of solution S complies with limit test A for heavy metals (25 ppm).


Sodium Borate USP NF

Sodium Borate USP-NF; Borax USP NF
Na2B4O7-10H2O 381.37
Borax
Borax [1303-96-4]
Anhydrous 201.22 [1330-43-4]

Sodium Borate contains an amount of Na2B4O7 equivalent to not less than 99.0 percent and not more than 105.0 percent of Na2B4O7·10H2O.

Identification— A solution (1 in 20) responds to the tests for Sodium and for Borate.
Carbonate and bicarbonate— To 5 mL of a solution (1 in 20), contained in a test tube, add 1 mL of 3 N hydrochloric acid: no effervescence is observed.
Heavy metals— the limit is 0.002%.


Sodium Borate Decahydrate or Borax ACS Analytical Reagent

Sodium Tetraborate Decahydrate ACS
Na2B4O7 -10H2O
Formula Wt 381.37
CAS Number 1303-96-4

REQUIREMENTS
Assay: 99.5-105.0% Na2B4O7-10H2O
pH of a 0.01 M solution: 9.15-9.20 at 25C

MAXIMUM ALLOWABLE
Insoluble matter ........... 0.005%
Chloride (Cl) ............... 0.001%
Phosphate (PO4) ......... 0.001%
Sulfate (SO4) .............. 0.005%
Calcium (Ca) ............... 0.005%
Heavy metals (as Pb) ... 0.001%
Iron (Fe) ..................... 5 ppm

اتصل بنا

الشخص الذي يمكن الاتصال به: Mali

الشركة:Afexco Exporters

عنوان:188 Eloff Street, Johannesburg, Gauteng, South Africa,2001

رقم الهاتف:

عرض رقم الهاتف

التليفون المحمول:

عرض رقم الجوال

إلى,

Mali < Afexco Exporters >
أريد أن أعرف:

لمزيد من المنتجات من موردين آخرين

BORIC ACID BORIC ACID
Boronnitride Boronnitride
Borax Borax
borax borax
Decahydrate Borax Decahydrate Borax
potassium fluoroborate potassium fluoroborate
bromid, calcium chloride, magnesium chloride bromid calcium chloride
zinc borate zinc borate
heat transfer fluid heat transfer fluid
ZINC BORATE ZINC BORATE
Precipitated Barium Sulfate Precipitated Barium Sulfate
Sodium tetraborate Sodium tetraborate
Zinc Borate Zinc Borate
borax acid powder borax acid powder
Zinc Borate Zinc Borate
Boric acid Boric acid