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chromium atom

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Origin: China

Cas No: 7440-47-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details

Place of Origin:: Henan, China

Brand Name:: MEIQI

Model Number:: MQ-Cr99

Application:: Powder Metallurgy, Diamond Tools,

Shape:: powder

Material:: Chromium Metal

Chemical Composition:: Cr

Product name:: Cr Powder Purity Min95% Chromium Metal Powder cas 7440-47-3

Color:: Grey

Dimensions:: Customzied

Cr:: ≥95%

O:: ≤3%

C:: ≤3

Si+Fe+S+P:: ≤1

Packaging&Delivery

Selling Units:: Single item

Single package size:: 15X10X10 cm

Single gross weight:: 1.500 kg

Package Type:

5kg or 25kg Inner is plastic bag, Outer is Steel drum, or as customers' requirement

Lead Time:

Quantity(Kilograms)	1 - 100	>100
Est. Time(days)	10	To be negotiated

Products Description

Metal Grade	Chemical Composition %
		Cr	Fe	Si	Al	S	P	C	N	O
		≥	≤
Cr99.7	99.7	0.065	0.10	0.04	0.04	0.003	0.02	0.0025	0.03
Cr99.5	99.5	0.10	0.10	0.05	0.04	0.003	0.04	0.0030	0.04
Size	200-325 mesh or According to the customer's requirement
Packaging	1 kg/ bag,25 kg/ drum. Inner is plastic bag, Outer is Steel drum, or as customers' requirement

Property

CAS No.: 7440-47-3 Formula: Cr Molecular Weight: 51.99610

Basic Info

Chemical Name	chromium atom
Synonyms	Chromium metal; Chromium; Chrome; Chrom; cromo;
CAS No.	7440-47-3
Molecular Formula	Cr
Molecular Weight	51.99610
PSA	0.00000
LogP	0.00000

Properties

Appearance & Physical State	silver-gray solid
Density	7.20ºC
Boiling Point	2200ºC
Melting Point	1890ºC
Flash Point	50 °F
Stability	Stable. Incompatible with carbonates, strong bases, mineral acids, lithium, sulfur dioxide, strong acids.

Safety Info

RTECS	GB4200000
Hazard Class	4.1
Safety Statements	S36/37-S45
HS Code	8112210000
Packing Group	III
WGK Germany	3
RIDADR	UN 2924 3/PG 2
Risk Statements	R40
Hazard Codes	Xn
Signal Word	Warning
Symbol	GHS09
Hazard Declaration	H410

Synthesis Route

chromium(3+) trichloride→chromium atom
chromium(3+) trichloride+magnesium atom→chromium atom
→chromium atom

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Unreported	LD50 - Lethal dose, 50 percent kill	Rodent - rat	27500 ug/kg	1.Details of toxic effects not reported other than lethal dose value
Intravenous	TDLo - Lowest published toxic dose	Rodent - rat	2160 ug/kg/6W-I	1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria 2.Gastrointestinal-tumors 3.Blood-lymphoma, including Hodgkin's disease
Implant	TDLo - Lowest published toxic dose	Rodent - rat	1200 ug/kg/6W-I	1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria 2.Blood-lymphoma, including Hodgkin's disease 3.Tumorigenic-tumors at site of application