D-Tartaric acid

Content description：1.Product name :D-Tartaric acidCAS :147-71-7HS code :29181200EINECS :205-695-6molecular formula:C4H6O6MDL :MFCD00004238Package:25kg/bags 25ton/40feet containerTest itemSpecificationDescriptionWhite cr···

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Product Introduction

1.Product name :D-Tartaric acid

CAS :147-71-7

HS code : 29181200

EINECS :205-695-6

molecular formula :C4H6O6

MDL :MFCD00004238

Package : 25kg/bags 25ton/40feet container

Test item	Specification
Description	White crystals or white powder
SpecificRotation[alpha/20/D	-12~-12.8
Sulphate(so4)	≤0.05% Not more than 0.05%
Heavy metals(pb)	≤0.001% Not more than 0.001%
Residue on Ignitiom	≤0.1% Not more than 0.1%
Loss on drying	≤0.5% Not more than 0.5%
Assay	≥99.5% Not less than 99.5%
Optical purity(ee value)	≥99.7% Not iess than 99.7%
Clarity test	In accordance with the standard ofexperiment

Use 1

Used as medicine separation agent, food additive, biochemical reagent and so on. Uses: This product is widely used in food industry, such as beer blowing agent, food sourness agent, taste correcting agent, used in refreshing drinks, candy, juice, sauce, cold dishes, baking powder and so on. This product conforms to the Japanese food additives public regulations.

Use 2

Used as chromatographic analysis reagent and masking agent

Use 3

Tartaric acid is widely used as an acidifier in beverages and other foods, a use similar to citric acid. Tartaric acid is used in combination with tannin as a mordant for acidic dyes, and is also used in certain development and fixing operations in the photographic industry, and its iron salts are photosensitive, so they can be used to make blueprints. Tartaric acid can be complexed with a variety of metal ions, and can be used as a cleaning agent and polishing agent for metal surfaces. Potassium sodium tartrate (Rochelle salt) can be formulated as a Fehring reagent, can also be used in medicine as a laxative and diuretic, and is also used as an intermediate of Cinchophen. Its crystals have piezoelectric properties and can be used in the electronics industry

1. 甲苯

Product name ： toluene /methylbenzene

Cas：108-88-3

Hs code：2902300000

Package:170kg/drum

Items	Unit	Specification	Results
Appearance	/	Color less,inclusion-free	Pass
Content	%	99.9MIN	99.91
Color(Hazen)	/	10MAX	5.00
Benzene content (mass fraction)	%	0.03MAX	0.0003
C8 aromatics content (mass fraction)	%	0.05MAX	<0.0002
Non-aromatic Hydrocarbon content (mass fraction)	%	0. 1MIN	0.0318
Acid wash colorimetric	g/l	The color of the acid layer is not darker than the standard solution containing 0.2g potassium dichromate in 1L dilute acid	0.05
Total sulfur content	Mg/kg	2MAX	<1.0
Evaporation Residue	Mg/100ml	3MAX	0.50
Neutral test	/	Neutral	Neutral
Bromine Index	Mg/100g	/	1.80

Uses: Toluene is used as a large number of solvents and high-octane gasoline additives, but also an important raw material for organic chemicals, but at the same time from coal and petroleum benzene and xylene compared to the current production of relatively excess, so a considerable amount of toluene is used for dealkylation to benzene or disproportionation to xylene. A series of intermediates derived from toluene, widely used in dyes; Medicine; Pesticides; Explosive; Auxiliaries; The production of fine chemicals such as spices is also used in the synthetic materials industry. Benzyl chloride obtained by side chain chlorination of toluene; Dichlorobenzyl and trichlorobenzyl, including their derivative benzyl alcohol; Benzaldehyde and benzoyl chloride (also generally obtained from benzoic acid photogasification), in medicine; Pesticides; Dyes, especially spices, are widely used in synthesis. The cyclic chlorination products of toluene are pesticides; Medicine; Intermediate of dyes. Toluene is oxidized to benzoic acid, which is an important food preservative (mainly using its sodium salt) and is also used as an intermediate in organic synthesis. Intermediates prepared by sulfonation of toluene and benzene derivatives, including p-toluene sulfonic acid and its sodium salt; CLT acid; Toluene-2, 4-disulfonic acid; Benzaldehyde-2, 4-disulfonic acid; Toluene sulfonyl chloride, etc., used in detergent additives, chemical fertilizer anti-caking additives; Organic pigments; Medicine; The production of dyes. Toluene was nitrated to produce a large number of intermediates. Many final products can be derived, including polyurethane products; Dyes and organic pigments; Rubber additives; Medicine; Things like explosives are the most important. Toluene reacts with concentrated nitric acid to form trinitrotoluene (TNT).