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langfang tianke biotechnology
professional production base of general chemical reagent and pharmaceutical accessories
hotline: 86-15076659665
products
products
sodium carbonate

molecular formula: na2co3
molecular weight: 105.99
cas no:497-19-8
properties: white powder. relative density is 2.532. breaks down at 400℃. melting point is 851℃. easily soluble in water, insoluble in ethyl alcohol.
uses: as analytical reagent and standard reagent. in preparing sodium salts, soda glasses, optical glasses, and etc.
standard:

standard/item

analytical pure-ar

chemical pure-cp

assay(na2co3) /%

≥99.8

≥99.8

clarity test

qualified

qualified

water insoluble matter

≤0.01

≤0.02

drying loss

≤1.0

≤1.0

chloride(cl)

≤0.002

≤0.005

sulfur compound(so4)

≤0.005

≤0.01

nitrogen compound(n)

≤0.001

≤0.002

phosphate and silicate(sio3)

≤0.006

≤0.013

magnesium (mg)

≤0.002

≤0.005

aluminium (al)

≤0.003

≤0.01

potassium (k)

≤0.005

≤0.02

calcium (ca)

≤0.01

≤0.02

iron (fe)

≤0.0005

≤0.001

heavy metal(pb)

≤0.0005

≤0.001

packing: woven bag, kraft bag or fiber drum lined with plastic, net weight is 25kg.

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langfang tianke biotechnology co., ltd.
add: sanghang industrial park, dacheng county,
hebei, china
tel: 86-15076659665 manager ma
fax: 86-316-5569332 
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